GB/T 4980-2003
Determination of sound level for noise emitted by displacement compressors (English Version)

Standard No.

GB/T 4980-2003

Language

Chinese, Available in English version

Release Date

2003

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 4980-2003

Replace

GB/T 7022-1986 GB/T 4980-1985

Scope

This standard specifies the measurement method for the noise of positive displacement compressors. The text of this standard mainly specifies the engineering method for measuring noise sound power level. Appendix A gives a simple method for measuring noise sound power level, and Appendix B gives a method for measuring noise sound pressure level. This standard applies to volumetric compressor units including the driving machine (hereinafter referred to as compressor units).

GB/T 4980-2003 history

• 2003 GB/T 4980-2003 Determination of sound level for noise emitted by displacement compressors
• 1985 GB/T 4980-1985 Determination of sound power level for noise emitted by displacement compressors--Engineering method

GB/T 4980-2003 Determination of sound level for noise emitted by displacement compressors has been changed from GB/T 7022-1986 Determination of sound power lever for noise emitted by displacement compressors--Survey method.