Smoke generation tests

Smoke flavoring, 12 48 Smoke generation tests, 19 588 Smoke point, of fats and oils, 10 822 Smoke retardants, molybdenum compounds in, 17 39 Smoke suppression, by ethylene-acrylic elastomers, 10 700 Smoking, age-related macular degeneration and, 17 659 Smoky quartz color, 7 337... 

Miscellaneous chemicals are used to modify the final properties of rigid polyurethane foams. Eor example, halogenated materials are used for flammabihty reduction, diols may be added for toughness or flexibiUty, and terephthalate-based polyester polyols may be used for decreased flammabiUty and smoke generation. Measurements of flammabihty and smoke characteristics are made with laboratory tests and do not necessarily reflect the effects of foams in actual fire situations. 

Withdrawn) 1974 AMD 1 Laboratory methods of test for determination of smoke generation charactenstics of cellular plastics and cellular rubber materials. Part 1 Method for testing a 25 mm cube test specimen of low density material (up to 130 kg/metres cubed) to continuous flaming conditions (AMD 7688) dated 15 July 1993. Withdrawn, superseded by BS ISO 5659-2 1994... 

Withdrawn) 1974 AMD 1 Laboratory methods of test for determination of smoke generation charactenstics of cellular plastics and cellular rubber materials. Superseded by BS ISO 5659-2 1994... 

Smoke is not a uniform substance and its composition depends on the exact conditions under which it was generated. Therefore, the composition of the smoke generated from the same material in different tests can vary broadly and, consequently, so will its toxicity. 

Because of the lack of suitable standard rate of heat, smoke and toxic gas generation tests, the 1988 UK regulations are based on ignition resistance of individual materials. This contradicts the basic requirements for the fire testing of composites and of hazard related tests and as such it may be possible to develop materials which meet the requirements but which produce hazardous products. 

Table II. Smoke Generation in a Room Corner Burn Test and in the NBS Smoke Chamber...

Standard Research Test Method for Determining Smoke Generation of Solid Materials (similar to ASTM E 662). 

ISO 5659-1 1996 Plastics - Smoke generation - Part 1 Guidance on optical-density testing ISO 5659-2 1997 Plastics - Smoke generation - Part 2 Determination of optical density by a single-chamber test... 

Analysts have advised him that the delivery systems can take out almost every occupant in the entire target area. The smoke generators are the latest in design. They worked extremely well in all the tests, providing a smooth release and a uniform distribution. The colonel puts his hand on the acetate-covered map, dragging tanned fingers across a crayon-shaded area where most of the terrorists are concentrated. 

Polyolefins When used in conjunction with a halogen-based flame retardant, this zinc borate can partially replace antimony oxide (30%-40%) and still maintain the same fire test performance. In addition, it can improve aged elongation properties, increase char formation, and decrease smoke generation. The B203 moiety in zinc borate can also provide afterglow suppression (Table 9.6). 

ASTM E 662 Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials. ASTM International, West Conshohocken, PA. 

ISO 5659-2 Plastics—Smoke Generation—Part 2 Determination of Optical Density by a Single-Chamber Test. International Organization for Standardization, Geneva, Switzerland. 

---