UL-181A › Standard for Closure Systems for Use With Rigid Air Ducts
Included in this current edition are the following subparts:
4TH EDITION - Jan. 8, 2013
CHANGE 03/17 - March 22, 2017
CHANGE 12/21 - Dec. 29, 2021
CHANGE 03/17 - March 22, 2017
CHANGE 12/21 - Dec. 29, 2021
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Document Number
UL-181A
Revision Level
4TH EDITION
Status
Current
Publication Date
Jan. 8, 2013
Page Count
34 pages