OXYGEN

Move victim to fresh air. Seek immediate medical attention/advice.

Symptoms: Oxygen is more toxic when inhaled at elevated pressures. Depending upon pressure and duration of exposure, pure oxygen at elevated pressures may cause cramps, dizziness, difficulty breathing, convulsions, edema and death.

None under normal use. Get medical attention if symptoms occur.

None under normal use. Get medical attention if symptoms occur.

Not an expected route of exposure.

Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.

None.

May cause or intensify fire; oxidizer. Will support and accelerate combustion of combustible materials (wood, paper, oil, debris, etc). Cylinders may rupture under extreme heat.

Continue to cool fire exposed cylinders until flames are extinguished. Damaged cylinders should be handled only by specialists.

Evacuate personnel to safe areas. Ensure adequate ventilation, especially in confined areas. Monitor oxygen level. Eliminate all ignition sources if safe to do so.

Prevent spreading of vapors through sewers, ventilation systems and confined areas.

Return cylinder to Messer or an authorized distributor.

Keep valves and fittings free from oil and grease. Use only equipment of compatible materials of construction. Open valve slowly. 'NO SMOKING' signs should be posted in storage and use areas. Protect cylinders from physical damage; do not drag, roll, slide or drop. When moving cylinders, use a cart. Never attempt to lift a cylinder by its valve protection cap. Never insert an object into valve cap openings. Use only with adequate ventilation. Use only with equipment rated for cylinder pressure. Use a backflow preventive device in piping. Close valve after each use and when empty. Ensure the complete gas system has been checked for leaks before use.

Store in cool, dry, well-ventilated area of non-combustible construction away from heavily trafficked areas and emergency exits. Cylinders should be stored upright with valve protection cap in place and firmly secured to prevent falling. Full and empty cylinders should be segregated. Use a 'first in-first out' inventory system.

Only experienced and properly instructed persons should handle gases under pressure.

Separate flammable gas cylinders from oxygen and other oxidizers by a minimum distance of 20 ft. or by a 5 ft. high barrier with a minimum fire resistance rating of a half an hour. 'NO SMOKING' signs should be posted. Do not store near combustible materials.

Ventilation systems. Use local exhaust in combination with general ventilation as necessary to keep oxygen concentrations above 19.5% and below 23.5%. Consider installation of leak detection systems in areas of use and storage. Systems under pressure should be regularly checked for leakages.

Work gloves. Gloves must be clean and free from grease or oil.

Wear safety glasses with side shields (or goggles).

No special protective equipment required.

Safety shoes are recommended when handling cylinders.

Stable under normal conditions.

Not reactive under normal conditions

May cause or intensify fire; oxidizer. Will support and accelerate combustion of combustible materials (wood, paper, oil, debris, etc).

None under recommended storage and handling conditions (see Section 7).

Reducing agents. Combustible material. Organic material. Oil. Grease.

None known.