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Viscosity @ 40°C or 100°C
Definition:
Viscosity @ 40°C or 100°C measures a lubricant's resistance to flow (fluid thickness) at temperature and is considered an oil's most important physical property. Depending on lube grade, viscosity is tested at 40 and/or 100° Celsius.
Standard Test Method Used:
Reporting Measurement:
cSt (Centistokes)
Amount of Sample Needed:
2 mL
Test Limitation:
Accuracy diminishes with lubricants above ISO 1000 grade.
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