1.1 本规程列出了允许在常用的各种基础上表达分析数据的公式。这些基础是:收到的、干燥的、平衡的水分、干燥的无灰等。 1.2 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。 1.3 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。 1.4 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 第节中列出的煤和焦炭试验参数的分析数据计算 6. ，假设分析样品是根据实践准备的 2013年2月 和试验方法 D3302 。 4.2 该实践提供了公式，以便能够计算从确定的分析样品到各种水分基准的数据，这在煤炭和焦炭行业中是常见的。 4.3 该实践提供了指导，可以计算不同批次或子批次的重量平均数据，这些数据最初是在不同的水分基础上提供的。 4.4 本规程中给出的原则适用于累积数据的计算。 g.用于贸易目的或用于筛分分析或可洗性分析）。

1.1 This practice lists formulas that allow analytical data to be expressed in various bases in common use. Such bases are: as received, dry, equilibrium moisture, dry ash free, and others. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 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 ====== 4.1 The calculations of analytical data for the coal and coke test parameters listed in Section 6 , assume the analysis sample has been prepared according to Practice D2013 and Test Method D3302 . 4.2 This practice provides formulas, to enable calculations of data from the as-determined analysis sample to various moisture bases, in common use by the coal and coke industry. 4.3 This practice provides guidance to enable calculations of weight-average data from various lots or sublots, which, initially, are provided at different moisture bases. 4.4 The principles given in this practice are applicable to the calculation of cumulative data (e.g., for trade purposes or for sieve analyses or washability analyses).