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AHRI 575-94
M00004047
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AHRI 575-94 Method of Measuring Machinery Sound within Equipment Space
standard by Air-Conditioning, Heating, and Refrigeration Institute (formerly ARI), 01/01/1994
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The purpose of this standard is to establish a uniform method of measuring and recording the sound pressure level of machinery installed in a mechanical equipment space. It is not the intent of this standard to be used for the sound rating of equipment.This standard applies to water chilling systems, pumps and similar operating machines and parts thereof, which for reasons of size or operating characteristics are more practically evaluated in situ.