This document specifies the precision of coal sample preparation, specimen composition, division, reduction, mixing and air-drying, as well as the preparation of various coal samples, coal sample for back-check and the design requirements for sample preparation equipment. This document is applicable to lignite, bituminous coal and anthracite coal.
Basic Data
Standard ID
GB/T 19494.2-2023 (GB/T19494.2-2023)
Description (Translated English)
Mechanical sampling of coal - Part 2: Method for sample preparation
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
D21
Classification of International Standard
73.040
Word Count Estimation
30,342
Date of Issue
2023-11-27
Date of Implementation
2024-03-01
Older Standard (superseded by this standard)
GB/T 19494.2-2004
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
