ANSI/ASHRAE 34-2010
Number Designation and Safety Classification of Refrigerants

Standard No.

ANSI/ASHRAE 34-2010

Release Date

2010

Published By

American National Standards Institute （ANSI)

Status

Be replaced

Replace By

ANSI/ASHRAE 34-2022

Latest

ANSI/ASHRAE 34-2022

Scope

This standard is intended to establish a simple means of referring to common refrigerants instead of using the chemical name, formula, or trade name. It also establishes a uniform system for assigning reference numbers and safety classifications to refrigerants. 4/24/1992

ANSI/ASHRAE 34-2010 history

• 1970 ANSI/ASHRAE 34-2022 Includes ANSI/ASHRAE addenda listed in Appendix J Designation and Safety Classification of Refrigerants
• 2010 ANSI/ASHRAE 34-2010 Number Designation and Safety Classification of Refrigerants
• 2001 ANSI/ASHRAE 34-2001 Number Designation and Safety Classification of Refrigerants