1.1 本试验方法提供了一种标准程序，用于测定浸没在沸水中指定时间段的蓝湿布试样的尺寸稳定性或面积收缩。本试验方法适用于所有类型的蓝湿革。 1.2 以国际单位制给出的数值应视为标准。括号中的英寸-磅单位仅供参考。 1.3 本试验方法不适用于湿白色。 1.4 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。 1.5 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 测定蓝湿革的水热面积稳定性可以提供有关鞣制过程的功效以及蓝湿革在面积稳定性是特殊要求的预期最终用途中的充分性的信息。铬鞣革的相对面积稳定性是许多应用的要求，如装订、鞋靴组件、内饰、密封件和垫圈等。 4.2 本试验方法适用于制革厂的开发工作和过程控制，以及用于国内和国际商业用途的蓝湿革规格试验。

1.1 This test method provides a standard procedure for determination of the dimensional stability or area shrinkage of a specimen of Wet Blue that is submersed in boiling water for a specified time period. This test method is applicable to all types of Wet Blue. 1.2 The values given in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only. 1.3 This test method does not apply to Wet White. 1.4 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. 1.5 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 Determination of the hydro-thermal area stability of Wet Blue provides information concerning the efficacy of the tanning process as well as the adequacy of the Wet Blue for intended end use applications where area stability is a particular requirement. Relative area stability of chrome-tanned leather is a requirement for many applications such as bookbinding, shoe and boot components, upholstery, seals and gaskets, etc. 4.2 This test method is suitable for use in development work and process control in the tannery and for specification testing of Wet Blue for domestic and international commercial purposes.