1.1 本规程旨在促进使用者、雇主、员工和参与需要化学防护服的项目的其他人员正确选择、使用、维护和理解化学防护服（CPC）的局限性，从而限制潜在的有害和不必要的皮肤接触。 1.2 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。 1.3 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。 ====意义和用途====== 4.1 本规程介绍了构成化学防护服（CPC）计划的要素以及制定化学防护服选择和使用计划时使用的条件。遵守这一做法需要为任何CPC的使用开发一个书面程序。 4.2 尽管关于蒸汽和液体暴露于皮肤的毒性还有很多待确定，但本规程概述了在选择CPC之前进行危害风险评估的必要信息和建议方法（见规程） F1154 ). 4.3 本规程不涉及测试CPC或获取进行CPC评估所依据的数据的各种方法。 这些测试方法在第节中列出 2. 这种做法。 4.4 本规程不包括可能适用于防止核辐射、放射性污染或微生物的个人防护的建议，或适用于为保护特定环境免受化学品、颗粒物或可能由佩戴者产生的生物物质进入而穿戴的衣服。 4.5 当其他控制手段不可用时，应使用CPC。其主要用途应限于以下方面: 4.5.1 维护操作； 4.5.2 混乱或紧急情况； 4.5.3 当工程控制不可行或正在安装时，使用替代工程控制； 4.5.4 当无法完全控制危险时，补充可行的工程控制； 和 4.5.5 在工程控制失败的情况下使用。 4.6 在所有控制情况下，应强调工程控制和材料替代是第一道防线，因为CPC的有效使用取决于工人的合规性、适当的选择、质量控制和其他变量，这些变量可能是整个控制过程中的薄弱环节。

1.1 This practice is intended to promote the proper selection, use, maintenance, and understanding of the limitations of chemical protective clothing (CPC) by users, employers, employees, and other persons involved in programs requiring CPC, thereby limiting potentially harmful and unnecessary skin exposures. 1.2 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. 1.3 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. ====== Significance And Use ====== 4.1 This practice presents those elements that constitute a chemical protective clothing (CPC) program and conditions to be used in establishing a program for the selection and use of CPC. Adherence to this practice requires that a written program be developed for any use of CPC. 4.2 Although much remains to be determined regarding the toxicity of vapor and liquid exposure to the skin, this practice outlines the essential information necessary and suggested methods for hazard risk assessment prior to the selection of CPC (see Practices F1154 ). 4.3 This practice does not address the various methods for testing CPC or obtaining the data upon which CPC assessments are made. These test methods are listed in Section 2 of this practice. 4.4 This practice does not include recommendations that may apply to personal protection from nuclear radiation, radioactive contamination, or microbiological organisms, or to clothing that is worn to protect a particular environment from the entry of chemicals, particles, or living matter that may arise from the wearer. 4.5 CPC should be used when other means of control are not available. Its major uses should be limited to the following: 4.5.1 Maintenance operations; 4.5.2 Upset or emergency conditions; 4.5.3 Use in lieu of engineering controls when they are not feasible or are being installed; 4.5.4 Supplementing feasible engineering controls when they fail to control the hazard completely; and 4.5.5 Use in the event that engineering controls fail. 4.6 Engineering controls and substitution of materials should be stressed as the first line of defense in all control situations since effective use of CPC depends on worker compliance, proper selection, quality control, and other variables that may prove to be weak links in an overall control process.