1.1 本规程涵盖了发动机冷却液和防锈剂溶液的取样和制备信息( 注释1和 2. ). 1.2 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1.3 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。 注1: 本规程中提及的防锈剂包括拟用于汽车/轻型和重型应用的产品，其中水用作冷却介质。 注2: 防锈产品有液体和固体两种形式。固体应按照中所述进行处理 附件A1 . 1.4 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 车辆服务或实验室人员通常使用本规程对发动机冷却液或防锈剂的水溶液进行采样和制备，以进行进一步评估和测试。 3.2 在ASTM试验方法中对产品水溶液进行取样和制备以进行评估时，应遵循本规程。 3.3 必须注意确保抽取具有代表性的产品样本。 3.4 本规程描述了几种不同的测试方法。应遵循的方法应得到供应商和客户的同意。

1.1 This practice covers information on sampling and preparing solutions of engine coolants and antirusts ( Notes 1 and 2 ). 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.3 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. Note 1: Antirust as referred to in this practice covers products intended for use in automotive/light-duty and heavy-duty applications in which water is used as the cooling medium. Note 2: Antirust products are available in liquid and solid form. Solids should be handled as outlined in Annex A1 . 1.4 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 practice is used commonly by vehicle service or laboratory personnel for sampling and preparing aqueous solutions of engine coolants or antirust for further evaluation and testing. 3.2 This practice shall be followed when sampling and preparing aqueous solutions of products for evaluation in ASTM test methods. 3.3 Care must be taken to ensure that a representative sample of product is taken. 3.4 This practice describes several different test methods. The methods to be followed should be agreed to by the supplier and the customer.