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Standard for Smoke Detectors for Duct Application

UL Standard
Standard 268A, Edition 4 Edition Date: December 11, 2008 $505.00-$1,258.00

Revisions and Related Documents

Revisions (3)

Revision - These documents only contain the revised pages. The Standard document includes all available Revisions.
August 12, 2016
October 02, 2014
September 25, 2009
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CSDS
Proposals (4)

CSDS Proposal

CSDS Proposals

An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose:

  • A revision of a single or multiple requirement(s).
  • A complete new edition of an existing Standard or Outline.
  • A new Standard or Outline that has not previously been published.

CSDS Proposals provide access to view the proposal and submit comments within UL's Collaborative Standards Development System (CSDS) appropriately.

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Summary of Topics (SOT)
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CRD/PAGs (0)

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Other Updates (2)

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Bulletin

Bulletins

These bulletins are not used in CSDS. These are announcement and report type bulletins.

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April 23, 2014 View
April 23, 2009 View
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Referenced Standards (28)

StandardEditionTitle
20 14 General-Use Snap Switches
44 19 Thermoset-Insulated Wires and Cables
62 20 Flexible Cords and Cables
73 10 Standard for Motor-Operated Appliances
83 16 Thermoplastic-Insulated Wires and Cables
94 6 Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
217 9 Standard for Smoke Alarms
224 7 Extruded Insulating Tubing
228 5 Standard for Door Closers-Holders, With or Without Integral Smoke Detectors
268 7 Smoke Detectors for Fire Alarm Systems
486A-486B 3 Wire Connectors
510 10 Standard for Polyvinyl Chloride, Polyethylene and Rubber Insulating Tape
796 11 Standard for Printed-Wiring Boards
864 10 Standard for Control Units and Accessories for Fire Alarm Systems
1439 5 Standard for Tests for Sharpness of Edges on Equipment
1730 4 Standard for Smoke Detector Monitors and Accessories for Individual Living Units of Multifamily Residences and Hotel/Motel Rooms
2111 1 Standard for Overheating Protection for Motors
4248-1 2 Fuseholders - Part 1: General Requirements
4248-4 1 Fuseholders - Part 4: Class CC
4248-5 1 Fuseholders - Part 5: Class G
4248-6 2 Fuseholders - Part 6: Class H
4248-8 2 Fuseholders - Part 8: Class J
4248-9 1 Fuseholders - Part 9: Class K
4248-11 1 Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse
4248-12 2 Fuseholders - Part 12: Class R
4248-15 1 Fuseholders - Part 15: Class T
5085-1 1 Low Voltage Transformers - Part 1: General Requirements
5085-2 1 Low Voltage Transformers - Part 2: General Purpose Transformers
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Red Line Standards (1)

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