NFPA 253: Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source
Current Edition: 2015 Next Edition: 2019

Alerts: Receive e-mail updates on this document Manage my alerts

Alert Me
Please confirm you would like to be alerted the next time we post new information about document .
Alerts will be sent to the e-mail address on your user profile:

Thank you for signing up for alerts.

Committee members: Sign-in to view your documents.
Buy This Edition
Membership - New or Renew
Item #: MBR
List: $165.00
Member: $165.00

What is NFPA 253?
NFPA 253: Document Scope

1.1 Scope. 1.1.1 This fire test response standard describes a procedure for measuring critical radiant flux behavior of horizontally mounted floor covering systems exposed to a flaming ignition source in a graded, radiant heat energy environment within a test chamber. 1.1.2* This fire test response standard measures the critical radiant flux at flameout and provides a basis for estimating one aspect of fire exposure behavior for floor covering systems. A.1.1.2 The imposed radiant flux simulates the thermal radiation levels likely to impinge on the floors of a building whose upper surfaces are heated by flames, hot gases, or both from a fully developed fire in an adjacent room or compartment.

This standard presents a method for evaluating critical radiant flux of floor coverings in corridors or exitways, thus providing a basis for estimating one aspect of the fire exposure behavior of floor covering systems.

Official document scope
What does NFPA 253 address?

This fire test response standard describes a procedure for measuring the critical radiant flux of horizontally mounted floor covering systems exposed to a flaming ignition source in a graded, radiant heat energy environment within a test chamber. Annexes discuss how to calibrate an apparatus, mounting methods, sample data logs, application and interpretation of results, safety precautions, and more.



Articles and Reports
News about NFPA codes and standards

Find a code or standard