1.1 这些试验方法评估了在预定环境条件下，随时间推移，具有匹配饰面的容器上连续螺纹封口的扭矩保持力。为I型、A型下推和II型转弯定义了方法 2. 防儿童型和非防儿童型外壳。 1.2 以国际单位或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不完全相等；因此，每个系统应独立于其他系统使用。 结合两个系统的值可能会导致不符合标准。 注1: 建议采用国际单位制。 1.3 本标准并不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（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====== 5.1 本试验方法可用于测量各种设计、材料和制造的容器/连续螺纹闭合系统的扭矩保持性能，并适用于包装开发和工程评估。 5.2 每种试验方法可用于在受控条件下评估非儿童阻力容器/连续螺纹闭合系统，例如当应用扭矩已知且闭合向下施加的力为零或I型时，样式“A”在受控条件下下推下和转动防儿童容器/连续螺纹闭合系统，例如已知闭合装置的施加扭矩和施加的向下力。 5.3 本试验方法使用在已知转速（rpm）或已知扭矩斜率下运行的基于自动传感器的扭矩计测量容器/连续螺纹闭合系统的扭矩保持性能。 5.4 本试验方法仅用于测量干扭矩。

1.1 These test methods evaluate the torque retention of continuous thread closures on containers with matching finishes, for predetermined environmental conditions over time. Methods are defined for both Type I, style “A” push down and turn Type II 2 child resistant and non child resistant type closures. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Note 1: The SI unit system is the recommended system. 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 ====== 5.1 This test method allows for the measurement of the torque retention properties of container/continuous thread closure systems of various designs, materials, and manufacture, and is suitable for package development and engineering evaluation. 5.2 Each test method can be used for the evaluation of non child resistant container/continuous thread closure systems under controlled conditions such as when the application torque is known and the applied downward force to the closure is zero or for Type I, style “A” push down and turn child resistant container/continuous thread closure systems under controlled conditions such as when the application torque and the applied downward force to the closure is known. 5.3 This test method measures torque retention properties of container/continuous thread closure systems with the use of an automated transducer based torque meter operating at a known rotational velocity (rpm) or known torque ramp. 5.4 This test method is intended for measurement of dry torque only.