UL-181B › Standard for Closure Systems for Use With Flexible Air Ducts and Air Connectors
Included in this current edition are the following subparts:
3RD EDITION - Jan. 8, 2013
CHANGE 12/21 - Dec. 29, 2021
CHANGE 12/21 - Dec. 29, 2021
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Document Number
UL-181B
Revision Level
3RD EDITION
Status
Current
Publication Date
Jan. 8, 2013
Page Count
28 pages