Chem-Tech technical resource

Laboratory Test List

Review published tests, analytical methods, technical purpose and interpretation context across Chem-Tech service divisions.

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248 published test entries across 17 service groups

Lubricants & fluids

Lubricating oils

Physical, chemical, contamination and condition-monitoring parameters for fresh and in-service lubricants.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Appearance	CTP T 112	Records the visible condition and colour of the submitted sample.	Unexpected haze, sediment, separation or colour change may indicate contamination, degradation or sample-handling effects; compare with the product reference.	Inhouse
Density / Specific Gravity	ASTM D1298 / ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Kinematic Viscosity	ASTM D445 / ASTM D7042	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Viscosity Index	ASTM D2270	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Water Content	ASTM E203 / ASTM D1744 / ASTM D6304	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Flash & Fire Point (COC)	ASTM D92	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Total Base Number	ASTM D4739 / ASTM D2896	Measures reserve alkalinity in applicable lubricants.	A lower result relative to fresh oil or trend data may indicate reserve depletion; an unexpectedly high value may indicate a different formulation or mixing.	Inhouse
Total Acid Number	ASTM D664 / ASTM D974	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Elemental Analysis by ICP	ASTM D5185 / ASTM D4951	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Particle Count / Cleanliness	NAS 1638 / ISO 4406	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Foaming Tendency & Stability	ASTM D892	Assesses foam tendency and, where applicable, foam stability.	Higher foam volume or persistence may indicate poorer air-release behaviour, contamination or additive-related change under the test conditions.	Inhouse
Water Separability	ASTM D1401	Assesses separation behaviour between oil and water.	Longer separation time or persistent emulsion may indicate reduced water-separation performance; compare with the applicable product requirement.	Inhouse
Soot Content	ASTM D7686	Measures combustion-derived soot in used engine oil.	A higher result indicates greater soot loading and should be reviewed with engine condition, oil hours and viscosity change.	Inhouse
Fuel Dilution	ASTM D7593	Assesses fuel contamination in used engine oil.	A higher result indicates more fuel in the lubricant and may be associated with viscosity reduction; operating information is needed for diagnosis.	Inhouse
PQ Index	ASTM D8184	Measures or evaluates pq index under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
FTIR Condition Monitoring	ASTM E2412	Assesses oxidation stability or condition-related spectral indicators.	Greater oxidation-related change may indicate degradation; stability results and spectral trends must be interpreted using the applicable method and reference.	Inhouse
Pour Point	ASTM D97	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse
Sulphur Content	ASTM D4294	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Ash Content	ASTM D482	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Conradson Carbon Residue	ASTM D189	Assesses the tendency to leave carbonaceous residue under the selected procedure.	A higher result indicates greater residue-forming tendency; relevance depends on the fuel grade and application.	Inhouse
Insolubles	ASTM D893	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Saponification Value	ASTM D94	Measures or evaluates saponification value under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Analytical Ferrography	ASTM D7690	Measures or evaluates analytical ferrography under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Cooling Curve Analysis	ASTM D6200	Measures or evaluates cooling curve analysis under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Distillation Recovery / Initial Boiling Point	ASTM D86	Characterises volatility and recovery across the boiling range.	Higher or lower recovery temperatures may indicate composition change, contamination or a different product grade when compared with the applicable specification.	Inhouse

Lubricants & fluids

Grease

Composition, consistency, stability, corrosion and load-carrying characteristics for lubricating greases.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Soap or Thickener Type	ICP-OES	Measures or evaluates soap or thickener type under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Base Oil Viscosity at 40 °C	ASTM D445	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Drop Point	ASTM D566	Measures or evaluates drop point under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Worked Cone Penetration - 60 Strokes	ASTM D217	Measures or evaluates worked cone penetration - 60 strokes under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Worked Cone Penetration - Extended Working	ASTM D217	Measures or evaluates worked cone penetration - extended working under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Copper Corrosion	ASTM D4048	Measures or evaluates copper corrosion under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Water Content	ASTM D95 / ASTM D1744	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Elemental Analysis by ICP	ASTM D7303	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Water Washout Characteristics	ASTM D1264	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Oil Separation	IP 121 / ASTM D1742	Measures or evaluates oil separation under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Storage Stability	ASTM D1742	Measures or evaluates storage stability under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Heat Stability	ASTM D6184	Measures or evaluates heat stability under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Roll Stability	ASTM D1831	Measures or evaluates roll stability under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced
Wheel Bearing Leakage Tendency	ASTM D1263	Measures or evaluates wheel bearing leakage tendency under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced
Four Ball Weld Load	ASTM D2596	Measures or evaluates four ball weld load under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Four Ball Wear Scar Diameter	ASTM D2266	Measures or evaluates four ball wear scar diameter under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Emcor Rust Test	ASTM D6138	Measures or evaluates emcor rust test under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Oxidation Stability	ASTM D942	Assesses oxidation stability or condition-related spectral indicators.	Greater oxidation-related change may indicate degradation; stability results and spectral trends must be interpreted using the applicable method and reference.	Inhouse
Corrosion Preventive Characteristics	ASTM D1743	Measures or evaluates corrosion preventive characteristics under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse

Lubricants & fluids

Metalworking fluids

Condition, concentration, contamination and performance-related tests for neat and water-miscible fluids.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Kinematic Viscosity at 40 °C and 100 °C	ASTM D445	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Viscosity Index	ASTM D2270	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Total Acid Number	ASTM D664	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Flash Point	ASTM D92	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Moisture Content	ASTM D95	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
i-pH Value	ASTM D7946	Measures acidity or alkalinity of the sample under the selected procedure.	A result above or below the required range may affect treatment control, corrosion, scaling, process suitability or product conformity.	Inhouse
Sulphur Content	ASTM D4294	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Elemental Analysis	ASTM D5185	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Copper Strip Corrosion	ASTM D130	Measures or evaluates copper strip corrosion under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Rust Test	ASTM D665	Measures or evaluates rust test under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced
Chlorine Content	ASTM D4929	Measures or evaluates chlorine content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Sediments	ASTM D4055	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Ferrography	ASTM D7680	Measures or evaluates ferrography under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Particle Count	ISO 4406 / NAS 1638	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
pH	pH Meter	Measures acidity or alkalinity of the sample under the selected procedure.	A result above or below the required range may affect treatment control, corrosion, scaling, process suitability or product conformity.	Inhouse
Tramp Oil	Acid Split	Measures or evaluates tramp oil under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Concentration	Acid Split / Refractometer	Measures or evaluates concentration under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Bacteria Count	Kit Method	Assesses the selected microbiological indicator or organism group.	Detection or a higher count indicates greater microbiological loading; interpretation must follow the applicable water-use requirement and sampling controls.	Inhouse
Hardness	Titration	Measures hardness-forming minerals or their contributing ions.	Higher values can increase scaling tendency; very low values may be relevant to corrosivity or treatment control depending on the application.	Inhouse
Conductivity	Conductivity Meter	Assesses ionic or dissolved-material content in water.	A higher result generally indicates more dissolved ionic material; significance depends on the water source, treatment and intended use.	Inhouse

Lubricants & fluids

Quenching oil

Condition and heat-treatment performance indicators for fresh and in-service quenching oils.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Cooling Analysis Curve	ASTM D6200	Measures or evaluates cooling analysis curve under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Kinematic Viscosity at 40 °C and 100 °C	ASTM D445	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Viscosity Index	ASTM D2270	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Volatile Matter at 210 °C for 2 Hours	CTP	Measures or evaluates volatile matter at 210 °c for 2 hours under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Saponification Number	ASTM D94	Measures or evaluates saponification number under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Total Acid Number	ASTM D664	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Precipitation Number	ASTM D91	Measures or evaluates precipitation number under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Moisture Content	ASTM D95	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Flash Point	ASTM D92	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
pH Value	ASTM D1287	Measures acidity or alkalinity of the sample under the selected procedure.	A result above or below the required range may affect treatment control, corrosion, scaling, process suitability or product conformity.	Inhouse

Lubricants & fluids

Thermic fluid

Thermal-degradation, volatility, acidity and contamination indicators for heat-transfer fluids.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Specific Gravity or Density at 15 °C	ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Kinematic Viscosity at 40 °C	ASTM D7042	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Kinematic Viscosity at 100 °C	ASTM D7042	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Viscosity Index	ASTM D2270	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Ash Content	ASTM D482	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Total Acid Number	ASTM D664	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Flash and Fire Point - COC	ASTM D92	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Conradson Carbon Residue	ASTM D189	Assesses the tendency to leave carbonaceous residue under the selected procedure.	A higher result indicates greater residue-forming tendency; relevance depends on the fuel grade and application.	Inhouse
Insoluble in Hexane	ASTM D893	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Insoluble in Toluene	ASTM D893	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Distillation Recovery / Initial Boiling Point	ASTM D86	Characterises volatility and recovery across the boiling range.	Higher or lower recovery temperatures may indicate composition change, contamination or a different product grade when compared with the applicable specification.	Inhouse
Water Content - Potentiometric	ASTM E203	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse

Lubricants & fluids

Coolant

Chemical condition, freeze/boil protection, corrosion-related elements and contamination indicators.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Colour	CTP T112	Records the visible condition and colour of the submitted sample.	Unexpected haze, sediment, separation or colour change may indicate contamination, degradation or sample-handling effects; compare with the product reference.	Inhouse
pH	ASTM D1287	Measures acidity or alkalinity of the sample under the selected procedure.	A result above or below the required range may affect treatment control, corrosion, scaling, process suitability or product conformity.	Inhouse
Total Dissolved Solids	CTP T093	Assesses ionic or dissolved-material content in water.	A higher result generally indicates more dissolved ionic material; significance depends on the water source, treatment and intended use.	Inhouse
Chloride Content	ASTM D3634	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Sulphate Content	ASTM D5827	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Nitrate Content	ASTM D5827	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Total Hardness	CTP T164	Measures hardness-forming minerals or their contributing ions.	Higher values can increase scaling tendency; very low values may be relevant to corrosivity or treatment control depending on the application.	Inhouse
Conductivity	CTP T144	Assesses ionic or dissolved-material content in water.	A higher result generally indicates more dissolved ionic material; significance depends on the water source, treatment and intended use.	Inhouse
Elemental Analysis - Wear and Corrosion Metals	ASTM D6130	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Reserve Alkalinity	ASTM D1121	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Foaming Tendency	ASTM D1881	Assesses foam tendency and, where applicable, foam stability.	Higher foam volume or persistence may indicate poorer air-release behaviour, contamination or additive-related change under the test conditions.	Inhouse
Equilibrium Reflux Boiling Point	ASTM D1120	Characterises volatility and recovery across the boiling range.	Higher or lower recovery temperatures may indicate composition change, contamination or a different product grade when compared with the applicable specification.	Inhouse
Freezing Point	ASTM D3321	Measures or evaluates freezing point under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Water Content	ASTM E203	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Glycol Content	Refractometer	Measures or evaluates glycol content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Oxalate, Formate and Inorganic Ions	ASTM D5827	Measures or evaluates oxalate, formate and inorganic ions under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse

Lubricants & fluids

AdBlue / diesel exhaust fluid

Identity, urea concentration and impurity-related parameters aligned with the published AdBlue capability.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Urea Content	ISO 22241-2 Annex C	Measures or evaluates urea content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Refractive Index	ISO 22241-2 Annex C	Measures or evaluates refractive index under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Alkalinity as NH₃	ISO 22241-2 Annex D	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Biuret	ISO 22241-2 Annex E	Measures or evaluates biuret under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Aldehydes	ISO 22241-2 Annex F	Measures or evaluates aldehydes under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Phosphate	ISO 22241-2 Annex H	Measures or evaluates phosphate under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Identity	ISO 22241-2 Annex J	Measures or evaluates identity under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse

Fuels & solid fuels

Diesel fuel

Specification, combustion, low-temperature, contamination and handling-safety parameters for diesel fuels.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Inorganic Acidity	IS 1448 (P2)	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Total Acidity	IS 1448 (P2)	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Ash Content	ASTM D482 / IS 1448 (P4)	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Ramsbottom Carbon Residue	ASTM D524 / IS 1448 (P8)	Assesses the tendency to leave carbonaceous residue under the selected procedure.	A higher result indicates greater residue-forming tendency; relevance depends on the fuel grade and application.	Inhouse
Cetane Index	ASTM D4737	Measures or evaluates cetane index under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Pour Point	ASTM D97 / IS 1448 (P10)	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse
Copper Strip Corrosion	ASTM D130 / IS 1448 (P15)	Measures or evaluates copper strip corrosion under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Distillation Recovery with IBP / FBP	ASTM D86 / IS 1448 (P18)	Characterises volatility and recovery across the boiling range.	Higher or lower recovery temperatures may indicate composition change, contamination or a different product grade when compared with the applicable specification.	Inhouse
Flash Point - Abel	IS 1448 (P20)	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Kinematic Viscosity at 40 °C	ASTM D445 / ASTM D7042 / IS 1448 (P25)	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Sediment by Extraction	ASTM D473 / IS 1448 (P30)	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Density / Specific Gravity	ASTM D1298 / ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Total Sulphur	ASTM D4294 / ASTM D5453	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Water Content	ASTM D6304 / ISO 12937	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Cold Filter Plugging Point	ASTM D6371 / IS 1448 (P110)	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse
Lubricity - Wear Scar Diameter	ASTM D6079	Measures or evaluates lubricity - wear scar diameter under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced
Gross Calorific Value	ASTM D240 / IS 1448 (P6)	Measures the heat released during controlled combustion.	A higher value indicates greater energy content per reported basis; a lower value may reflect moisture, ash or material-composition differences.	Inhouse
Chlorine Content	ASTM D4929	Measures or evaluates chlorine content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Cleanliness	ISO 4406	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Oxidation Stability	ASTM D2274	Assesses oxidation stability or condition-related spectral indicators.	Greater oxidation-related change may indicate degradation; stability results and spectral trends must be interpreted using the applicable method and reference.	Inhouse
Total Contamination	EN 12662	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Cloud Point	ASTM D2500	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse

Fuels & solid fuels

Biodiesel

Fuel-property, ester-content, stability, contamination and specification-related biodiesel parameters.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Density / Specific Gravity	ASTM D1298 / ASTM D4052 / ISO 12185	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Kinematic Viscosity at 40 °C	ASTM D445 / ASTM D7042 / ISO 3104	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Carbon Residue - RBCR	ASTM D524 / ISO 10370	Assesses the tendency to leave carbonaceous residue under the selected procedure.	A higher result indicates greater residue-forming tendency; relevance depends on the fuel grade and application.	Inhouse
Sulphur Content	ASTM D4294	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Sulphated Ash	ASTM D874 / ISO 3987	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Water Content	ASTM D6304 / ISO 12937	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Sediments by Centrifuge	Chem-Tech Test List	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Copper Strip Corrosion	ASTM D130 / ISO 2160	Measures or evaluates copper strip corrosion under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Total Acid Number	ASTM D664	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Total Contamination	EN 12662	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Ester / FAME Content	EN 14103	Measures or evaluates ester / fame content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Phosphorus and Alkali Metals	ASTM D7111	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Iodine Value	EN 14104	Measures or evaluates iodine value under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Gross Calorific Value	ASTM D240	Measures the heat released during controlled combustion.	A higher value indicates greater energy content per reported basis; a lower value may reflect moisture, ash or material-composition differences.	Inhouse
Flash Point - PMCC	ASTM D93	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Oxidation Stability	EN 14112	Assesses oxidation stability or condition-related spectral indicators.	Greater oxidation-related change may indicate degradation; stability results and spectral trends must be interpreted using the applicable method and reference.	Inhouse
Methanol and Ethanol Content	EN 14110	Measures or evaluates methanol and ethanol content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced
Total and Free Glycerol	ASTM D6584	Measures or evaluates total and free glycerol under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced

Fuels & solid fuels

Bunker and marine fuel

Marine-fuel quality, ignition-related, contamination, stability and handling parameters.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Density	ISO 3675 / ISO 12185 / ASTM D1298 / ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Kinematic Viscosity	ISO 3104 / ASTM D445 / ASTM D7042	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Flash Point - Pensky-Martens	ISO 2719 / ASTM D93	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Cloud Point	ISO 3015 / ASTM D2500	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse
Pour Point	ISO 3016 / ASTM D97	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse
Water Content	ISO 3733 / ASTM D95	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Cetane Index	ISO 4264	Measures or evaluates cetane index under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Ash Content	ISO 6245 / ASTM D482	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Sulphur Content	ISO 8754 / ASTM D4294	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Total Sediment	ISO 10307-1	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Carbon Residue	ISO 10370	Assesses the tendency to leave carbonaceous residue under the selected procedure.	A higher result indicates greater residue-forming tendency; relevance depends on the fuel grade and application.	Inhouse
Lubricity - HFRR	ASTM D6078	Measures or evaluates lubricity - hfrr under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Outsourced
Oxidation Stability	ISO 12205 / ASTM D2274	Assesses oxidation stability or condition-related spectral indicators.	Greater oxidation-related change may indicate degradation; stability results and spectral trends must be interpreted using the applicable method and reference.	Inhouse
Water Content - Karl Fischer	ISO 12937 / ASTM D1744	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Elemental Analysis	IP 470	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Acid Number	ASTM D664	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse

Fuels & solid fuels

Furnace oil

Viscosity, combustion value, residue, water, sulphur and handling characteristics for furnace oil.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Density at 15 °C	IS 1448 (P32) / ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Kinematic Viscosity at 50 °C	IS 1448 (P25) / ASTM D445	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Kinematic Viscosity at 100 °C	IS 1448 (P25) / ASTM D445	Characterises resistance to flow and, where applicable, viscosity response to temperature.	Higher viscosity may accompany oxidation, soot or heavier-product contamination; lower viscosity may accompany dilution, shear or lighter-product mixing.	Inhouse
Flash Point - PMCC	IS 1448 (P21) / ASTM D93	Determines the temperature at which vapour ignites under the selected procedure.	A lower result may indicate volatile contamination or product change; a higher result is interpreted against the identified grade and method.	Inhouse
Water Content - Dean and Stark	IS 1448 (P40) / ASTM D95	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
Ash Content	IS 1448 (P4) / ASTM D482	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Conradson Carbon Residue	IS 1448 (P122) / ASTM D189	Assesses the tendency to leave carbonaceous residue under the selected procedure.	A higher result indicates greater residue-forming tendency; relevance depends on the fuel grade and application.	Inhouse
Inorganic Acidity	IS 1448 (P2)	Measures acidic constituents under the selected method.	An increase from the reference may support oxidation or acidic-contamination review; a single result must be compared with product and service history.	Inhouse
Sediments	CTP	Assesses particulate, sediment or insoluble contamination in the sample.	A higher result indicates more suspended or insoluble material; acceptability depends on the equipment, product specification and sampling point.	Inhouse
Asphaltenes	IS 1448 (P22) / ASTM D6560	Measures or evaluates asphaltenes under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Metal Content	IP 501	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Pour Point	IS 1448 (P10 Sec 2) / ASTM D97	Assesses low-temperature flow or operability characteristics.	A higher temperature generally indicates poorer low-temperature behaviour; compare with the climatic and product requirement.	Inhouse
Gross Calorific Value	IS 1448 (P6) / ASTM D240	Measures the heat released during controlled combustion.	A higher value indicates greater energy content per reported basis; a lower value may reflect moisture, ash or material-composition differences.	Inhouse
Net Calorific Value	IS 1448 (P6)	Measures the heat released during controlled combustion.	A higher value indicates greater energy content per reported basis; a lower value may reflect moisture, ash or material-composition differences.	Inhouse
Sulphur Content	IS 1448 (P33) / ASTM D4294	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Hydrogen Content	IS 1448 (P6) / Calculation	Measures or evaluates hydrogen content under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse

Fuels & solid fuels

Gasoline

Core published fuel-property checks relevant to gasoline quality investigations.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Copper Strip Corrosion	ASTM D130 / IS 1448 (P15)	Measures or evaluates copper strip corrosion under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Distillation Recovery with IBP / FBP	ASTM D86 / IS 1448 (P18)	Characterises volatility and recovery across the boiling range.	Higher or lower recovery temperatures may indicate composition change, contamination or a different product grade when compared with the applicable specification.	Inhouse
Density / Specific Gravity	ASTM D1298 / ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Total Sulphur	ASTM D4294 / ASTM D5453	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Water Content	ASTM D6304 / ISO 12937	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse

Fuels & solid fuels

Aviation turbine fuel

Core published fuel-property checks used when defining an aviation-fuel testing requirement.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Copper Strip Corrosion	ASTM D130 / IS 1448 (P15)	Measures or evaluates copper strip corrosion under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Distillation Recovery with IBP / FBP	ASTM D86 / IS 1448 (P18)	Characterises volatility and recovery across the boiling range.	Higher or lower recovery temperatures may indicate composition change, contamination or a different product grade when compared with the applicable specification.	Inhouse
Density / Specific Gravity	ASTM D1298 / ASTM D4052	Measures mass per unit volume and supports product identification or specification review.	A result above or below the applicable range may indicate product mixing, contamination, composition change or an incorrect grade.	Inhouse
Total Sulphur	ASTM D4294 / ASTM D5453	Quantifies sulphur in the submitted fuel or material.	A higher result may affect specification compliance, emissions-related requirements or process suitability; compare with the identified grade.	Inhouse
Water Content	ASTM D6304 / ISO 12937	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse

Fuels & solid fuels

Coal and briquette

Solid-fuel scope is confirmed against the sample type, customer objective and applicable specification.

Source: Petroleum Products, Lubricants, Fuels, Coolant and AdBlue Test List

A controlled test-to-method mapping for coal and briquette is awaiting Chem-Tech technical confirmation and is therefore not published here.

Food & water

Food and agricultural products

Physicochemical, nutritional and microbiological parameters selected according to the submitted food matrix.

Source: Food, Food Products and Water Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Moisture	Applicable FSSAI / IS method by food matrix	Quantifies water or moisture in the submitted material.	A higher result may indicate ingress, condensation, storage or handling contamination; significance depends on the product and applicable limit.	Inhouse
pH	Applicable FSSAI method by food matrix	Measures acidity or alkalinity of the sample under the selected procedure.	A result above or below the required range may affect treatment control, corrosion, scaling, process suitability or product conformity.	Inhouse
Acidity	Applicable FSSAI / IS method by food matrix	Measures or evaluates acidity under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Total Solids	Applicable FSSAI method by food matrix	Measures or evaluates total solids under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Total Ash	Applicable FSSAI / IS method by food matrix	Measures non-combustible residue remaining after controlled combustion.	A higher result indicates more inorganic residue and may affect fuel quality, deposits or specification compliance.	Inhouse
Total Fat	Applicable FSSAI / IS method by food matrix	Measures or evaluates total fat under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Total Protein	Applicable FSSAI / IS method by food matrix	Measures or evaluates total protein under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Carbohydrates	Calculation / applicable source method	Measures or evaluates carbohydrates under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Energy	Calculation / applicable source method	Measures or evaluates energy under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Total, Natural and Added Sugar	Applicable FSSAI / SOP method by food matrix	Measures or evaluates total, natural and added sugar under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Vitamins A, D, E, K and C	Chem-Tech SOP	Measures or evaluates vitamins a, d, e, k and c under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Benzoic Acid	Chem-Tech SOP	Measures or evaluates benzoic acid under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Sorbic Acid	Chem-Tech SOP	Measures or evaluates sorbic acid under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Aspartame	Chem-Tech SOP	Measures or evaluates aspartame under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Saccharin	Chem-Tech SOP	Measures or evaluates saccharin under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Acesulfame	Chem-Tech SOP	Measures or evaluates acesulfame under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Aerobic Plate Count	IS 5402	Measures or evaluates aerobic plate count under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
E. coli	IS 5887 Part I	Assesses the selected microbiological indicator or organism group.	Detection or a higher count indicates greater microbiological loading; interpretation must follow the applicable water-use requirement and sampling controls.	Inhouse
Coliform	IS 5401	Assesses the selected microbiological indicator or organism group.	Detection or a higher count indicates greater microbiological loading; interpretation must follow the applicable water-use requirement and sampling controls.	Inhouse
Staphylococcus aureus	IS 5887 Part II	Measures or evaluates staphylococcus aureus under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Yeast and Mould	IS 5403	Measures or evaluates yeast and mould under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Shigella	IS 5887 Part VII	Measures or evaluates shigella under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse

Food & water

Water

Physical, chemical, organic-load and microbiological parameters for drinking, process and waste water.

Source: Food, Food Products and Water Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Appearance	APHA 2110:2017 / CTP-T-112	Records the visible condition and colour of the submitted sample.	Unexpected haze, sediment, separation or colour change may indicate contamination, degradation or sample-handling effects; compare with the product reference.	Inhouse
Elemental Analysis	ASTM D1976 / CTP-T-125	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Ammonia / Ammoniacal Nitrogen	APHA 4500-NH3-C / IS 3025 Part 34	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Nitrate	APHA 4500-NO3-B / IS 3025 Part 34	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Nitrite	APHA 4500-NO2-B / IS 3025 Part 34	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Calcium	APHA 3500-Ca-B	Measures hardness-forming minerals or their contributing ions.	Higher values can increase scaling tendency; very low values may be relevant to corrosivity or treatment control depending on the application.	Inhouse
Total Hardness	APHA 2340-B,C / IS 3025 Part 21	Measures hardness-forming minerals or their contributing ions.	Higher values can increase scaling tendency; very low values may be relevant to corrosivity or treatment control depending on the application.	Inhouse
Chloride	APHA 4500-Cl-B,D / IS 3025 Part 32	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Conductivity	APHA 2510-B / IS 3025 Part 14	Assesses ionic or dissolved-material content in water.	A higher result generally indicates more dissolved ionic material; significance depends on the water source, treatment and intended use.	Inhouse
Dissolved Oxygen	APHA 4500-O-B,C / IS 3025 Part 38	Measures oxygen dissolved in the water sample.	Lower values may indicate oxygen demand or limited aeration; higher values reflect greater oxygen availability under the sampling conditions.	Inhouse
Fluoride	APHA 4500-F-D / IS 3025 Part 60	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Free Residual Chlorine	APHA 4500-Cl-B / IS 3025 Part 26	Measures disinfectant residual present at the sampling point.	A low result may indicate insufficient residual, while a high result may affect acceptability or process use; compare with the applicable requirement.	Inhouse
Oil and Grease	APHA 5520-B:2017 / IS 3025 Part 39	Assesses organic, oxidisable or hydrocarbon-related loading in water.	A higher result indicates greater loading under the selected method and may affect treatment, discharge or process suitability.	Inhouse
pH	APHA 4500-H+-B / IS 3025 Part 11	Measures acidity or alkalinity of the sample under the selected procedure.	A result above or below the required range may affect treatment control, corrosion, scaling, process suitability or product conformity.	Inhouse
Sulphate	APHA 4500-SO4-E / IS 3025 Part 24	Quantifies the selected dissolved ion or nutrient-related parameter.	A higher or lower result is assessed against the identified water-use requirement and may indicate source, treatment, contamination or process effects.	Inhouse
Total Alkalinity	APHA 2320-B / IS 3025 Part 23	Reports selected wear, contaminant, additive or composition-related elements.	Higher or lower values require comparison with formulation, metallurgy, process inputs and trend history; one result alone does not establish the source.	Inhouse
Total Dissolved Solids	APHA 2540-C / IS 3025 Part 16	Assesses ionic or dissolved-material content in water.	A higher result generally indicates more dissolved ionic material; significance depends on the water source, treatment and intended use.	Inhouse
Total Suspended Solids	APHA 2540-D / IS 3025 Part 17	Assesses suspended material or optical cloudiness in water.	A higher result indicates more suspended or light-scattering material and may signal inadequate clarification, contamination or process carryover.	Inhouse
Turbidity	APHA 2130-B / IS 3025 Part 10	Assesses suspended material or optical cloudiness in water.	A higher result indicates more suspended or light-scattering material and may signal inadequate clarification, contamination or process carryover.	Inhouse
Biochemical Oxygen Demand	IS 3025 Part 44	Assesses organic, oxidisable or hydrocarbon-related loading in water.	A higher result indicates greater loading under the selected method and may affect treatment, discharge or process suitability.	Inhouse
Chemical Oxygen Demand	IS 3025 Part 58	Assesses organic, oxidisable or hydrocarbon-related loading in water.	A higher result indicates greater loading under the selected method and may affect treatment, discharge or process suitability.	Inhouse
Microbial Examination	IS 1622	Assesses the selected microbiological indicator or organism group.	Detection or a higher count indicates greater microbiological loading; interpretation must follow the applicable water-use requirement and sampling controls.	Inhouse
Total and Faecal Coliform	IS 5401 Part 1	Assesses the selected microbiological indicator or organism group.	Detection or a higher count indicates greater microbiological loading; interpretation must follow the applicable water-use requirement and sampling controls.	Inhouse
E. coli	IS 5887 Part 1	Assesses the selected microbiological indicator or organism group.	Detection or a higher count indicates greater microbiological loading; interpretation must follow the applicable water-use requirement and sampling controls.	Inhouse
Total Organic Carbon	APHA 23rd Edition 5310B	Assesses organic, oxidisable or hydrocarbon-related loading in water.	A higher result indicates greater loading under the selected method and may affect treatment, discharge or process suitability.	Inhouse

Product compliance

Restricted-substance parameters and published IEC methods for product-compliance investigations.

Source: Product Compliance Test List

Test / parameter	Published method	Technical purpose	Interpretation context	Capability
Lead (Pb)	IEC 62321-5:2013 / IEC 62321-3:2013 (XRF)	Measures or evaluates lead (pb) under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Cadmium (Cd)	IEC 62321-5:2013 / IEC 62321-3:2013 (XRF)	Measures or evaluates cadmium (cd) under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Mercury (Hg)	IEC 62321-4:2017 / IEC 62321-3:2017 (XRF)	Measures or evaluates mercury (hg) under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Hexavalent Chromium (CrVI)	IEC 62321-7-2:2017 / IEC 62321-3:2017 (XRF)	Measures or evaluates hexavalent chromium (crvi) under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Polybrominated Biphenyls (PBB)	IEC 62321-6:2015	Measures or evaluates polybrominated biphenyls (pbb) under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
Polybrominated Diphenyl Ethers (PBDE)	IEC 62321-6:2015	Measures or evaluates polybrominated diphenyl ethers (pbde) under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
DEHP	IEC 62321-8:2015	Measures or evaluates dehp under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
BBP	IEC 62321-8:2015	Measures or evaluates bbp under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
DBP	IEC 62321-8:2015	Measures or evaluates dbp under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse
DIBP	IEC 62321-8:2015	Measures or evaluates dibp under the published method.	A higher or lower result is interpreted against the applicable specification, sample type and available reference data; direction alone does not establish conformity.	Inhouse

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