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Description of ASTM-A630 2009ASTM A630 - 03(2009)Standard Test Methods for Determination of Tin Coating Weights for Electrolytic Tin PlateActive Standard ASTM A630 | Developed by Subcommittee: A01.20 Book of Standards Volume: 01.06 ASTM A630Significance and Use This test method covers determination of the total tin in the sample tested and does not apportion the tin to one or the other side of the test specimen. The calculations appearing in Section 27 assume uniform distribution of tin over the two surfaces. This test method does not differentiate between free tin on the tinplate surface, tin combined with iron in the intermediate alloy layer, or tin alloyed with the steel as a residual tramp element. 1. Scope
1.1 These test methods include four methods for the determination of tin coating weights for electrolytic tin plate as follows:
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 and health practices and determine the applicability of regulatory limitations prior to use. 3.1 This test method covers the determination of tin coating weights on steel plate. 10.1 This test method may be used to determine not only the total tin coating weight but also to determine that part of the tin coating which is present as free tin and that part which is present in the alloyed form. 19.1 This test method covers the determination of the total weight of tin carried by a unit area of tinplate. 29.1 This test method is normally applicable to the determination of tin coating weights in the range of 0.50 to 1.50 lb of tin/bb. Note 4For the determination of the coating weights outside of this range, an iodate solution of appropriate concentration should be prepared so that suitable titrant volumes are obtained. For the determination of low tin coating mass in the range from 0.05 0.49 lb/bb, the number of sample specimens should be adjusted appropriately to maintain a minimum total tin mass equivalent to that present on a 0.50 lb/bb specimen. This test method cannot be used to test single spot tin mass for low tin coating material.
ASTM Standards A599/A599M Specification for Tin Mill Products, Electrolytic Tin-Coated, Cold-Rolled Sheet A623 Specification for Tin Mill Products, General Requirements A623M Specification for Tin Mill Products, General Requirements [Metric] A624/A624M Specification for Tin Mill Products, Electrolytic Tin Plate, Single Reduced A626/A626M Specification for Tin Mill Products, Electrolytic Tin Plate, Double Reduced D1125 Test Methods for Electrical Conductivity and Resistivity of Water Keywords Bendix method; Coating weight; Constant-current electrolytic method; Electrolytic tin plate; Electrostripping; Hot-dip (galvanized) coatings; Instrumental measurement--metals/alloys; Referee methods; Sellar's method; Tin coating weights; Tin mill products; Titration; ICS Code ICS Number Code 25.220.40 (Metallic coatings) DOI: 10.1520/A0630-03R09 ASTM International is a member of CrossRef. ASTM A630The following editions for this book are also available...
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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