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Significance and Use
4.1 Corrosiveness of a fluid to a bimetallic couple is one of the properties used to evaluate hydraulic or lubricating fluids. It is an indicator of the compatibility of a fluid with a brass on steel galvanic couple at ambient temperature and 50 % relative humidity.
1.1 This test method covers the corrosiveness of hydraulic and lubricating fluids to a bimetallic galvanic couple.
Note 1: This test method replicates Fed-Std No. 791, Method 5322.2. It utilizes the same apparatus, test conditions, and evaluation criteria, but it describes test procedures more explicitly.
1.2 The values stated in SI units are to be regarded as standard.
1.2.1 Exception—The values given in parentheses are for information only.
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 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.
A322 Specification for Steel Bars, Alloy, Standard Grades
Federal StandardsFED-STD-791, Method 5322.2 Corrosiveness of Oil on a Bimetallic Couple Available online at ASSIST Quicksearch (http://quicksearch.dla.mil).
ICS Number Code 75.120 (Hydraulic fluids)
UNSPSC Code 15121500(Lubricating preparations)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D6547-16, Standard Test Method for Corrosiveness of Lubricating Fluid to Bimetallic Couple, ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top