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UL 1820:4ED 2004-10

Current

Current

The latest, up-to-date edition.

Fire Test of Pneumatic Tubing for Flame and Smoke Characteristics

Available format(s)

Hardcopy

Published date

10-15-2004

This revision of ANSI/UL 1820 dated September 24, 2021 is being issued to update the title page to reflect the most recent designation as a Reaffirmed American National Standard (ANS).

This is a test method for determining values of flame propagation distance and optical smoke density for pneumatic tubing that is to be installed in ducts, plenums, and other spaces used for environmental air.

DevelopmentNote
New child REV 4 2021 is now added.
DocumentType
Standard
Pages
0
PublisherName
Underwriters Laboratories
Status
Current

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