1.1 本指南确定了联合国（UN）包装认证所需的关键信息，以确保选定的包装将被认证到其预期用途的适当水平，并为定位美国运输部第49篇《联邦法规》（CFR）的相关章节提供了指导。必要时咨询监管专家。 1.2 本指南有助于确定根据《联合国危险货物运输建议》认证包装设计符合美国运输部第49篇《联邦法规》性能导向包装标准所需的适当性能测试。 1.3 本指南涵盖了净质量不超过400 kg（880 lb）或容量不超过450 L（119 gal）的危险材料（危险货物）包装的运输试验，但感染性物质、放射性物质、气瓶和其他气体容器的包装除外。 1.4 本指南不取代国内或国际对危险材料包装的监管要求，但强烈建议与这些法规结合使用。 1.5 本指南的使用者必须按照172.700的要求接受美国运输部第49篇《联邦法规》（49 CFR）的培训，并应熟悉其他适用的危险品法规，如: 国际民用航空组织（ICAO）《危险货物航空安全运输技术说明》、《国际海运危险货物规则》和《国际航空运输协会危险货物条例》等承运人规则。 1.6 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.7 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。 1.8 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 联合国性能测试基于拟包装的危险材料所呈现的危险程度。 4.2 危险物质和物品被分配到特定的包装组，如 3.8.1 并且可以通过参考49 CFR 172.101危险品表来确定。 4.3 只有根据联合国性能标准成功测试的包装设计，如 3.8.2 外包装上可能有联合国规范标志。除非相关主管部门另有授权，否则不得使用未带有适当联合国规范标记的包装运输危险材料。 4.4 根据联合国性能标准成功测试的包装可能承受也可能不承受北美的分销环境。为了进一步评估包装的适用性，强烈建议进行实践中详细说明的额外测试 第4169页 或进行其他承运人规定的测试要求。

1.1 This guide identifies the key information required for United Nations (UN) packaging certification to ensure the selected packaging will be certified to the appropriate level for its intended use and provides guidance for locating relevant sections of the United States Department of Transportation Title 49 Code of Federal Regulations (CFR). Consult with a regulatory specialist whenever needed. 1.2 This guide provides assistance in determining the appropriate performance tests required to certify packaging designs to the United States Department of Transportation Title 49 Code of Federal Regulations performance oriented packaging standards based on the United Nations Recommendations on the Transport of Dangerous Goods. 1.3 This guide covers the testing for transportation of hazardous materials (dangerous goods) packagings for net masses not exceeding 400 kg (880 lb) or capacities not exceeding 450 L (119 gal), excepting packagings for infectious substances, radioactive materials, cylinders and other receptacles for gases. 1.4 This guide does not replace domestic or international regulatory requirements for hazardous materials packaging but is strongly recommended to be used in conjunction with those regulations. 1.5 The user of this guide must be trained in accordance with the United States Department of Transportation Title 49 Code of Federal Regulations (49 CFR) as required by 172.700 and should be familiar with other applicable hazardous materials regulations such as: International Civil Aviation Organization (ICAO) Technical Instructions for the Safe Transport of Dangerous Goods by Air, and the International Maritime Dangerous Goods Code (IMDG Code) and carrier rules such as International Air Transport Association (IATA) Dangerous Goods Regulations. 1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.7 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. 1.8 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 The UN performance tests are based on the degree of hazard presented by the proposed hazardous material(s) to be packaged. 4.2 Substances and articles which are hazardous are assigned to a specific packing group as defined in 3.8.1 and may be determined by referencing 49 CFR 172.101 hazardous materials table. 4.3 Only packaging designs that have been successfully tested to the UN performance standards as defined in 3.8.2 may have the UN specification mark applied to the outer packaging. Hazardous Materials may not be transported in a packaging that does not bear the appropriate UN specification markings unless otherwise authorized by the applicable competent authority. 4.4 Packages successfully tested to the UN performance standards may or may not withstand the North American distribution environment. To further evaluate the suitability of the package it is strongly recommended that additional tests as detailed in Practice D4169 or other carrier specified test requirements be conducted.