1.1本规范涵盖用作除冰器和道路施工或维护目的的氯化钠。 1.2以国际单位制表示的数值应视为标准。 1.3为了确定是否符合本规范，化学分析值应四舍五入至最接近的0.1%，分级值应根据规程E29中的四舍五入方法四舍五入至最接近的1%。 1.4本规范的文本引用了提供解释材料的注释和脚注。这些注释和脚注不应视为本规范的要求。 1.5以下预防性警告仅适用于本规范附录A1中的试验方法: 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 sodium chloride intended for use as a deicer and for road construction or maintenance purposes. 1.2 The values stated as SI units are to be regarded as the standard. 1.3 For purposes of determining conformance to this specification, values for chemical analysis shall be rounded to the nearest 0.1 %, and values for grading shall be rounded to the nearest 1 %, in accordance with the rounding method in Practice E29. 1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the specification. 1.5 The following precautionary caveat pertains only to the test method in Annex A1, of this specification: 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.