ASTM-E648 2008

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E648-08 Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source

Published By	Publication Date	Number of Pages
ASTM	2008	16

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Category: ASTM

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Description

1.1 This fire-test-response standard covers 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 in a test chamber. A specimen is mounted over underlayment, a simulated concrete structural floor, bonded to a simulated structural floor, or otherwise mounted in a typical and representative way.

1.2 This fire-test-response standard measures the critical radiant flux at flame-out. It provides a basis for estimating one aspect of fire exposure behavior for floor-covering systems. 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 or hot gases, or both, from a fully developed fire in an adjacent room or compartment. The standard was developed to simulate an important fire exposure component of fires that develop in corridors or exitways of buildings and is not intended for routine use in estimating flame spread behavior of floor covering in building areas other than corridors or exitways. See Appendix X1 for information on proper application and interpretation of experimental results from use of this test.

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes, excluding those in tables and figures, shall not be considered as requirements of this standard.

1.5 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions but does not by itself incorporate all factors required for fire-hazard or fire-risk assessment of materials, products, or assemblies under actual fire conditions. .

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 7.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use FIG. 1
3	Flooring Radiant Panel Test Chamber—Construction and Instrumentation FIG. 2
4	FIG. 3
5	FIG. 4
6	Hazards Sampling Test Specimens FIG. 5
7	FIG. 6
8	Radiant Heat Energy Flux Profile Standardization Conditioning Procedure FIG. 7
9	Calculation Report FIG. 8
10	Keywords A1. PROCEDURE FOR CALIBRATION OF RADIATION INSTRUMENTATION A1.1 Radiation Pyrometer A1.2 Total Heat Flux Meter A1.3 Potentiometer
11	X1. COMMENTARY ON CRITICAL RADIANT FLUX TEST X1.1 Introduction X1.2 Nature of the Test X1.3 Experimental Studies of Relevance
12	X1.4 Summary FIG. X1.1
13	X2. GUIDELINE TO MOUNTING METHODS X2.1 Introduction X2.2 Mounting Procedures FIG. X1.2
14	X2.3 Resilient Flooring X2.4 Hardwood Flooring
15	X3. HISTORIC PHOTOGRAPH X3.1 REFERENCES FIG. X3.1

Additional information

Standard Title	E648-08 Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source
Published Code	ASTM
Publication Date	2008
Pages Count	16

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ASTM-E648 2008

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