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ASHRAE 120-2022
M00004080
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ASHRAE 120-2022 Standard 120-2022 -- Method of Testing to Determine Flow Resistance of HVAC Ducts and Fittings (ANSI Approved)
standard by ASHRAE, 2022
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Standard 120 establishes uniform methods of laboratory testing of HVAC ducts and fittings to determine their resistance to airflow.
The 2022 edition of Standard 120 includes updated references.