1.1 本规程涵盖了RDF实验室样品的制备，用于分析，实验室样品之前是从具有代表性的RDF样品中获得的。 1.2 RDF空气干燥损失的测定是该制备过程的一部分，必须在颗粒尺寸减小之前进行。 1.3 所给出的实践也可用于其他RDF类型，但在应用该方法之前，可能需要额外的样品制备步骤。 1.4 以国际单位制表示的数值应视为标准。本标准括号内的其他计量单位仅供参考。 1.5 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. . 1.6 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====== 5.1 使用该程序，RDF样本可以转换为适合实验室燃料分析的物理形式。 5.2 如测试方法所示 E791型 ，通过该程序确定的空气干燥水分对于在收到的基础上计算其他实验室结果至关重要。空气干燥水分值与试验方法中残余水分测定的结果一起使用 E790型 以计算样品的总水分。

1.1 This practice covers the preparation of RDF laboratory samples for analysis, the laboratory samples having been previously obtained from representative RDF samples. 1.2 The determination of the air-dry loss of the RDF is part of this preparation procedure and must be performed prior to the particle size reduction. 1.3 The practice given may also be used for other RDF types but additional sample preparation steps may be necessary prior to the application of this method. 1.4 The values stated in SI units are to be regarded as standard. Other units of measurement in parentheses in this standard are informational. 1.5 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 hazard statements are given in Section 7 . 1.6 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 Using this procedure a sample of RDF can be converted into a physical form suitable for laboratory fuel analysis. 5.2 As indicated in Test Method E791 , air-dry moisture, which is determined by this procedure, is essential to the calculation of other laboratory results on an as-received basis. The air-dry moisture value is used in conjunction with the results of the residual moisture determination in Test Method E790 to calculate total sample moisture.