TOXIC; may be fatal if inhaled.
Vapors are extremely irritating and corrosive.
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
Fire will produce irritating, corrosive and/or toxic gases.
Runoff from fire control may cause pollution.
Some may burn, but none ignite readily.
Vapors from liquefied gas are initially heavier than air and spread along ground.
Some of these materials may react violently with water.
Containers may explode when heated.
Ruptured cylinders may rocket.
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.
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.
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".
If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions.
Small Fires
Dry chemical or CO2.
Large Fires
Water spray, fog or regular foam.
Move containers from fire area if you can do it without risk.
Do not get water inside containers.
Damaged cylinders should be handled only by specialists.
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.
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.
If possible, turn leaking containers so that gas escapes rather than liquid.
Prevent entry into waterways, sewers, basements or confined areas.
Do not direct water at spill or source of leak.
Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.
Isolate area until gas has dispersed.
Move victim to fresh air.
Call 911 or emergency medical service.
Apply artificial respiration if victim is not breathing.
Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes.
In case of contact with liquefied gas, thaw frosted parts with lukewarm water.
In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes.
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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Last updated: 2003-01-15 Top of Page Important Notices