Historical
ANSI Z21.94a-2007/CSA 6.31a-2007
Addenda 1 to ANSI Z21.94-2006/CSA 6.31-2006, Automatic Flammable Vapor Sensor Systems and Components
The standards set forth herein apply to the first edition of the Standard for Automatic Flammable Vapor Sensor Systems and Components, ANSI Z21.94-2006/CSA 6.31-2006, 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.
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