Standard No.:	GB 475-2008
Chinese Name:	商品煤样人工采取方法
English Name:	Method for manual sampling of commercial coal
Professional Classification:	D21 Coal analysis methods
Professional Classification:	GB National Standard
ICS Classification:	73.040
Issued by:
Issued on:	1983-06-15
Implemented on:	2009-05-01
Status:	VALID
Replace:	GB475-1996 Sampling for commercial coal
Target Language:	English
File Format:	PDF
Word Count:	18000 words
Translation Price:	540 (USD)
Delivery:	via email in 1-5 business day

This standard defines the terms and definitions in manual sampling of commercial coal and describes the general principles of sampling. It specifies sampling precision, establishment of sampling scheme, sampling methods, manual sampling equipment, package and marking of coal sample and a sampling report.
This standard is applicable to lignite, soft coal and hard coal.

前言Ⅰ
１　范围１
２　规范性引用文件１
３　术语和定义１
４　采样的一般原则和采样精密度３
４．１　采样的一般原则３
４．２　采样精密度４
５　采样方案５
５．１　采样方案选择５
５．２　基本采样方案５
５．３　专用采样方案的设计８
６　采样方法———初级子样采取方法１１
６．１　移动煤流采样方法１１
６．２　静止煤采样方法１３
７　间断采样方法１４
８　各种煤样的采取１５
９　人工采样工具１５
９．１　人工采样工具的基本要求１５
９．２　示例１５
１０　煤样的包装和标识１９
１１　采样报告１９
附录Ａ（资料性附录）本标准与ＩＳＯ１８２８３：２００６（Ｅ）章条编号对照表２１
附录Ｂ（资料性附录）本标准与ＩＳＯ１８２８３：２００６（Ｅ）的技术性差异及其原因２２
附录Ｃ（规范性附录）采样精密度核验和偏倚试验２４
附录Ｄ（资料性附录）子样质量、采样单元数量和采样单元子样数的计算举例２７
附录Ｅ（资料性附录）粒度大于１５０ｍｍ 或其他粒度大块物料的处理方法３０