GB/T 46291-2025

Active

General rules of coal petrographic analysis

煤岩分析方法一般规定

Standard Type
GBT
ICS
73.040
CCS
D26
Status
现行
Issue Date
2025-10-05
Implementation
2026-05-01
Responsible Dept
中国煤炭工业协会
Drafting Unit
N/A