1.1本规程涵盖了从煤堆表面获取手动总样本的程序。这些程序用于为一般实验室分析提供总样本，并用于估计质量和总水分。将总样品压碎，并根据方法D2013进一步制备以供分析。其他指南（D 4916）或工作文件介绍了机械设备，如螺旋采样器和取芯钻机。 1.2用户应注意，此类样本不满足概率抽样的最低要求，因此不能用于对精度、标准误差或偏差进行统计推断。 1.3本抽样方法仅适用于无法通过更可靠的方法提供概率抽样的情况。 1.4以可接受的国际单位制或英寸-磅单位表示的数量单独视为标准。每个系统中规定的数量可能不是精确的等价物；因此，每个系统必须相互独立使用，不得以任何方式组合数量。 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）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This practice covers procedures for obtaining a manual gross sample from the surface of coal stockpiles. These procedures are used to provide gross samples for general laboratory analysis and for estimating quality and total moisture. The gross sample is to be crushed and further prepared for analysis in accordance with Method D2013. Mechanical equipment such as auger samplers and core drill rigs are addressed by othe guides (D 4916) or working papers. 1.2 The user is cautioned that samples of this type do not satisfy the minimum requirements for probability sampling and as such cannot be used to draw statistical inferences about the precision, standard error, or bias. 1.3 This sampling method is intended for use only when sampling by more reliable methods that provide a probability sample is not possible. 1.4 The quantities stated in either acceptable SI units or in inch-pound units are regarded separately as standard. The quantities stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining quantities in any way. 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 and health practices and determine the applicability of regulatory limitations prior to use.