CSA ANSI Z21.87b-2005/CSA 4.6b-2005
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Addenda 2 to ANSI Z21.87-1999/CSA 4.6-M99, Automatic Gas Shutoff Devices For Hot Water Supply Systems
Scope
Datails test and examination criteria for automatic gas shutoff valves and devices which operate when the temperature sensing element is at 210 degrees F (99 degrees C) or less.
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