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Formerly under the jurisdiction of A05 on Metallic-Coated Iron and Steel Products, this test method was withdrawn in October 2015. This standard is being withdrawn without replacement due to its limited use by industry.
This test method covers the determination of the weight and composition of coating on terne sheet by the triple-spot method.
1.2 If the percent of tin in the coating is required, stripping with hydrobromic acid-bromine is the preferred procedure. Steel with a predeposited electrolytic nickel coating requires a two-stage stripping method to determine total tin content. If both the tin and lead percentage are required, stripping with sulfuric acid is recommended, but caution is advised since the sulfuric acid procedure has been found to produce high tin results (see Section 11).
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. For specific hazards statements, see Section 5, Note 2, and Section 17.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A308/A308M Specification for Steel Sheet, Terne (Lead-Tin Alloy) Coated by the Hot-Dip Process
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E57 Methods for Chemical Analysis of White Metal Bearing Alloys
E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals
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ASTM A309-01(2012), Standard Test Method for Weight and Composition of Coating on Terne Sheet by the Triple-Spot Test (Withdrawn 2015), ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top