Lubricants & fluids
Quenching oil
Condition and heat-treatment performance indicators for fresh and in-service quenching oils.| 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 |