Historical
ANSI Z21.78-2010/CSA 6.20-2010
Combination Gas Controls For Gas Appliances
Scope
Details test and examination criteria for combination gas controls having a maximum operating gas pressure of ╜ psi (3.45 kPa) with one or more of the following fuel gases: natural, manufactured, mixed, liquefied petroleum and liquefied petroleum gas-air mixtures.
CSA America, Inc. [csa]