UL-823 › Standard for Electric Heaters For Use in Hazardous (Classified) Locations

UL-823 - 9TH EDITION - CURRENT
Show Complete Document History

Included in this current edition are the following subparts:

 9TH EDITION - Oct. 20, 2006
 CHANGE 11/07 - Nov. 15, 2007
 CHANGE 01/12 - Jan. 31, 2012
 CHANGE 04/16 - April 22, 2016
 CHANGE 04/19 - April 16, 2019
 CHANGE 01/21 - Jan. 11, 2021


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Document Number

UL-823

Revision Level

9TH EDITION

Status

Current

Publication Date

Oct. 20, 2006