JB/T 4330-1999 English PDF (JBT4330-1999)
JB/T 4330-1999 English PDF (JBT4330-1999)
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JB/T 4330-1999: Determination of noise emitted by refrigeranting and air conditioning equipments
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JB/T 4330-1999: Determination of noise emitted by refrigeranting and air conditioning equipments
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 and quot;units and quot;) assembled by facilities.
Read this Google-Book: JB/T 4330-1999
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