1.1 本规范涵盖了一组要求，当与ASTM发布的以下铸铁规范结合使用时，这些要求是强制性要求: ASTM规范 A47/A47M A48/A48M 197米 A220/A220M A278/A278米 A319 A395/A395M A436 439米/439米 a18/a18m a32/a32m A536 571米/571米 A823 A842 874/874m 397米/897米 1.2 本规范还涵盖了一组补充要求，这些要求可能适用于本文所述的上述规范。这些仅在需要额外测试或检查时使用，并且仅在买方在订单中单独指定时适用。 1.3 单个材料规范和本通用规范的要求应按顺序执行。 1.4 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers a group of requirements that are mandatory requirements when used in conjunction with the following iron casting specifications issued by ASTM: ASTM Specification A47/A47M A48/A48M A197/A197M A220/A220M A278/A278M A319 A395/A395M A436 A439/A439M A518/A518M A532/A532M A536 A571/A571M A823 A842 A874/A874M A897/A897M 1.2 This specification also covers a group of supplementary requirements which may be applied to the above specifications as indicated herein. These are provided for use when additional testing or inspection is desired and apply only when specified individually by the purchaser in the order. 1.3 The requirements of the individual material specification, and this general specification, shall prevail in the sequence named. 1.4 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. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.