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About This Item

 

Full Description

Standard 133 provides recommended practices and accurate measurement procedures for testing direct evaporative cooling devices under laboratory conditions to obtain rating information.

The 2015 edition of the standard makes a key change to the 2008 edition by simplifying the density correction to saturation effectiveness. Other improvements include updates to references and clarifications of mandatory language.

 

Document History

  1. ASHRAE 133-2015

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    Standard 133-2015 -- Method of Testing Direct Evaporative Air Coolers (ANSI Approved)

    • Most Recent
  2. ASHRAE 133-2008


    Standard 133-2008 -- Method of Testing Direct Evaporative Air Coolers (ANSI/ASHRAE Approved)

    • Historical Version
  3. ASHRAE 133-2001


    Standard 133-2001 -- Method of Testing Direct Evaporative Air Coolers (ANSI Approved)

    • Historical Version