6Īnnex-Guide to AWS Specification for Welding Shielding Gases A1. 3 Marking of High-Pressure Cylinders, Liquid Containers, and Bulk Vessels. Part C-Manufacture, Packaging, and Identification 11. Summary of Tests.2 Retest.2 Chemical Analysis. Part B-Tests, Procedures, and Requirements 7. 2 Units of Measure and Rounding-O ff Procedure. Normative References.1 Classification.1 Acceptance.1 Certification. Since these are not equivalent, each system must be used independently of the other.ĥ50 N.W. Customary Units and the International System of Units (SI). This specification makes use of both U.S. Other topics include testing procedures, package marking, and general application guidelines. Classification designators for both single and multicomponent gases are introduced. Specification for Welding Shielding Gases Prepared by AWS Committee on Filler Metals Under the Direction of AWS Technical Activities Committee Approved by AWS Board of DirectorsĪbstract This specification for welding shielding gases specifies minimum requirements for the composition and purity of the most popular single-component shielding gases. Key Words- Argon, carbon dioxide, helium, hydrogen, nitrogen, oxygen, shielding gases, welding gasesĪpproved by American National Standards Institute December 8, 1997 Specification for Welding Shielding Gases ANSI/AWS A5.32/A5.32M-97 An American National Standard
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