1.1 该试验方法涵盖了在柱状挤压条件下以恒定压缩变形率加载的吹塑热塑性容器的机械性能的测定，无论是在商业上还是在实验室中吹塑。 注1: 尽管该测试方法是专门为吹塑容器开发的，但通用程序也可应用于通过其他方式生产的合适几何形状的容器，例如热成型、注射成型等。 1.2 以国际单位制表示的数值应视为标准。 注2: 目前还没有与该标准等效的ISO。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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。 ===意义和用途====== 4.1 柱状压碎试验仅提供在与试验条件近似的条件下使用的吹塑热塑性容器的压碎性能信息。 4.2 柱的压碎特性包括压碎屈服载荷、压碎屈服载荷下的挠度、破坏时的压碎载荷和表观压碎刚度。由延展性较低的材料制成的吹塑热塑性容器可能因脆性断裂而无法破碎。在这种情况下，压碎屈服载荷等于失效时的压碎载荷。由韧性材料制成的吹塑热塑性容器在失效时并不总是表现出压碎载荷，尽管它们通常会提供压碎屈服载荷值。 4.3 柱压碎试验提供了一种标准的数据获取方法，用于研发、应用、设计、质量控制、规范下的验收或拒收以及特殊用途。 在与标准测试的负载-时间尺度有很大不同的应用中，这些测试不能被认为对工程设计具有重要意义。此类应用需要额外的测试，如冲击、蠕变和疲劳。

1.1 This test method covers the determination of mechanical properties of blown thermoplastic containers, whether blown commercially or in the laboratory, loaded under columnar crush conditions at a constant rate of compressive deflection. Note 1: Although this test method was developed specifically for blow-molded containers, the general procedure can also be applied to containers of suitable geometries produced by other means, for example, thermoforming, injection molding, etc. 1.2 The values stated in SI units are to be regarded as the standard. Note 2: There is no known ISO equivalent to this standard. 1.3 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. 1.4 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 Column crush tests only provide information about the crush properties of blown thermoplastic containers when employed under conditions approximating those under which the tests are conducted. 4.2 The column crush properties include the crushing yield load, deflection at crushing yield load, crushing load at failure, and apparent crushing stiffness. Blown thermoplastic containers made from materials that possess a low order of ductility can fail in crushing by brittle fracture. In such cases, the crushing yield load is equivalent to the crushing load at failure. Blown thermoplastic containers made of ductile materials do not always exhibit a crushing load at failure although they will normally provide a crushing yield load value. 4.3 Column crush tests provide a standard method of obtaining data for research and development, applications, design, quality control, acceptance or rejection under specifications, and special purposes. The tests cannot be considered significant for engineering design in applications differing widely from the load - time scale of the standard test. Such applications require additional tests such as impact, creep, and fatigue.