1.1 本规范涵盖了用作除冰剂和道路建设或维护目的的氯化钠。 1.2 以SI单位表示的值应被视为标准。 1.3 为了确定是否符合本规范，化学分析值应按照实际四舍五入的方法四舍五入到最接近的0.1%，分级值应四舍五入到最接近的1% E29 . 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被视为规范的要求。 1.5 以下注意事项仅适用于中的试验方法 附件A1 本规范: 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 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.