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r MATHESON <br /> TRI+GAS <br /> ask...The Gas Professionals'" Page 3 of 8 <br /> FIRE AND EXPLOSION HAZARDS: Severe fire hazard. Severe explosion hazard. The vapor is heavier <br /> than air. Vapors or gases may ignite at distant ignition sources and flash back. Vapor/air mixtures are <br /> explosive. Electrostatic discharges may be generated by flow or agitation resulting in ignition or explosion. <br /> EXTINGUISHING MEDIA: carbon dioxide, regular dry chemical <br /> Large fires: Use regular foam or flood with fine water spray. <br /> FIRE FIGHTING: Move container from fire area if it can be done without risk. For fires in cargo or storage <br /> area: Cool containers with water from unmanned hose holder or monitor nozzles until well after fire is out. If <br /> this is impossible then take the following precautions: Keep unnecessary people away, isolate hazard area <br /> and deny entry. Let the fire burn. Withdraw immediately in case of rising sound from venting safety device <br /> or any discoloration of tanks due to fire. For tank, rail car or tank truck: Stop leak if possible without <br /> personal risk. Let burn unless leak can be stopped immediately. For smaller tanks or cylinders, extinguish <br /> and isolate from other flammables. Evacuation radius: 800 meters (1/2 mile). Do not attempt to extinguish <br /> fire unless flow of material can be stopped first. Flood with fine water spray. Cool containers with water <br /> spray until well after the fire is out. Apply water from a protected location or from a safe distance. Avoid <br /> inhalation of material or combustion by-products. Stay upwind and keep out of low areas. Evacuate if fire <br /> gets out of control or containers are directly exposed to fire. Evacuation radius: 500 meters (1/3 mile). <br /> Consider downwind evacuation if material is leaking. <br /> FLASH POINT: -108 F (-78 C) (CC) <br /> LOWER FLAMMABLE LIMIT: 3.6% <br /> UPPER FLAMMABLE LIMIT: 33% <br /> AUTOIGNITION: 882 F (472 C) <br /> 6. ACCIDENTAL RELEASE MEASURES <br /> WATER RELEASE: <br /> Subject to California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65). Keep out of <br /> water supplies and sewers. <br /> OCCUPATIONAL RELEASE: <br /> Avoid heat, flames, sparks and other sources of ignition. Stop leak if possible without personal risk. Reduce <br /> vapors with water spray. Keep unnecessary people away, isolate hazard area and deny entry. Remove <br /> sources of ignition. Ventilate closed spaces before entering. Notify Local Emergency Planning Committee <br /> and State Emergency Response Commission for release greater than or equal to RQ (U.S. SARA Section <br /> 304). If release occurs in the U.S. and is reportable under CERCLA Section 103, notify the National <br /> Response Center at(800)424-8802 (USA) or(202)426-2675 (USA). <br /> 7. HANDLING AND STORAGE <br /> STORAGE: Store and handle in accordance with all current regulations and standards. Protect from <br /> physical damage. Store outside or in a detached building. Inside storage: Store in a cool, dry place. Store in a <br />