标准摘要
[中文适用范围]： 本文件规定了根据ISO 13909系列标准采集的煤炭或焦炭试验样品偏差检验的原理和程序。 [外文原描述]： This document sets out principles and procedures for testing the bias of test samples of coals or cokes, taken according to the ISO 13909 series.
英文名称Coal and coke — Mechanical sampling — Part 8: Methods of testing for bias