本标准第1部分介绍了从溪流、货车、驳船和堆料中采集褐煤和褐煤的方法原理，这些方法不同于硬煤采样中描述的方法。重复取样的其他一般原则和程序与硬煤相同。

Part 1 of this standard presents the principles of methods for the sampling of brown coals and lignites from streams, wagons, barges and stock-piles which differ from those described in sampling of hard coals. Other general principles and the procedure of replicate sampling are the same as for hard coals.