1.1 本规范涵盖了通常作为液体存在于加压金属容器中的工业级氯。 1.2 以下内容适用于本规范中的所有规定限值:为了确定是否符合本规范，应根据修约实践方法，将用于表示规范限值的最后一个右手数字中的观察值或计算值修约为“最接近的单位” E29年 . 1.3 单位- 以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考。 1.4 查看当前的安全数据表（SDS），了解有关毒性、急救程序、处理和安全预防措施的详细信息。 1.5 以下安全隐患警告仅适用于第节中列出的试验方法 3. 和 4. . 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、健康和环境实践，并确定监管限制的适用性。 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》中确立的国际公认标准化原则制定的。

1.1 This specification covers industrial grade chlorine normally available as a liquid in pressurized metal containers. 1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29 . 1.3 Units— The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling and safety precautions. 1.5 The following safety hazards caveat pertains only to the test methods listed in Sections 3 and 4 . 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.