Standard No.:	GB/T 19494.1-2004
English Name:	Mechanical sampling of coal?Part 1:Method for sampling
Chinese Name:	煤炭机械化采样 第1部分:采样方法
Chinese Classification:	D21    Coal analysis methods
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2004-04-30
Implemented on:	2004-10-1
Status:	superseded
Superseded by:	GB/T 19494.1-2023 Mechanical sampling of coal—Part 1:Method for sampling
Superseded on:	2024-3-1
Superseding:	GB 475-1996 Sampling for commercial coal
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	160.0
Delivery:	via email in 1 business day

This Part of GB/T 19494 specifies the terms and definitions, general principles and precision of sampling, establishing a sampling scheme, coal-sampling from moving streams, coal-sampling from stationary lots, packing and marking of coal samples as well as sampling report for the mechanical sampling of coal. This Part is applicable to brown coals, bituminous coals and hard coals.

Foreword i 1 Scope 1 2 Normative References 1 3 Terms and Definitions 2 4 General Principles and Precision of Sampling 5 5 Establishing a Sampling Scheme 6 6 Coal-sampling from Moving Streams 13 7 Coal-sampling from Stationary Lots 19 8 Packing and Marking of Coal Samples 24 9 Sampling Report 25 Appendix A (Informative) Examples of Calculations of the Number of Sampling Units and Number of Increments per Sampling Unit 26 Appendix B (Normative) Evaluation of Sampling Equipment for Mass-basis Sampling 28