UL-1478A › Standard for Pressure Relief Valves for Sprinkler Systems
UL-1478A
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1ST EDITION
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CURRENT
Included in this current edition are the following subparts:
1ST EDITION - May 20, 2013
CHANGE 06/13 - June 5, 2013
CHANGE 08/17 - Aug. 4, 2017
CHANGE 06/22 - June 17, 2022
CHANGE 06/13 - June 5, 2013
CHANGE 08/17 - Aug. 4, 2017
CHANGE 06/22 - June 17, 2022
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This document is available in Paper format.
Document Number
UL-1478A
Revision Level
1ST EDITION
Status
Current
Publication Date
May 20, 2013
Page Count
14 pages