GB/T 42638-2023

Active

The direct measuring method of the coal seam gas drainage radius in coal mine—Method of drainage volume

煤矿井下煤层瓦斯抽采半径直接测定方法 抽采量法

Standard Type
GBT
ICS
13.100
CCS
D09
Status
现行
Issue Date
2023-05-23
Implementation
2023-12-01
Responsible Dept
中国煤炭工业协会
Drafting Unit
N/A