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ASTM D7342 - 20
Standard Test Method for Prolonged Worked Stability of Lubricating Grease in Presence of Water (Water Stability Test)
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Significance and Use
5.1 It is known that contamination by water can affect the shear stability of some greases in service. This test method is widely used to determine the wet shear stability of greases in service. Many grease specifications require these procedures as a wet shear stability test. No accurate correlation is established between the test results and wet shear stability of grease in actual service.
1. Scope
1.1 This test method covers a procedure for determining the shear stability of lubricating grease in the presence of water (wet shear stability) by a full scale grease worker. This test method is also known as the water stability test.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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
D217 Test Methods for Cone Penetration of Lubricating Grease
D1193 Specification for Reagent Water
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
ICS Code
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code
UNSPSC Code 15121902(Grease)
Referencing This Standard
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DOI: 10.1520/D7342-20
Citation Format
ASTM D7342-20, Standard Test Method for Prolonged Worked Stability of Lubricating Grease in Presence of Water (Water Stability Test), ASTM International, West Conshohocken, PA, 2020, www.astm.org
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