ASTM-D3340 2007(Redline)

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D3340-07 Standard Test Method for Lithium and Sodium in Lubricating Greases by Flame Photometer (Redline)

Published By	Publication Date	Number of Pages
ASTM	2007	4

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Category: ASTM

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Description

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.

1. 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1193 Specification for Reagent Water D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance D6792 Practice for Quality System in Petroleum Products and Lubricants Testing Laboratories D7303 Test Method for Determination of Metals in Lubricating Greases by Inductively Coupled Plasma Atomic Emission Spectrometry

Keywords

flame photometer; lithium content; lubricating grease; sodium content; thickener; Flame emission spectrometry; Lithium content; Lubricating

Additional information

Standard Title	D3340-07 Standard Test Method for Lithium and Sodium in Lubricating Greases by Flame Photometer (Redline)
Published Code	ASTM
Publication Date	2007
Pages Count	4

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ASTM-D3340 2007(Redline)

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