This standard specifies the determination methods for sound power level of noise on the reflection plane under the free-field conditions. Annex C (Normative Annex) presents the measuring methods for sound pressure level of noise. And Annex D (Normative Annex) presents the measuring methods for sound pressure level of noise emitted by air conditioners. This standard is applicable to the refrigerating and air conditioning Equipment/parts (hereinafter referred to as "units") assembled by facilities.
Basic Data
Standard ID
JB/T 4330-1999 (JB/T4330-1999)
Description (Translated English)
Determination of noise emitted by refrigeranting and air conditioning equipments
Sector / Industry
Mechanical and Machinery Industry Standard (Recommended)
Classification of Chinese Standard
J73
Classification of International Standard
27.200
Word Count Estimation
21,254
Date of Issue
1999-07-12
Date of Implementation
2000-01-01
Older Standard (superseded by this standard)
JB 4330-1986
Quoted Standard
GB/T 3785-1983; JJG 176-1984; JJG 188-1984
Summary
This standard specifies: free field over a reflecting plane under conditions of sound power levels of noise Determination, Appendix C gives the noise level measurement methods, Appendix D gives the air conditioner (unit) noise level measurement methods. This standard applies to: the factory assembly factory refrigeration and air conditioning equipment and components.
