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ASTM-D128:2008 Edition

ASTM-D128:2008 Edition

$44.96

D128-98(2008) Standard Test Methods for Analysis of Lubricating Grease

Published By Publication Date Number of Pages
ASTM 2008 11
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ASTM D128-98-Reapproved2008

Historical Standard: Standard Test Methods for Analysis of Lubricating Grease

ASTM D128

Scope

1.1 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), water, free alkalinity, free fatty acid, fat, glycerin, and insolubles.

Note 1—Any of the test methods described herein are best used by an experienced grease analyst who may also be able to make appropriate adaptations of the techniques as occasion requires.

1.2 A supplementary test method is provided in Appendix X1. This test method is intended primarily for application to greases containing thickeners that are essentially insoluble in n-hexane, and to greases that cannot be analyzed by conventional methods because of the presence of such constituents as nonpetroleum fluids or nonsoap-type thickeners, or both. In some cases, these constituents can react with strong acid or alkaline solutions.

1.3 These test methods appear in the following order:

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Keywords

analysis; extraction; fat content; fluid content; free alkali content; free fatty acid content; glycerin content; insolubles content; lubricating grease; petroleum oil content; soap content; Soxhlet apparatus; thickener content; water content; Acidity, alkalinity, pH–petroleum products; Ash–petroleum products; Asphaltic and tarry matter content; Fat content; Fatty acids–tests; Fluid constituent content; Glycerin; Glycerin content; n-Hexane-insoluble matter content; Insoluble carbonates content; Insoluble matter content–petroleum products; Lubricating grease; Molecular weight; Neutralization numbers; Oils; Soap content; Unsaponifiable matter content; Water analysis–petroleum products testing

ICS Code

ICS Number Code n/a

DOI: 10.1520/D0128-98R08

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
3 Significance and Use
Reagents
TABLE 1
4 Sample
General
Rapid Routine Test Method
Alternative Test Method
Qualitative Examination
5 Quantitative Examination
Choice of Test Method
Insolubles
FIG. 1
6 Soap
7 Calculation and Report
Glycerin (Qualitative)
Fat
8 Petroleum Oil
Dark Greases
Asphalt and Tarry Matter
Free Alkali
Insoluble Carbonates
Free Acid
Procedure
Scope
Summary of Test Method
9 Procedure
Procedure
Calculation
Precision and Bias
Keywords
10 X1. SUPPLEMENTARY TEST METHOD FOR THE ANALYSIS OF LUBRICATING GREASES
X1.1 Scope
X1.2 Summary of Test Method
X1.3 Terminology
X1.4 Apparatus
X1.5 Procedure
X1.6 Calculations

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