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ASHRAE Membership

ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Over 55,000 individuals from more than 100 nations belong to the Society.

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ASHRAE members earn 15% off publications. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.
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Each month, all over the world, ASHRAE chapters convene for an informational program featuring a speaker or topic that is key to professionals in the industry. Meet with your peers and share ideas.
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Resources & Publications

Standards 15 & 34

Refrigeration Resources

Refrigeration is critical for industrial processes, food storage, and medical applications and the cooling cycle lies at the heart of air conditioning.

Expert guidance is essential.


Standards 15 and 34

Standard 15-2013 (packaged w/ Standard 34-2013) -- Safety Standard for Refrigeration Systems and Designation and Classification of Refrigerants (ANSI Approved)

Standard 34 describes a shorthand way of naming refrigerants and assigns safety classifications based on toxicity and flammability data, while Standard 15 establishes procedures for operating equipment and systems when using those refrigerants. ASHRAE offers the standards as a set.

$107 ($89 ASHRAE Member) / 82 pages / 2013


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What's New:

Standard 15-2013:
  • Clarifies location requirements for machinery room mechanical ventilation
  • Harmonizes Standard 15 with the 2012 International Mechanical Code (IMC) section 1101.10.
  • Removes obsolete Informative Appendix A pertaining to calculating allowable concentration for refrigerant blends
  • Removes obsolete information as follow-up to removal of Standard 15-2007 Appendix B
 Standard 34-2013:
  • Clarifies and modifies definitions
  • Adds 1 new single-compound refrigerant and 14 new refrigerant blends
  • Clarifies section 7.3, Requirements for Data Calculations, and 9.6, Toxicity Information, for consistency
  • Changes the flammability safety classification of refrigerants 32, 143a, 717 and 1234yf from Class 2 to Class 2L based on the optional burning velocity measurement
  • Modifies the definition of Workplace Environmental Exposure Level (WEEL) and adds a reference for AIHA WEEL
  • Clarifies the conditions for bubble point in Sections B2.4.1 and B2.4.2 of Normative Appendix B.2, Fractionation Analysis
  • Better defines experimental verification of models used to identify WCFF fractionated compositions, and allows vaporliquid equilibrium (VLE) data only to be used for experimental verification

Refrigeration Commissioning Guide

The Essential Guide for Commissioning Refrigeration Systems

The first of its kind, Refrigeration Commissioning Guide for Commercial and Industrial Systems provides guidance to owners and managers of commercial and industrial facilities that use refrigeration systems to help ensure that project requirements are met and owners' expectations are achieved.

Learn more


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