1.1 这些试验方法包括测定浸入试验流体后对非金属衬垫材料物理性能的影响。所涵盖的材料类型为分类中所述的类型1、类型2、类型3和类型7 F104 . 这些试验方法不适用于硫化橡胶的试验，试验方法中描述了该程序 D471 . 它用于测试从衬垫材料或成品商业品上切下的样本。这些试验方法也可用作根据试验方法进行的多层钢、MLS或金属层垫片材料附着力试验的预处理 D3359 . MLS或金属层垫片材料的预处理仅作为附着力测试的预处理。本标准中描述的其他物理性能测试不适用于MLS或金属层垫片材料。 1.2 以国际单位制表示的数值应视为标准。英寸- 括号中的磅单位仅供参考。 1.3 请参阅当前的材料安全数据表（MSDS）和供应商为这些试验方法中提及的任何材料提供的任何预防性标签。 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 这些试验方法提供了一个标准化程序，用于测量在特定时间和温度条件下浸入指定流体的影响。 鉴于垫片应用中遇到的温度变化大和特殊用途，这些试验方法的结果不打算与使用条件直接相关。为了比较不同材料，选择了典型的特定试验流体和试验条件，并在买方和制造商之间达成一致意见后，可将其用作常规试验。

1.1 These test methods cover the determination of the effect on physical properties of nonmetallic gasketing materials after immersion in test fluids. The types of materials covered are Type 1, Type 2, Type 3, and Type 7 as described in Classification F104 . These test methods are not applicable to the testing of vulcanized rubber, a procedure that is described in Test Method D471 . It is designed for testing specimens cut from gasketing materials or from finished articles of commerce. These test methods may also be used as a pre-treatment for Multi-Layer Steel, MLS, or Metal Layer Gasket materials adhesion testing per Test Methods D3359 . The pre-treatment of MLS or Metal Layer Gasket materials pertains only as a pre-cursor to the adhesion test. Other physical property tests described in this standard are not applicable to MLS or Metal Layer Gasket materials. 1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only. 1.3 Refer to the current Material Safety Data Sheet (MSDS) and any precautionary labeling provided by the supplier of any materials referred to in these test methods. 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 These test methods provide a standardized procedure to measure the effect of immersion in specified fluids under definite conditions of time and temperature. The results of these test methods are not intended to give any direct correlation with service conditions in view of the wide variations in temperature and special uses encountered in gasket applications. The specific test fluids and test conditions outlined were selected as typical for purposes of comparing different materials and can be used as a routine test when agreed upon between the purchaser and the manufacturer.