1.1 本试验方法包括总羰基在0.5范围内的测定 μg至50μg，以CO计算。 1.2 本试验方法是通用的，不包括样品制备步骤。 1.3 还测定了在试验条件下水解的缩醛。 1.4 容易水解的羰基衍生物如缩醛和亚胺可以通过另一种方法测定。 1.5 显影后的颜色不稳定，必须在指定的时间内进行测量。 注1: 试验方法中给出了测定痕量羰基化合物的其他试验方法 D1089 , D1612 , D2119 和 D2191 . 1.6 查阅当前适当的安全数据表（SDS），了解有关毒性、急救程序和安全预防措施的详细信息。 1.7 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.8 在使用该方法确定试验结果是否符合适用规范时，应根据实践中的舍入方法对结果进行舍入 E29 . 1.9 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 具体危害说明见第节 7. 和Section 8. . 1.10 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 本试验方法适用于测定水溶液和各种有机溶剂中痕量的醛和酮。

1.1 This test method covers the determination of total carbonyl in the range from 0.5 μg to 50 μg calculated as CO. 1.2 This test method is intended to be general and does not include steps for sample preparation. 1.3 Acetals that hydrolyze under the conditions of the test are also determined. 1.4 Carbonyl derivatives such as acetals and imines that are easily hydrolyzed may be determined by an alternative procedure. 1.5 The developed color is not stable and must be measured within a specified period. Note 1: Other test methods for the determination of traces of carbonyl compounds are given in Test Methods D1089 , D1612 , D2119 , and D2191 . 1.6 Review the current appropriate Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29 . 1.9 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. Specific hazards statements are given in Section 7 and Section 8 . 1.10 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 is applicable to the determination of trace amounts of aldehydes and ketones in aqueous solutions and a wide variety of organic solvents.