1.1 本指南涵盖了在金属、矿石和相关材料的产品规范标准中规定成分要求和确定适当采样和定量分析测试方法的程序。其目的不是取代或冲突单个产品规范或涵盖产品广泛分类的标准，如测试方法 A751型 . 1.2 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 4.1 本指南旨在帮助编写或修订黑色金属和有色金属、矿石及相关材料的成分规范、采样实践和测试方法。它针对的是那些必须适当协调成分规范、采样实践和测试方法的领域。其使用将有助于确保成分要求得到明确定义，并且采样实践和测试方法可用于满足产品规范。 4.2 本指南并不试图定义应控制哪些元素、应在何处采样或应如何分析。这些项目在规范等标准中进行了说明 A276型 、方法、实践和术语 A751型 ，试验方法 E34 实践 E255年 ，试验方法 E342 和试验方法 E350 . 4.3 ASTM采样实践和测试方法的主要目的是提供广泛接受和测试的方法，用于满足ASTM产品规范。尽管人们认识到个别实验室可以自由使用其他方法，但ASTM批准的方法的可用性对于仲裁目的和证明配备适当的实验室可以进行所需的测量至关重要。 4.4 推荐用于测试给定产品的抽样实践和测试方法最容易由规范编写委员会和对产品具有管辖权的方法编写委员会共同选择。 当现有的抽样或测试方法不符合新产品规范标准的要求时，规范编写委员会应要求方法编写委员会制定所需的标准。ASTM E01委员会负责测试方法和实践，涵盖大多数金属、矿石和相关材料的采样和分析。

1.1 This guide covers procedures for specifying compositional requirements and identifying appropriate sampling and quantitative analysis test methods to be referenced in product specification standards for metals, ores, and related materials. It is not intended to replace or conflict with either individual product specifications or standards covering broad classifications of products such as Test Methods A751 . 1.2 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. ====== Significance And Use ====== 4.1 This guide is intended to assist those writing or revising compositional specifications, sampling practices, and test methods for ferrous and non-ferrous metals, ores, and related materials. It is directed toward those areas that must be addressed to properly coordinate compositional specification, sampling practice, and test methods. Its use will help ensure that compositional requirements are clearly defined and that sampling practices and test methods are available to meet product specifications. 4.2 This guide does not attempt to define which elements should be controlled, where samples should be taken, or how they should be analyzed. These items are addressed in standards such as Specification A276 , Methods, Practices and Terminology A751 , Test Method E34 , Practice E255 , Test Method E342 , and Test Methods E350 . 4.3 A primary purpose for ASTM sampling practices and test methods is to provide widely-accepted and tested methodology for use in meeting ASTM product specifications. Although it is recognized that individual laboratories are free to use other methods, the availability of ASTM approved methodology is essential for referee purposes and to demonstrate that properly equipped laboratories can make the required measurements. 4.4 Sampling practices and test methods to be recommended for use in testing a given product are most easily selected cooperatively by the specification-writing and the methods-writing committees that have jurisdiction over the product. When existing sampling or test methods do not meet the needs of the new product specification standard, the specification-writing committee should request that the methods-writing committee develop the required standards. ASTM Committee E01 is responsible for test methods and practices covering the sampling and analysis of most metals, ores, and related materials.