1.1 此测试方法 2. 适用于个人防护防弹盾牌。 1.2 该测试方法旨在评估执法用防护产品的弹道阻力。 1.3 该测试方法的认证者、购买者和其他用户将指定要使用的弹道测试威胁。在这种测试方法中，定义弹道测试威胁的参考文献将被称为“测试威胁文件” 1.4 在本试验方法中，“其他标准和规范”和“除非另有规定”是指要求使用本试验方法的文件（例如，军事标准、采购规范）。 认证者、采购者和其他用户负责“其他标准和规范”，并规定替代本试验方法的任何要求。 1.5 单位- 国际单位制（公制）或美国习惯单位（英寸-磅）中规定的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。使用任一系统进行的测试都保持了测试方法的可重复性和再现性，且结果具有可比性。 1.6 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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。

1.1 This test method 2 applies to personal protective ballistic-resistant shields. 1.2 The intent of this test method is to evaluate the ballistic resistance of shield products for law enforcement. 1.3 Certifiers, purchasers, and other users of this test method will specify the ballistic test threats to be used. Within this test method, the reference defining the ballistic test threats will be called the “test threats document.” 1.4 In this test method, “other standards and specifications” and “unless specified elsewhere” refer to documents (for example, military standards, purchase specifications) that require the use of this test method. Certifiers, purchasers, and other users are responsible for the “other standards and specifications” and for specifying any requirements that supersede those of this test method. 1.5 Units— Values stated in either the International System of Units (metric) or U.S. Customary units (inch-pound) are to be regarded separately as standard. The values stated in each system may not be exact equivalents. Tests conducted using either system maintain repeatability and reproducibility of the test method and results are comparable. 1.6 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. 1.7 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.