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About This Item

 

Full Description

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.

 

Document History

  1. ASHRAE 120-2022

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    Standard 120-2022 -- Method of Testing to Determine Flow Resistance of HVAC Ducts and Fittings (ANSI Approved)

    • Most Recent
  2. ASHRAE 120-2017


    Standard 120-2017 -- Method of Testing to Determine Flow Resistance of HVAC Ducts and Fittings (ANSI/ASHRAE Approved)

    • Historical Version
  3. ASHRAE 120-2008


    Standard 120-2008 -- Method of Testing the Determine Flow Resistance of HVAC Ducts and Fittings (ANSI/ASHRAE Approved)

    • Historical Version
  4. ASHRAE 120-1999


    Standard 120-1999 -- Method of Testing to Determine Flow Resistance of HVAC Ducts and Fittings (ANSI Approved)

    • Historical Version