1.1 本试验方法可用于测量利用乳液、树脂乳液或水还原性醇酸的风干水还原涂料中释放的甲醛量。结果可用于定义在受控实验室条件下从样品中释放的“游离”甲醛。 1.2 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。 1.3 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 本试验方法测量了实验室条件下涂层释放的甲醛量。可从涂层释放的甲醛量可能因成分而异，并可能随着样品老化而减少。 4.2 本试验方法可用于水是主要挥发性物质的典型风干涂料。有用范围估计为10 ppm至1000 样品中ppm甲醛。 4.3 据报道，大量其他挥发性醛（如乙醛）会干扰甲醛的测定。预计这一限制不会对大多数常见的减水涂料造成问题。 4.4 未评估含有作为主要挥发性成分的有机溶剂的样品，预计其与本试验方法不兼容。

1.1 This test method may be used to measure the amount of formaldehyde evolved from air-dry water reducible coatings utilizing latices, resin emulsions, or water reducible alkyds. The results may be used to define the “free” formaldehyde evolved from a sample under controlled laboratory conditions. 1.2 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. 1.3 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 This test method measures the amount of formaldehyde that is released from a coating under laboratory conditions. The amount of formaldehyde available for release from a coating may vary depending on composition, and may decrease as the sample ages. 4.2 This test method may be used for typical air dried paints where water is the major volatile material. The useful range is estimated to be from 10 ppm to 1000 ppm formaldehyde in the sample. 4.3 Significant amounts of other volatile aldehydes, such as acetaldehyde, are reported to cause an interference with the determination of formaldehyde. This limitation is not expected to cause a problem for most common water reducible coatings. 4.4 Samples containing organic solvents as the major volatile component have not been evaluated and are not expected to be compatible with this test method.