JB/T 7665-2007
Determination of sound power levels for noise emitted by general machinery at the work station.Sound intensity method (English Version)

Standard No.

JB/T 7665-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

Professional Standard - Machinery

Status

Be replaced 2024-07

Replace By

JB/T 7665-2023

Latest

JB/T 7665-2023

Replace

JB/T 7665-1995

Scope

This standard specifies a method for determining the noise sound power level by measuring sound intensity on site, with engineering-level accuracy. This standard is applicable to the measurement of on-site noise and sound power levels of various general machinery such as positive displacement compressors with prime movers, refrigerators, separation machinery, reciprocating pumps, HVAC, etc., especially those that cannot meet the requirements of general sound power level measurement methods. Environmental conditions of large units.

JB/T 7665-2007 Referenced Document

• GB 3102.7 Quantities and units of acoustics
• GB/T 3947 Acoustical terminology

JB/T 7665-2007 history

• 2023 JB/T 7665-2023 Method for on-site determination of sound power level of general mechanical noise
• 2007 JB/T 7665-2007 Determination of sound power levels for noise emitted by general machinery at the work station.Sound intensity method
• 1995 JB/T 7665-1995 Sound intensity method for on-site measurement of sound power level of general machinery noise