Historical
ANSI Z21.80b-2010/CSA 6.22b-2010
Addenda 2 to ANSI Z21.80-2003/CSA 6.22-2003, Line Pressure Regulators
Details test and examination criteria for line pressure regulators, either individual or in combination with other pressure protection devices intended for application in natural gas piping systems between the service regulator and the gas appliance's).
CSA America, Inc. [csa]