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ASTM E662 - 21ae1

Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials

Warning: ASTM standards for reading are viewed through the client area. Thefilescannot be downloaded.
Edition date: 2021-06-01
In Force
Available languages: English
Summary:

Keywords: fire; fire-test response standard; smoke; smoke chamber; smoke density; smoke obscuration; solids; specific optical density ;
Scope:

1.1 This fire-test-response standard covers determination of the specific optical density of smoke generated by solid materials and assemblies mounted in the vertical position in thicknesses up to and including 1 in. (25.4 mm).

1.2 Measurement is made of the attenuation of a light beam by smoke (suspended solid or liquid particles) accumulating within a closed chamber due to nonflaming pyrolytic decomposition and flaming combustion.

1.3 Results are expressed in terms of specific optical density which is derived from a geometrical factor and the measured optical density, a measurement characteristic of the concentration of smoke.

1.4 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.

1.5 This standard measures and describes 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.

1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ICS: 17.180.99-Other standards related to optics and optical measurements, 13.220.40-Ignitability and burning behaviour of materials and products
CTN: E05.21 - E05.21

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