General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 22205-2008
Scope
This standard specifies the classification principles, classification basis and classification methods of hydrogeological conditions in coal mining areas or working faces. This standard applies to underground coal mines.
GB/T 22205-2008 history
2008GB/T 22205-2008 Hydrogeological classification of mining district or working face