1.1 本试验方法包括测定包装的隔热质量及其内容物在可变环境温度条件下的热稳定性。它适用于测试具有各种内部能源的包装，包括或不包括产品有效载荷。 1.2 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 具体预防说明见 5.3 . 1.3 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====== 4.1 本试验方法旨在评估用于高价值、高风险材料的隔热包装的性能。该测试方法也可用于任何需要准确内部包装温度读数的产品，同时暴露在一系列外部空气温度下。 4.2 某些物品，如生物材料、药品、诊断和血液制品，必须在温控包装内运输。影响包装传热速率的因素包括外部包装的隔热、能源和产品有效载荷。 4.3 由于影响隔热包装性能的因素多种多样，应尽可能使用实际包装进行测试。使用模拟包装时，必须特别小心，使模拟有效载荷和冷却液在温度和其他相关物理特性方面尽可能接近实际包装。

1.1 This test method covers the determination of the thermal insulation quality of a package and the thermal stability of its contents when exposed to variable ambient temperature conditions. It is suitable for testing packages with various internal energy sources with or without product payloads. 1.2 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. Specific precautionary statements are given in 5.3 . 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 is intended for use for evaluating the performance of thermal insulated packaging used for high-value, high-risk materials. This test method may also be used for any product that requires accurate internal package temperature readings while being exposed to a range of external air temperatures. 4.2 Certain items, such as biological materials, pharmaceuticals, diagnostics, and blood products, must be shipped inside temperature-controlled packages. Factors affecting the rate of heat transfer of the package include the insulation of the exterior package, the energy source, and the product payload. 4.3 Because of the variety of factors affecting the performance of a thermally insulated package, testing should be conducted with the actual package whenever possible. When simulated packages are used, special care must be exercised so that the simulated payload and coolant will be as close as possible to the actual packages in temperature and other relevant physical properties.