ASTM-D3340 › Standard Test Method for Lithium and Sodium in Lubricating Greases by Flame Photometer (Withdrawn 2013)
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Scope
1.1 This test method covers determination of the lithium and sodium content of lubricating greases by means of a flame photometer.
1.2 A multi-element analysis method for greases, which includes the measurement of lithium and sodium concentrations using inductively couple plasma-atomic emission spectroscopy (ICP-AES), is available in Test Method D 7303
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.The preferred units are mass %.
1.4 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.
Significance and Use
Lubricating greases can contain the lithium soap of hydroxy stearic acid or the sodium soap of various fatty acids as thickeners. The determination of total lithium or total sodium is a measure of the amount of thickener in the grease.
Keywords
flame photometer; lithium content; lubricating grease; sodium content; thickener; Flame emission spectrometry; Lithium content; Lubricating grease; Sodium content--petroleum products; Spectrophotometry--flame photometry; ICS Number Code 75.100 (Lubricants, industrial oils and related products)
To find similar documents by ASTM Volume:
05.01 (Petroleum Products and Lubricants (I): D56 - D3710)
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Document Number
ASTM-D3340-07
Revision Level
2007 EDITION
Status
Cancelled
Modification Type
Withdrawn
Publication Date
Dec. 1, 2007
Document Type
Test Method
Page Count
3 pages
Committee Number
D02.03