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Full Description

Standard 126 provides laboratory test procedures for determining the structural strength, dimensional stability, durability, and leakage characteristics of HVAC air ducts. Changes in the 2020 revision include updated references.
 

Document History

  1. ASHRAE/SMACNA 126-2020

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    Standard 126-2020 -- Method of Testing HVAC Air Ducts (ANSI/SMACNA Approved)

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  2. ASHRAE 126-2016


    Standard 126-2016 -- Method of Testing HVAC Air Ducts (SMACNA/ANSI Approved)

    • Historical Version
  3. ASHRAE 126-2008


    Standard 126-2008 -- Method of Testing HVAC Air Ducts and Fittings (ANSI/ASHRAE/SMACNA Approved)

    • Historical Version
  4. ASHRAE 126-2000


    Standard 126-2000 -- Method of Testing HVAC Air Ducts (ANSI approved) (SMACNA standard) -- Downloadable

    • Historical Version