UL CSDS Proposal
Published Date: July 28, 2006
Last Revision: April 06, 2023
Scope
025180-000000-0000001 Scope
1.1 These requirements apply to air dispersion system materials for use in accordance with the following Installation Codes:
a) Standard of the National Fire Protection Association for the Installation of Air-Conditioning and Ventilating Systems, NFPA No. 90A;
b) Standard of the National Fire Protection Association for the Installation of Warm Air Heating and Air-Conditioning Systems, NFPA No. 90B;
c) The International Mechanical Code® (IMC); and
d) The Uniform Mechanical CodeTM (UMC).
1.2 The air dispersion system materials covered by these requirements include preformed lengths of fabric or non-fabric products intended to convey and distribute air.
1.3 These air dispersion system materials are intended to be limited for use in air handling systems in exposed locations operating under positive pressure.
Exception: Air dispersion systems that have been tested to Section 10A (Collapse Test) and labeled with the rated negative pressure are not limited to operating under positive pressure.
1.4 These requirements do not intend to address the joints between sections of air dispersion system materials or end connections.
Summary of Topics m2518_1_20060728_sum.htmlSubject 2518 (1004-5)
Bulletin Dated: July 28, 2006
SUMMARY OF TOPICS
The following changes in requirements are being proposed:
1) For Preliminary Review Only: The proposed first edition of UL 1004-5, Fire Pump Motors, including the following changes: a) A change in the mathematical formula for slip; and b) Elimination of the Drip Test
Back to Standard 2518, Edition 1