UL-441 › Complete Document History
Standard for Gas Vents
| Complete Current Edition: |
11TH EDITION - Standard for Gas Vents - April 8, 2016
CHANGE 07/16 - REVISION CHANGE - CODE C - July 27, 2016
CHANGE 08/19 - REVISION CHANGE - CODE C - Aug. 28, 2019
CHANGE 04/24 - REVISION CHANGE - CODE C - April 2, 2024
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Obsolete Revision Information: |
CHANGE 06/14 - REVISION CHANGE - CODE C - June 12, 2014
CHANGE 05/10 - REVISION CHANGE - CODE C - May 18, 2010
10TH EDITION - Standard for Gas Vents - March 5, 2010
9TH EDITION - Standard for Gas Vents - Jan. 16, 1996
1991 EDITION - Standard for Gas Vents - Jan. 1, 1991
1990 EDITION - Standard for Gas Vents - June 27, 1990
1986 EDITION - Standard for Gas Vents - March 26, 1986
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