Home > Classroom

  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating greaseGLYCERIN (QUANTITATIVE)25. Scope25.1 This test method is intended for the determination of free glycerin in grease and for glycerin present as fat in grease. The test method is applicable to greases containing 0.03 to 1.6 % of glycerin ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating greaseWATER24. Procedure24.1 Determine water in accordance with Test Method D95. For solvent, use the petroleum distillate described in 5.1.2 of Test Method D95.24.2 Calculate and report water as percent by weight in accordance with Test Method ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating greaseFREE ALKALI AND FREE ACID21. Free Alkali21.1 Weigh a 10 to 30-g sample of the grease in a small beaker, dissolve as completely as possible in 75 mL of n-hexane by stirring with a spatula, wash the mixture into a 250-mL Erlenmeyer flask ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating greaseINSOLUBLES, SOAP, FAT, PETROLEUM OIL, AND UNSAPONIFIABLE MATTER12. Choice of Test Method12.1 Examine greases containing residuum, asphaltic oils and asphalt, tars, and so forth, using Test Method II, as these ingredients usually cause ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating greaseASH DETERMINATION7. General7.1 The percentage of ash shall not be included in the total of the analysis.NOTE 3 - The determination of the total ash should not in general be regarded as of any great importance. It is, however, sometimes ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating grease5. Reagents5.1 Purity of Reagents - Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all reagents shall conform to the specifications of the Committee on Analytical Reagents of the American ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating grease4. Significance and Use4.1 These test methods can be used to identify and estimate the amount of some of the constituents of lubricating greases. These test methods are applicable to many, but not all, greases.4.2 Composition should not ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating grease3. Terminology3.1 Definitions:3.1.1 asphalt, n - a dark brown-to-black cementitious material in which the predominating constituents are bitumens.3.1.1.1 Discussion - Asphalt can be a natural product or a material obtained from petroleum ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating grease1. Scope1.1 These test methods for analysis cover greases of the conventional type, which consist essentially of petroleum oil and soap. The constituents that can be determined are soap, unsaponifiable matter (petroleum oil, and so forth), ...
  • ASTM D4628 for barium, calcium, magnesium and zinc in unused lubricating oils ASTM D4628 for barium, calcium, magnesium and zinc in unused lubricating oilsASTM D4628 standard test method for analysis of barium, calcium, magnesium, and zinc in unused lubricating oils by atomic absorption spectrometry15. Report15.1 Report concentrations greater than 0.1 % to three significant figures.15.2 ...