1.1本规范涵盖指定的镁合金砂铸件，如所示。 1.2以英寸-磅为单位的数值应视为标准值。括号中的SI值仅供参考。 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。

1.1 This specification covers magnesium-alloy sand castings designated as shown in. 1.2 The values stated in inch-pound units are to be regarded as the standard. The SI values in parentheses are provided for information only. 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.