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Significance and Use
4.1 The results obtained by this test are a useful guideline in determining the ability of water-miscible metalworking fluids to prevent or minimize rust under specific conditions. There is usually a relationship between the results of this test and a similar ability of the subject coolant to prevent rust on nested parts or in drilled holes containing chips, etc. It must be understood, however, that conditions, metal types, etc. found in practice will not correlate quantitatively with these controlled laboratory conditions. The procedure may not be able to differentiate between two products with poor rust control due to the wide spacing between test dilutions.
1.2.1 Exception—Note 1 contains inch-pound units since the drill sizes and feed rates do not have readily available metric equivalents.
ICS Number Code 75.080 (Petroleum products in general); 75.100 (Lubricants, industrial oils and related products)
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ASTM D4627-12, Standard Test Method for Iron Chip Corrosion for Water–Miscible Metalworking Fluids, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top