Home > Classroom

  • Viscosity Classification - Grease Classifications Viscosity Classification - Grease ClassificationsNLGI Grease Consistency ClassificationThe commonly used grease consistency classification is that established in the USA many years ago by the National Lubricating Grease Institute (NLG). This classifies greases solely in terms of their hardness or softness; ...
  • Viscosity Classifications - Industrial Lubricant Classifications Viscosity Classifications - Industrial Lubricant ClassificationsISO (International Standards Organisation) viscosity classificationThe ISO viscosity classification uses mm2/s (cSt) units and relates to viscosity at 40oC. It consists of a series of 18 viscosity brackets between 1.98 mm2/s and 1650 mm2/s, ...
  • ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils10. Precision and Bias (Test Method A)10.1 The precision of this test method is not known to have been obtained in accordance with currently accepted guidelines (for example, in Committee D02 Research Report RR:D02-1007).10.2 ...
  • ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils6. Preparation of Apparatus6.1 Cleaning of Oxidation Cells - Clean glassware with a suitable cleaning solution. (Warning - Causes severe burns. A recognized carcinogen. Strong oxidizer, contact with other material may cause ...
  • ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils5. Apparatus5.1 Heating Bath or Block, thermostatically controlled, capable of maintaining the oil sample in the test tube at a temperature of 95 more or less 0.2°C (Test Method A), or 121 more or less 1.0°C (Test Method B) ...
  • ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils ASTM D2893 for oxidation characteristics of extreme-pressure lubrication oils1. Scope1.1 These test methods (A and B) cover the determination of the oxidation characteristics of extreme-pressure fluid lubricants, gear oils, or mineral oils.NOTE 1 - The changes in the lubricant resulting from these test ...
  • ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometer ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometerASTM D2983 standard test method for low-temperature viscosity of lubricants measured by Brookfield Viscometer9. RPM Selection9.1 Because many lubricant fluids are non-Newtonian at low temperatures, the rpm selected for a measurement ...
  • ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometer ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometerASTM D2983 standard test method for low-temperature viscosity of lubricants measured by Brookfield Viscometer8. Procedure8.1 Preparation of the Bath:8.1.1 Set the test temperature of the cold cabinet, monitor the temperature ...
  • ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometer ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometerASTM D2983 standard test method for low-temperature viscosity of lubricants measured by Brookfield Viscometer6. Apparatus6.1 Brookfield Viscometer - Analog Model LVT or more recent digital models (for example, LVDV-II+) are ...
  • ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometer ASTM D2983 for low-temperature viscosity of lubricants by Brookfield viscometerASTM D2983 standard test method for low-temperature viscosity of lubricants measured by Brookfield Viscometer4. Summary of Test Method4.1 A lubricant fluid sample is preheated, allowed to stabilize at room temperature, and ...