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Full Description

ASHRAE Standard 139 provides uniform test methods for rating desiccantdehumidifiers that use heat for the regeneration process. It addresses the test methods, apparatus and instruments to be used, data to be obtained, and calculations needed to confirm valid test results.This 2019 revision of Standard 139 includes updated references.
 

Document History

  1. ASHRAE 139-2019

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    Standard 139-2019 -- Method of Testing for Rating Desiccant Dehumidifiers Utilizing Heat for the Regeneration Process (ANSI Approved)

    • Most Recent
  2. ASHRAE 139-2015


    Standard 139-2015 -- Method of Testing for Rating Desiccant Dehumidifiers Utilizing Heat for the Regeneration Process (ANSI Approved)

    • Historical Version
  3. ASHRAE 139-2007


    Standard 139-2007 -- Method of Testing for Rating Desiccant Dehumidifiers Utilizing Heat for the Regeneration Process (ANSI Approved)

    • Historical Version
  4. ASHRAE 139-1998


    Standard 139-1998 -- Method of Testing for Rating Desiccant Dehumidifiers Utilizing Heat for the Regeneration Process (ANSI approved)

    • Historical Version