ANSI Z21.22

Relief Valves for Hot Water Supply Systems

Org/Number ID	ANSI Z21.22
Alternate Organization ID / number	ANSI Z21.22a; ANSI Z21.22b; CSA 4.4
Version(s)	1999 (ANSI Z21.22); 1990 (ANSI Z21.22a); 1986 (ANSI Z21.22); 1984 (ANSI Z21.22b); 1983 (ANSI Z21.22a); 1979 (ANSI Z21.22); 1973 (ANSI Z21.22b); 1972 (ANSI Z21.22a); 1971 (ANSI Z21.22)
Bin #	621
Comments
Status	Present
Record last updated	January 4, 2023, 3:24 pm

This is not the most recent edition of this standard.

Newer edition note: CSA 4.4-2015/ANSI Z21.22-2015 (R2020)