GB/T 2007.1-1987
Active
NB/T 11468-2023
Active
Industry standards-Energy
NB/T 11468-2023 Hydraulic-driven mechanical enlargement and enhanced permeability technology requirements
NB/T 11468-2023 Hydraulic-driven mechanical enlargement and enhanced permeability technology requirements
Basic Information
Standard Code:
NB/T 11468-2023
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Health, safety, and labor protection
ICS Name:
Mining and mineral products comprehensive
Publish Date:
2023-12-28
Implement Date:
2024-06-28
Pages:
8 pages
Scope
This document is applicable to the construction work of increasing the permeability of coal seams by hydraulically driving mechanical reaming in coal mines. Other operations of increasing the permeability of coal seams by hydraulic mechanical reaming shall be implemented in accordance with this document.
Development Information
Related Standards
GB/T 2007.2-1987
Active
GB/T 2007.2-1987 General rules for the sampling and sample preparation of minerals in bulk Sample preparation by manual method
GB/T 2007.3-1987
Active
GB/T 2007.3-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for evaluation of quality variation
GB/T 2007.4-1987
Replaced
GB/T 2007.4-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental methods for checking the precision
GB/T 2007.5-1987
Replaced
GB/T 2007.5-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for checking the bias of sampling
GB/T 2007.6-1987
Active