NDLI: Engineering Variables to Replace the Concept of ‘Noncombustibility’

Content Provider	Springer Nature Link
Author	Babrauskas, Vytenis
Copyright Year	2016
Abstract	The concept of noncombustibility evolved in the early days of building codes, before quantitative methods of measuring and assessing components of fire hazard were available. ‘Noncombustible’ lacks a technical definition of general scope, but in the US codes, which are the primary focus of this study, it is defined as a material which meets the criteria of the ASTM E136 test. The hazard variables underlying the noncombustibility concept are examined in this study. In view of today’s state of the art, it is shown that noncombustibility requirements, in most cases, constitute a misapplication of fire safety principles and that their use should be discontinued, in preference of using variables that express quantitative fire safety principles. Heat release rate (HRR) is the primary variable which correctly establishes the relevant hazard. In recent years, some regulations have been promulgated which use bench-scale HRR test results directly for this purpose. The ultimate hazard to be addressed, however, is the full-scale HRR behavior. When the hazard involves fires which may spread over surface linings, however, the full-scale HRR is not simply directly scaled to the bench-scale HRR. To quantify this hazard properly, additional properties of the material which govern the flame spread behavior need to be considered. A simple, easy-to-use method for this purpose are described, which is based solely on data obtainable from the Cone Calorimeter (ASTM E1354; ISO 5660) test. Validation of the concept against room-scale data is provided and is shown to be successful.
Starting Page	353
Ending Page	373
Page Count	21
File Format	PDF
ISSN	00152684
Journal	Fire Technology
Volume Number	53
Issue Number	1
e-ISSN	15728099
Language	English
Publisher	Springer US
Publisher Date	2016-02-23
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ASTM E136 test Building codes Cone calorimeter Flame spread Heat release rate ISO 9705 test Noncombustibility Surface linings Civil Engineering Classical Mechanics Characterization and Evaluation of Materials Physics
Content Type	Text
Resource Type	Article
Subject	Materials Science Safety, Risk, Reliability and Quality

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Using Heat Release Rate to Assess Combustibility of Building Products in the Cone Calorimeter

Comparison of Japanese and European Fire Classification Systems for Surface Linings

Uncertainty of Heat Release Rate Calculation of the ISO5660–1 Cone Calorimeter Standard Test Method

Reaction-to-fire testing and modeling for wood products, Twelfth annual BCC Conference on Flame Retardancy : May 21-23 (2001)

Ignition and Opposed Flow Flame Spread Using a Reduced Scale Attachment to the Cone Calorimeter

Comments to the Paper Uncertainty of Heat Release Rate Calculation of the ISO5660-1 Cone Calorimeter Standard Test Method

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Influences of Talc on Fire Performance of Low Density Polyethylene

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Engineering Variables to Replace the Concept of ‘Noncombustibility’

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