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NFPA (Fire) 270

M00015897

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NFPA (Fire) 270 Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber, 1998 edition

standard by National Fire Protection Association, 01/01/1998

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Use this test method to measure smoke obscuration of materials up to 25mm in thickness when exposed to specified levels of thermal irradiance.