GB/T 2007.1-1987
Active
NB/T 10556-2021
Active
Industry standards-Energy
NB/T 10556-2021 The evaluation method for the effectiveness of the coal roadway strip gas pre-extraction and layering drilling anti-disruption measures
NB/T 10556-2021 The evaluation method for the effectiveness of the coal roadway strip gas pre-extraction and layering drilling anti-disruption measures
Price:
$ 30
Basic Information
Standard Code:
NB/T 10556-2021
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:
2021-01-07
Implement Date:
2021-07-01
Scope
This standard is applicable to coal seams where layer-by-layer drilling and pre-drainage are used to prevent and control gas emissions and prevent coal and gas outbursts in coal roadways.
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
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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