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JB/T 7665-2023On-site measurement of sound power level of general mechanical noise Sound intensity method (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

December 29, 2023

Implementation date

July 1, 2024

Scope

JB/T 7665-2023 (On-site measurement of sound power level of general mechanical noise Sound intensity method) is available as an English-translated PDF.

JB/T 7665-2023 — This standard specifies the terms and definitions for measuring the sound power level of general mechanical noise using the sound intensity method, and specifies the quantity to be measured, measurement uncertainty, measurement environment, measuring instruments, unit installation and operation, measurement and sound power level calculation, etc. .

This standard is applicable to the measurement of on-site noise and sound power levels of various general-purpose machinery such as compressors, pumps, fans and separation machinery with prime movers.

It is also applicable to various large-scale general-purpose machines that do not have the environmental conditions required by general sound power level measurement methods.

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Document preview — JB/T 7665-2023

National Standard of the People's Republic of China

ICS: 23.140
Classification: J 72

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the terms and definitions for measuring the sound power level of general mechanical noise using the sound intensity method, and specifies the quantity to be measured, measurement uncertainty, measurement environment, measuring instruments, unit installation and operation, measurement and sound power level calculation, etc. . This standard is applicable to the measurement of on-site noise and sound power levels of various general-purpose machinery such as compressors, pumps, fans and separation machinery with prime movers. It is also applicable to various large-scale general-purpose machines that do not have the environmental conditions required by general sound power level measurement methods. Determination of the sound power level of mechanical noise.

Document data

International classification (ICS): 23.140.

Chinese classification (CCS): J72.

Estimated length of the Chinese original: 12,112 words.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.

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