1.1 本规范涵盖厚度范围为10至75μm（0.4至3.0密耳）的定向聚丙烯（OPP）薄膜。 1.2 该膜可以包含着色剂、稳定剂或其他添加剂，并且可以涂覆以改善性能（热密封性、气体渗透性等）。 1.3 可以对薄膜进行退火（热定型），以减少暴露在热环境中时的不受限制的线性收缩和收缩张力。 1.4 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。 1.5 以下安全危险警告仅适用于测试方法部分第节 7. ，本规范: 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。 注1: 没有已知的ISO等效于本标准。 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 oriented polypropylene (OPP) film in the thickness range from 10 to 75 μm (0.4 to 3.0 mils). 1.2 The film can contain colorants, stabilizers, or other additives, and can be coated for the improvement of performance properties (heat sealability, gas permeability, and so forth). 1.3 The film can be annealed (heat-set) to reduce the unrestrained linear shrinkage and shrink tension on exposure to heat. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5 The following safety hazards caveat pertains only to the test methods portion, Section 7 , 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. Note 1: There is no known ISO equivalent to this standard. 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.