smoke density

smoke density

The ratio of (a) the smoke emitted by a burning material to (b) the smoke emitted by a standard material.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Lexan FRA 25C sheet is a coated, flame retardant polycarbonate sheet that passes ASTM E162 for flame spread; ASTM E662 for optical smoke density and ASTM E1354 for heat release.
The intensive tests include the vertical flame, CWZ (fire, water and mechanical impact), smoke density measurement and fire resistance tests where the cables are verified for circuit integrity during a fire.
Natural-FR in third party laboratory testing has passed the following criteria for a flooring application, and is authorized for use in entrance matting in London Underground stations: smoke density, smoke toxicity, heat release rate, flame spread, ignitability, and dry and wet slip resistance.
How best to meet the requirements for fire resistance (how fast a cable burns), smoke density (the quantity of smoke they produce), and toxicity (the potential effect on humans from the smoke), was an issue for years that pitted "halogen-free" supporters against major manufacturers of traditional cable and conduit materials.
The new epoxy resin system, EPON(TM) FlameX Resin 9600 / EPIKURE(TM) FlameX Curing Agent 9700, is halogen and phenolic free and, in infused glass laminate composite parts, has passed various burn tests for vertical burn, smoke density and smoke toxicity.
8, significant difference is observed between smoke density of various fuels at noload and full load, but the change was very insignificant at low load of the engine.
The key features of EN45545 materials are high oxygen indexes and very low smoke density and smoke toxicity.
This allows favorable smoke density and toxicity values to be attained and also complies with the WEEE and ROHS directives.
Lexan Light sheets meet typical industry flame, smoke density and toxicity requirements (BSS7239, ABD0031).
The unfilled AvaSpire PAEK grade also meets Federal Aviation Administration (FAA) flammability, smoke density, and toxic gas emission (FST) requirements.