34-2001
Designation and Safety Classification of Refrigerants (Includes ANSI/ASHRAE Addenda Listed in Appendix C; Errata: February 7@ 2002; Addendum A: June 22@ 2002; Addendas B@ D and E: January 30@ 2003; Addendas F@ G and H: July 3@ 2003; Addendum C: January 30