1.1 本试验方法描述了一种实验室程序，用于测定油基和树脂基（注）嵌缝化合物的收缩率，以及评估此类化合物的韧性。本试验方法适用于枪（I型）和刀（II型）等级。 注1: 这不是适用于水基产品的测试方法。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 具有管辖权的小组委员会不知道有任何类似的ISO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====== 5.1 收缩率是衡量油基或树脂基化合物的非挥发性固体的一种方法。表现出过度收缩的化合物在使用时可能会从接头侧面开裂或收缩。 5.2 韧性是衡量油基或树脂基填缝剂柔韧性的指标。固化过硬且不保持柔性的油基或树脂基嵌缝化合物可能因无法吸收运动而过早失效。

1.1 This test method describes a laboratory procedure for determining the shrinkage of oil- and resin-base (Note) caulking compounds, as well as the evaluation of the tenacity property of such compounds. This test method is applicable to both gun (Type I) and knife (Type II) grades. Note 1: This is not a suitable test method for water-base products. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 The subcommittee with jurisdiction is not aware of any similar ISO 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 ====== 5.1 Shrinkage is a measure of the nonvolatile solids of an oil- or resin-base compound. A compound that exhibits excessive shrinkage may have a tendency to crack or shrink from the sides of a joint when in service. 5.2 Tenacity is the measure of the flexibility of an oil- or resin-base caulking compound. Oil- or resin-base caulking compounds that cure excessively hard and do not remain flexible may fail prematurely because of the inability to absorb movement.