MT 644-1997
Active
GB/T 15335-2019
Active
National standards
GB/T 15335-2019 Determination of leakage rate and specific resistance for air duct
GB/T 15335-2019 Determination of leakage rate and specific resistance for air duct
Price:
$ 50
Basic Information
Standard Code:
GB/T 15335-2019
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Mine machinery and equipment
ICS Name:
Other mining equipment
Publish Date:
2019-06-04
Implement Date:
2020-01-01
Pages:
10 pages
Scope
This standard specifies the measurement system, measurement procedures, and calculation of measurement results for the air leakage rate and air resistance of air ducts.
This standard is applicable to the measurement of air leakage rates and air resistance of both positive-pressure and negative-pressure air ducts.
Development Information
Replace the following standards
Referenced Standards
GB/T 1236-2000 Industrial fans—Performance testing using standardized airways
GB/T 1236-2017 Industrial fan—Performance testing using standardized airways
GB/T 2624.3-2006 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 3:Nozzles and Venturi nozzles
MT 222-1996 Mining local blower for coal mine
MT/T 222-2019 The technical specifications for local fans used in coal mines
MT 222-1990 Local blower for coal mine
MT/T 222-2007 MT/T 222-2007 Specification for local fan used in coal mine
Related Standards
MT 646-1997
Abolished
MT 646-1997 Frictional metal prop
MT 668-1997
Replaced
MT 668-1997 Technical Conditions for Flame-Retardant Steel-Mesh-Core Conveying Belt for Coal Mines
MT 669-1997
Active
MT 669-1997 Technical condition of fire-resistant steel-cable conveyor-belt in coal mining
MT/T 154.7-1997
Active
MT/T 154.7-1997 Model designation of separating equipment for coal
MT/T 660-1997
Active