CSA ANSI Z21.56B-2000/4.7B-2000
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Addenda 2 to ANSI Z21.56-1998/CSA 4.7-M98 and ANSI Z21.56A-2000/CSA 4.7A-M00, Gas-Fired Pool Heaters
Scope Details test and examination criteria for pool heaters for use with natural, manufactured and mixed gases, liquefied petroleum gases, and LP gas-air mixtures. Pool heate
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