1.1 本试验方法涵盖了测量浸入液体对硫化橡胶或橡胶材料影响的技术。通过包含浸入液体中的试样的管的透明壁观察试样几何形状和尺寸的变化。尽管它可以用于任何液体，但它特别适用于挥发性很强的液体，因此在浸泡期间必须保持压力。 1.2 本试验方法不同于试验方法 D471 在这种情况下，体积变化近似于观察到的尺寸变化，而不是直接计算。 1.3 以国际单位制表示的数值应视为标准。 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====== 3.1 本试验方法为橡胶技术专家提供了两种方法来评估液体对橡胶硫化胶或橡胶材料的影响。可以使用挥发性、非挥发性和其他需要压力以保持液态的液体。通过该方法获得的暴露在液体中的橡胶材料的数据可用于预测其在涉及类似暴露的应用中的行为。已发现这些长度变化对规范有用，但不一定表示出于设计目的的变化。

1.1 This test method covers a technique to measure the effect of immersion liquids on rubber vulcanizates or rubbery materials. Change in specimen geometry and dimensions are observed through the transparent walls of the tube containing the specimen immersed in the liquid. Although it may be employed with any liquid, it is especially applicable to liquids that are so volatile that they must be maintained under pressure during the period of immersion. 1.2 This test method differs from Test Method D471 in that volume changes are approximated from observed dimensional changes rather than being calculated directly. 1.3 The values stated in SI units are to be regarded as the standard. 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 ====== 3.1 This test method gives the rubber technologist two means to evaluate the effect of liquids on rubber vulcanizates or rubbery materials. Volatile, nonvolatile, and other liquids that require pressure to maintain a liquid state may be used. Data obtained on rubbery materials exposed to liquids by this method may be used to predict their behavior in applications involving similar exposure. These changes in length have been found to be useful for specifications but do not necessarily indicate changes for design purposes.