CSA/AM - ANSI Z21.78/CSA 6.20
Combination Gas Controls For Gas Appliances
|Publication Date:||1 January 2008|
Preface: The standards set forth herein apply to the third edition of the Standard for Combination Gas Controls For Gas Appliances, ANSI Z21.78-2005 • CSA 6.20-2005 and ANSI Z21.78a-2007 • CSA 6.20a-2007, and supersede corresponding standards therein. Following their preparation by the supervising Technical Advisory Group, they were accepted by the American National Standards Institute (ANSI) and the Interprovincial Gas Advisory Council (IGAC), and subsequently approved.
NOTE: Changes, other than editorial, are denoted by a vertical line in the margin.