1.1 此测试方法 2. 3. 旨在确定固相危险材料对跌落重量冲击刺激的相对灵敏度。对于液相材料，请参考试验方法 D2540 . 1.2 本标准可能涉及危险材料、操作和设备。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。 1.3 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 该试验方法不需要对仪器进行全面严格的标准化。对样品进行无限制或限制在限制杯中的试验。对于有限试验，一些重要的杯参数，如杯材料、杯壁厚度以及杯与撞针之间的配合，都是标准化的。无侧限和限制试验产生的数据通常不会表现出相同的相对灵敏度，必须确定为限制或无侧限数据，并分别进行比较。 4.2 本试验方法适用于所有旨在建立危险材料相对灵敏度等级的试验。 这并不意味着禁止测试工艺厚度样品，也不意味着禁止使用标准工具质量和打击直径以外的其他工具来生成用于特殊目的或内部比较的数据。此外，该测试方法并非旨在限制除 H 50 危险分析技术可能需要的点。 4.3 标准化数据将作为危险材料在50 % 反应水平的概率。归一化的 H 50 数值也可以与其他反应水平概率相关的额外数据（不是本试验方法的一部分）一起使用，以评估与危险材料的制造、运输、储存和使用相关的危险。

1.1 This test method 2, 3 is designed to determine the relative sensitivities of solid-phase hazardous materials to drop weight impact stimulus. For liquid-phase materials refer to Test Method D2540 . 1.2 This standard may involve hazardous materials, operations, and equipment. 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 test method does not require an overall rigid standardization of the apparatus. Samples are tested either unconfined or confined in confinement cups. For confined tests, some of the important cup parameters, such as cup material, cup wall thickness, and fit between the cup and the striking pin, are standardized. Data generated from unconfined and confined tests will not, in general, exhibit the same relative scale of sensitivities, and must be identified as confined or unconfined data and compared separately. 4.2 This test method applies to all testing where the intent is to establish a relative sensitivity scale for hazardous materials. It is not intended to prohibit testing process-thickness samples nor prohibit the use of other than standard tool masses and striking diameters to generate data for special purposes or for in-house comparisons. In addition, the test method is not intended to restrict the generation of results at other than the H 50 point as may be desirable for hazard analysis techniques. 4.3 The normalized data will serve as a measure of the relative sensitivities of hazardous materials at the 50 % probability of reaction level. The normalized H 50 values can also be used in conjunction with additional data relating to other probability of reaction levels (not a part of this test method) to assess hazards associated with the manufacture, transportation, storage, and use of hazardous materials.