ASTM-E2768 2011

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E2768-11 Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials (30 min Tunnel Test)

Published By	Publication Date	Number of Pages
ASTM	2011	4

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Categories: 13.220.50 - Fire-resistance of building materials and elements, 91.100.01 - Construction materials in general, ASTM

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Description

1.1 The purpose of this fire-test-response standard is to evaluate the ability of a product to limit the surface spread of flame when evaluated for 30 min. This fire-test-response standard uses the apparatus and procedure of Test Method E84 with the total test period extended to 30 min.

1.2 Building applications affecting fire and life safety often require products with specific criteria for surface spread of flame and flame spread index. The resulting performance characteristics included in the conditions of classification for this fire-test-response standard are intended to be used for regulatory purposes to determine the suitability of materials or products for use in buildings under specified conditions where significantly reduced surface burning characteristics are required.

1.3 Materials and products that are beyond the scope of Test Method E84 are beyond the scope of this standard.

1.4 Materials or products which melt, drip or delaminate to the extent that the continuity of the flame front is destroyed are beyond the scope of this standard.

Note 1Testing of materials that melt, drip, or delaminate to such a degree that the continuity of the flame-front is destroyed, results in low flame spread indices that do not relate directly to indices obtained by testing materials that remain in place. Materials or products that melt, drip, or delaminate, or that cannot support their own weight, have the potential for demonstrating reduced flame spread results as compared to the flame spread results where the materials or products remain in place during testing.

1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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

1.7 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 the materials, products, or assemblies under actual fire conditions

1.8 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.

1.9 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus/Test Equipment Hazards Sampling, Test Specimens and Test Units Calibration and Standardization Conditioning Procedure Interpretation of Results
3	Conditions of Classification Report Precision and Bias Keywords X1. COMMENTARY X1.1 Introduction
4	X1.2 Development of this Standard X1.3 Continued Progressive Combustion and Continued Propagation of Fire in NFPA 101

Additional information

Standard Title	E2768-11 Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials (30 min Tunnel Test)
Published Code	ASTM
Publication Date	2011
Pages Count	4
ICS Codes	13.220.50 - Fire-resistance of building materials and elements 91.100.01 - Construction materials in general

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ASTM-E2768 2011

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