GB/T 4976-1985
Replaced
GB/T 4980-2025
Active
National standards
GB/T 4980-2025 Determination of sound level for noise emitted by displacement compressors
GB/T 4980-2025 Determination of sound level for noise emitted by displacement compressors
Basic Information
Standard Code:
GB/T 4980-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Compressors and fans
ICS Name:
Compressors and pneumatic machinery
Publish Date:
2025-05-30
Implement Date:
2025-12-01
Pages:
32 pages
Scope
This document describes the measurement method for the emission noise of volumetric compressors (including the measurement method for the sound power level of volumetric compressors and the measurement method for the emission sound pressure level at the working position), and stipulates the installation, operation, and working requirements of volumetric compressors during measurement.
This document is applicable to volumetric compressors, including their drive motors.
Development Information
Replace the following standards
Referenced Standards
Related Standards
GB/T 5773-1986
Replaced
GB/T 5773-1986 The methods of performance test for positive displacement refrigerant compressors
GB/T 13276-1991
Abolished
GB/T 13276-1991 Intake filter silencers for displacement air compressors
GB/T 13277-1991
Replaced
GB/T 13277-1991 Compressed air for general use—Quality classes
GB/T 13278-1991
abolished_transferred
GB/T 13278-1991 Dry screw air compressor for general use—Specifications
GB/T 13280-1991
Abolished