1.1 本试验方法确定并标准化背包和相关袋子的未扩展和扩展容量。相关包包括腰包、软帆布包、内外框架包、行李包和旅行包。 1.2 本试验方法旨在提供一种方法，使制造商和消费者可以采用一致的方法来比较包装体积。 1.3 本试验方法未考虑背包中未完全由织物包裹的区域，如网袋、水瓶架和压缩机袋。 1.4 出于实际目的，本试验方法不能用于测量小于4 L的容量。 1.5 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。 1.6 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 许多消费者将容量测量作为确定适合其需求的背包尺寸的关键规格。

1.1 This test method determines and standardizes an unextended and extended capacity for backpacks and related bags. Related bags include lumbar packs, soft rucksacks, internal and external frame packs, duffel bags, and travel packs. 1.2 This test method is designed to provide a means whereby manufacturers and consumers may have a consistent means to compare pack volumes. 1.3 This test method does not take into consideration areas of the backpack that are not completely enclosed by fabric such as mesh pockets, water bottle holders, and compressor pockets. 1.4 For practical purposes this test method cannot be used to measure capacities less than 4 L. 1.5 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. 1.6 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 Many consumers use the capacity measurement as a key specification to determine the backpack size suitable for their requirements.