UL 1821 BULLETIN-2011
UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (COMMENTS DUE: September 26@ 2011)

Standard No.

UL 1821 BULLETIN-2011

Release Date

2011

Published By

Underwriters Laboratories (UL)

Status

Be replaced 2015-08

Replace By

UL 1821 BULLETIN-2014

Latest

UL 1821-2019

UL 1821 BULLETIN-2011 history

• 1970 UL 1821-2019
• 2018 UL 1821 CRD-2018 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service - Section / Paragraph Reference: New Clauses 1.4 and 29A Subject: Pipe and Fittings Embedded in Concrete (Edition 3: August 25@ 2015)
• 2018 UL 1821 BULLETIN-2018 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service
• 2017 UL 1821 BULLETIN-2017 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (COMMENTS DUE: April 17@ 2017)
• 2015 UL 1821 BULLETIN-2015 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (COMMENTS DUE: June 15@ 2015)
• 2015 UL 1821-2015 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (Third Edition)
• 2014 UL 1821 BULLETIN-2014 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (COMMENTS DUE: December 1@ 2014)
• 2011 UL 1821 BULLETIN-2011 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (COMMENTS DUE: September 26@ 2011)
• 2006 UL 1821 BULLETIN-2006 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service
• 2004 UL 1821 BULLETINS-2004 1/29/2004 (20p)
• 2004 UL 1821 BULLETIN-2004 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service
• 2003 UL 1821-2003 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (Second Edition; Reprint with Revisions through and including December 15@ 2011)
• 2001 UL 1821 BULLETIN-2001 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service
• 1994 UL 1821-1994 UL Standard for Safety Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service (First Edition)