Designation: A 751 - 08 INTERNATIONAI Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products This standard is issued under the fixed designation A 751; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A This standard has been approved for use by agencies of the Department of Defense. INTRODUCTION These test methods, practices, and terminology were prepared to answer the need for a single document that would include all aspects of obtaining and reporting the chemical analysis of steel stainless steel.and related alloys.Such subjects as definitionsof terms and product(check) analysis variations(tolerances)requiredclarification.Requirements for sampling,meeting specifiedlimits,and treatment of data usually were not clearly established in product specifications. Itis intended thatthesetestmethods,practices, andterminology will contain all requirements for the determination of chemical composition of steel, stainless steel, or related alloys so that product specifications will need contain only special modifications and exceptions. 1. Scope* 2. Referenced Documents 1.1 These test methods, practices, and terminology cover 2.1. ASTM Standards: 2 definitions, reference methods, practices, and guides relating to E 29 Practice for Using Significant Digits in Test Data to the chemical analysis of steel, stainless steel, and related Determine Conformance with Specifications alloys. It includes both wet chemical and instrumental tech- E 30 Test Methods for Chemical Analysis _of Steel, Cast niques. Iron, Open-Hearth Iron, and Wrought Iron 1.2 Directions are provided for handling chemical require- E 50 Practices for Apparatus, Reagents, and Safety Consid- ments, product analyses, residual elements, and reference erations for Chemical Analysis of Metals, Ores, and standards, and for the treatment and reporting of chemical Related Materials analysis data. E 59 Practice for Sampling Steel and Iron for Determination 1.3 These test methods, practices, and terminology apply of Chemical Composition only to those product standards which include these test E 60 Practice for Analysis of Metals, Ores, and Related methods, practices, and terminology, or parts thereof, as a Materials byMolecular Absorption Spectrometry requirement. E 212 Test Method for Spectrographic Analysis of Carbon 1.4 In cases of conflict, the product specification require- and Low-Alloy Steel by the Rod-To-Rod Technique ments shall take precedence over the requirements of these test E 293 Test Method for Spectrographic Determination of methods,practices,andterminology. Acid-Soluble Aluminum in Low-Alloy Steel by the Solu- 1.5 Attention is directed to ISO/IEC 17025 when there may tion Technique be a need for information on criteria for evaluation of testing E 322 Test Method for X-Ray Emission Spectrometric laboratories. Analysis of Low-AlloySteels andCastIrons 1.6 This standard does not purport to address all of the E327TestMethodfor Optical EmissionSpectrometric safetyconcerns, if any, associated with its use. It is the Analysis of Stainless Type 18-8 Steels by the Point-To- responsibility of the user of this standard to establish appro- Plane Technique priate safety and health practices and determine the applica- E 350 Test Methods for Chemical Analysis of Carbon Steel. bility of regulatory limitations prior to use. Low-AlloySteelSilicon Electrical Steel,IngotIron,and Wrought Iron IThese test methods, practices, and terminology are under the jurisdiction of ASTM Committee AO1 on Steel, Stainless Steel and Related Alloys and are the 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or direct responsibility of Subcommittee A01.13 on Mechanical and Chemical Testing contact ASTM Customer Service at [email protected]. For Annual Book of ASTM and Processing Methods of Steel