Home > Classroom

  • ASTM D874 method for sulfated ash from lubricating oils and additives ASTM D874 method for sulfated ash from lubricating oils and additives4. Summary of Test Method4.1 The sample is ignited and burned until only ash and carbon remain. After cooling, the residue is treated with sulfuric acid and heated at 775°C until oxidation of carbon is complete. The ash is then cooled, ...
  • ASTM D874 method for sulfated ash from lubricating oils and additives ASTM D874 method for sulfated ash from lubricating oils and additives1. Scope1.1 This test method covers the determination of the sulfated ash from unused lubricating oils containing additives and from additive concentrates used in compounding. These additives usually contain one or more of the following ...
  • ASTM D2140 for carbon-type composition of insulating oils ASTM D2140 for carbon-type composition of insulating oilsASTM D2140 standard test method for carbon-type composition of insulating oils of petroleum origin9. Report9.1 Report the following information:9.1.1 Designation of test method used (D2140),9.1.2 Sample identification.9.1.3 Percent of aromatic ...
  • ASTM D2140 for carbon-type composition of insulating oils ASTM D2140 for carbon-type composition of insulating oilsASTM D2140 standard test method for carbon-type composition of insulating oils of petroleum origin6. Apparatus6.1 No specific apparatus is required for use by this test method. However, to obtain the VGC and ri parameters of Fig. 1, certain measurements ...
  • ASTM D2140 for carbon-type composition of insulating oils ASTM D2140 for carbon-type composition of insulating oilsASTM D2140 standard test method for carbon-type composition of insulating oils of petroleum origin4. Summary of Test Method4.1 A sample of the oil to be analyzed by this method is first tested to determine its viscosity, density and relative density ...
  • ASTM D2140 for carbon-type composition of insulating oils ASTM D2140 for carbon-type composition of insulating oilsASTM D2140 standard test method for carbon-type composition of insulating oils of petroleum origin1. Scope1.1 This test method may be used to determine the carbon-type composition of mineral insulating oils by correlation with basic physical properties. ...
  • ASTM D1169 for specific resistance (resistivity) of insulating liquids ASTM D1169 for specific resistance (resistivity) of insulating liquidsASTM D1169 standard test method for specific resistance (resistivity) of electrical insulating liquids28. Report28.1 Report the following information:28.1.1 Specific resistance (resistivity) of the sample,28.1.2 Type of cell used,28.1.3 ...
  • ASTM D1169 for specific resistance (resistivity) of insulating liquids ASTM D1169 for specific resistance (resistivity) of insulating liquidsASTM D1169 standard test method for specific resistance (resistivity) of electrical insulating liquidsPERMISSIBLE MODIFICATIONS WHEN MAKING ROUTINE TESTS19. General19.1 When it is desired to get an approximation of the resistivity ...
  • ASTM D1169 for specific resistance (resistivity) of insulating liquids ASTM D1169 for specific resistance (resistivity) of insulating liquidsASTM D1169 standard test method for specific resistance (resistivity) of electrical insulating liquidsPROCEDURE FOR MAKING REFEREE TESTS17. Preparation of Test Specimen and Filling Test Cell17.1 Use only a three-terminal cell for these ...
  • ASTM D1169 for specific resistance (resistivity) of insulating liquids ASTM D1169 for specific resistance (resistivity) of insulating liquidsASTM D1169 standard test method for specific resistance (resistivity) of electrical insulating liquids6. Instrumentation6.1 Instrumentation listed in Test Methods D257 is suitable, with the exception of the Voltage Rate-of-Change Method. ...