Standard 268A, Edition 4
UL 268A

Smoke Detectors for Duct Application

UL Standard Edition 4 Published Date: December 11, 2008 Last Revision: August 25, 2023 ANSI Approved: August 22, 2023

$505.00-$1,258.00

Revisions and Related Documents

Revisions
Red Line Std. (8)

Date      
August 25, 2023 Redline Revision
August 18, 2020 Redline Revision
August 12, 2016 Redline Revision
October 02, 2014 Revision
September 25, 2009 Revision
Showing 10 of XX
Show All

CSDS
Proposals (9)

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.

×

July 07, 2023
February 03, 2023
May 23, 2022
May 29, 2020
April 24, 2020
July 01, 2016
January 21, 2016
August 01, 2014
May 08, 2009
Showing 10 of XX
Show All

UL LLC CRD (0)

Showing 10 of XX
Show All None available.
Showing 10 of XX
Show All

Other Updates (2)

Showing 10 of XX
Show All
Bulletin   

Bulletins

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

×
Summary of Topics (SOT)
April 23, 2014 View
April 23, 2009 View
Showing 10 of XX
Show All
Showing 10 of XX
Show All
Showing 10 of XX
Show All
Showing 10 of XX
Show All
Showing 10 of XX
Show All

Referenced Standards (31)

Below is a list of UL Standards referenced in UL 268A

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 Standard for Thermoplastic-Insulated Wires and Cables
94 7 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
217 10 Smoke Alarms
224 7 Extruded Insulating Tubing
228 5 Door Closers-Holders, With or Without Integral Smoke Detectors
268 8 Smoke Detectors for Fire Alarm Systems
310 10 Electrical Quick-Connect Terminals
486E 6 Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
510 10 Polyvinyl Chloride, Polyethylene, and Rubber Insulating Tape
796 12 Printed Wiring Boards
864 11 Control Units and Accessories for Fire Alarm Systems
1059 5 Terminal Blocks
1439 5 Tests for Sharpness of Edges on Equipment
1730 4 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 3 Fuseholders - Part 1: General Requirements
4248-4 2 Fuseholders - Part 4: Class CC
4248-5 2 Fuseholders - Part 5: Class G
4248-6 2 Fuseholders - Part 6: Class H
4248-8 3 Fuseholders - Part 8: Class J
4248-9 1 Standard for Fuseholders - Part 9: Class K
5085-1 1 Low Voltage Transformers - Part 1: General Requirements
5085-2 2 Low Voltage Transformers - Part 2: General Purpose Transformers
4248-11 1 Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse
4248-12 2 Standard for Fuseholders - Part 12: Class R
4248-15 1 Standard for Fuseholders - Part 15: Class T
486A-486B 3 Wire Connectors
Showing 10 of XX
Show All

Reverse Referenced Standards (1)

UL 268A is referenced in the following list of UL Standards

Showing 10 of XX
Show All

The cost to purchase this Standard varies depending on whether you are ordering a hardcopy, PDF or combination of the two. We also offer two different types of subscriptions: a one year and a three year.

You will be able to choose your purchase options on the following pages.

×
×
×
×
×

You have one or more subscriptions that will expire soon.

×

You have one or more licenses to assign

×

Additional information required

To serve you better, please update your account details.

Featured Standards


Recently Published











Coming Soon

UL 48
Electrical Signs
Revision Pages

UL/ULC 25
Meters for Flammable and Combustible Liquids and LP-Gas
Revision Pages

UL 155
Tests for Fire Resistance of Vault and File Room Doors
Revision Pages

UL 310
Electrical Quick-Connect Terminals
New Edition

UL 19
Lined Fire Hose and Hose Assemblies
Revision Pages

UL 104
Elevator Door Locking Devices and Door or Gate Closed Detection Means
New Edition

UL 217
Smoke Alarms
Revision Pages

UL 294
Access Control System Units
Revision Pages
×

Email Verification Required

To enhance security and protect our community from fraudulent activity, we require email address confirmation before orders can be placed. This step ensures that all orders come from verified sources, helping us maintain a safe and trusted environment for everyone. Thank you for your cooperation.

To resend the confirmation email please click here. The confirmation email will look like the sample below.

Sample

example email
×