Ignition smoking

Impact sensitivity can be gauged by striking a few crystals of the compound on a metal last with the ball of a ball-pein hammer. Ignition, smoking, cracking or other sign of decomposition are considered hazardous. 

Base Ignition Smoke Sheii. See under Smoke Shells... 

Table 4.6 Instances of Contact Ignition/Smoking between Mixtures of Oxidizer, Ethylene Glycol and Sulfuric Acid, According to Improved Steel Dish Test(3)... 

None U dry (21) Stable CiCI t slowly hydrolyses mixture ignites Smoke in air water solution Acrid suffocaUog smoke None from eolid alii htly suffocating action by heavy smoke... 

Fire Hazards - Flash Point Not pertinent Flananable limits in Air (%) Not pertinent Fire Extinguishing Agents Flood with water, or use dry chemical, foam, carbon dioxide Fire Extinguishing Agents Not to be Used Not pertinent fecial Hazards of Combustion Products Toxic chlorinated biphenyls are formed in fires Behavior in Fire Solid may explode. Burns very rapidly when ignited. Smoke is unusually heavy when paste form is involved Ignition Temperature Data not available Electrical Hazard Data not available Burning Rate Not pertinent. 

Keywords corrosion, fire, fire hazard, flame spread, heat release, ignition, smoke emission, toxicity. 

Any kind of plant can be grown in a pot of earth by the action of rain water and the principles of the different plants are therefore the same. Fire is not an element of plants, since it is composed of the same principles as inflamed bodies the fire of bum ing charcoal results from the strong agitation of parts of its sulphur, saltpetre, etc., and the flame of a candle is only ignited smoke, and this smoke is composed of the same elements as the wax. Hence fire cannot be taken as a principle. As for air, it is always in water and consequently in the juices of plants, as is easily recognised by the effervescences of distilled liquors. Since the substances separated by the distillation of different kinds of plants are the same, chemistry can give no explanation of the differences. 

Many researchers have dedicated their efforts to understanding the fire risks and hazards of plastic materials. The most important fire risks and fire hazards are rate of heat release, rate of smoke production, and rate of toxic gas release [1]. Other factors include ignitability, ease of extinction, flammability of generated volatiles, and smoke obscuration. An early and high rate of heat release causes fast ignition and flame spread furthermore, it controls fire intensity, which is much more important than ignitability, smoke toxicity, or flame spread. The time for people to escape in a fire is also controlled by the heat release rate [2]. 

Panels reinforced with different fibres demonstrate distinct smoke profiles on ignition. Smoke initiation for phenolic resins is much slower with glass reinforcement than with graphite or aramid. The rate of generation follows a similar trend with glass being the slowest and aramid the fastest. 

Prior to the widespread acceptance of the cone calorimeter, use was made of the Heat Release Calorimeter developed at Ohio State University, per ASTM E 906. The level of heat flux is adjustable, but not as extensively as with the cone calorimeter. Heat release from combustion is recorded throughout the period of ignition. Smoke density is measured similarly to the cone calorimeter. ASTM E 1354 and E 906 data correlate at comparable levels of heat flux input. 

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