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ARI 250-2013
- Performance and Calibration of Reference Sound Sources (AHRI)
- standard by Air-Conditioning, Heating, and Refrigeration Institute (formerly ARI), 2014
- Publisher: ARI
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This standard applies to all Reference Sound Sources used in conjunction with ARI sound rating standards and covers the one-third octave band frequency range from 50 to 10,000 Hz. this standard also includes calibration over a limited frequency range. Multiple Reference Sound Sources may be used to cover the entire frequency range from 50 to 10,000 Hz.
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