Lubricants & fluids
Thermic fluid
Thermal-degradation, volatility, acidity and contamination indicators for heat-transfer fluids.| 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 |