168 Carbon Monoxide (Refrigerated Liquid)                                               hpbutton.gif (1641 bytes)

POTENTIAL HAZARDS

HEALTH

* TOXIC; Extremely Hazardous. * Inhalation extremely dangerous; may be fatal. * Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. * Odorless, will not be detected by sense of smell.

FIRE OR EXPLOSION

* EXTREMELY FLAMMABLE. * May be ignited by heat, sparks or flames. * Flame may be invisible. * Containers may explode when heated. * Vapor explosion and poison hazard indoors, outdoors or in sewers. * Vapors from liquefied gas are initially heavier than air and spread along ground. * Vapors may travel to source of ignition and flash back. * Runoff may create fire or explosion hazard.

PUBLIC SAFETY

* CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. * Isolate spill or leak area immediately for at least 100 to 200 meters (330 to 660 feet) in all directions. * Keep unauthorized personnel away. * Stay upwind. * Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). * Keep out of low areas. * Ventilate closed spaces before entering.

PROTECTIVE CLOTHING

* Wear positive pressure self-contained breathing apparatus (SCBA). * Wear chemical protective clothing which is specifically recommended by the manufacturer. It may provide little or no thermal protection. * Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations. * Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.

EVACUATION

Spill:   See the Table of Initial Isolation and Protective Action Distances for highlighted substances. For non-highlighted substances, increase, in the downwind direction, as necessary, the isolation distance shown under "PUBLIC SAFETY".

Fire:   If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

EMERGENCY RESPONSE

FIRE

* DO NOT EXTINGUISH A LEAKING GAS FIRE UNLESS LEAK CAN BE STOPPED.

Small Fires:  Dry chemical, CO2 or water spray.

Large Fires:  * Water spray, fog or regular foam. * Move containers from fire area if you can do it without risk.

Fire involving Tanks:  * Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. * Cool containers with flooding quantities of water until well after fire is out. * Do not direct water at source of leak or safety devices; icing may occur. * Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. * ALWAYS stay away from tanks engulfed in fire.

SPILL OR LEAK

* ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). * All equipment used when handling the product must be grounded. * Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. * Do not touch or walk through spilled material. * Stop leak if you can do it without risk. * Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. * Do not direct water at spill or source of leak. * If possible, turn leaking containers so that gas escapes rather than liquid. * Prevent entry into waterways, sewers, basements or confined areas. * Isolate area until gas has dispersed.

FIRST AID

* Move victim to fresh air. * Call 911 or emergency medical service. * Apply artificial respiration if victim is not breathing. * Administer oxygen if breathing is difficult. * Remove and isolate contaminated clothing and shoes. * In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. * In case of contact with liquefied gas, thaw frosted parts with lukewarm water. * Keep victim warm and quiet. * Keep victim under observation.    * Effects of contact or inhalation may be delayed. * Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves.

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