ANSI/ASHRAE 34 Addendum r-2012
Designation and Safety Classification of Refrigerants

Standard No.

ANSI/ASHRAE 34 Addendum r-2012

Release Date

2012

Published By

American National Standards Institute （ANSI)

Status

Be replaced

Replace By

ANSI/ASHRAE 34 Addendum R-2021

Latest

ANSI/ASHRAE 34 Addendum R-2021

Scope

This addendum adds toxicity Code Classification assignments for refrigerants R-421B to R-433A (inclusive), R-601a, and R-227ea to Tables 1 and 2.

ANSI/ASHRAE 34 Addendum r-2012 history

• 2021 ANSI/ASHRAE 34 Addendum R-2021 Designation and Safety Classification of Refrigerants
• 2012 ANSI/ASHRAE 34 Addendum r-2012 Designation and Safety Classification of Refrigerants