Gas
Plants
Buyer's
Guide
All personnel being employed for work in connection with oxygen air should be cautioned concerning the hazards involved and precautions to be observed.
Safety Precautions for Handling Oxygen Plants
- Oil or grease should not be allowed to come in contact with
compressed or liquid oxygen. This contact may result in explosion.
- Thoroughly wash all oxygen fittings, valves and parts before
installation. Tricolor ethylene or carbon tetra chloride can be used
for washing.
- Do not lubricate oxygen valves, regulators, gauges or fitting
with oil or any other substance.
- Do not use any pipe jointing on oxygen pipe threads except
approved for oxygen service. Ordinary pipe jointing contains grease
as a lubricant and will catch fire.
- Compressor and Expander lubricating oil consumption must be regularly checked any excessive consumption must be investigated immediately and the cause rectified.
PRODUCT IDENTIFICATION
Product Name : oxygen
Product Formula : O2
State : Gaseous
COMPOSITION AND INFORMATION
Substance / Preparation : Substance
Components / Impurities : Contains on other components or impurities
Cas NR : 07782-44-7
Eec NR. (FROM EINECS) : 2319569
CHEMICAL AND PHYSICAL PROPERTIES
Refer to the link...
Gas Properties - Oxygen
HAZARD IDENTIFICATION
NFPA Ratings (scale 0-4): HEALTH=3 FIRE=0 REACTIVITY=0
Emergency Overview : Oxygen gas is a colorless, odorless, oxidizing gas. The chief physical hazard associated with releases of the gas is its oxidizing power which can greatly accelerate the burning rate.
Emergency personnel must practice extreme caution when approaching oxygen releases because of the potential for intense fire.
The primary health hazard at atmospheric pressure is respiratory system irritation after exposure to high oxygen concentrations. Maintain oxygen levels in air above 19.5% and below 23.5%. High concentrations in open air accelerate combustion and increase the risk of fire and explosion of combustible or flammable materials.
Route of Entry : Inhalation, Skin and Eye Contact
Effects of Acute Exposure
Inhalation : May cause breathing difficulty, chest pain, coughing, luing damage, and soreness of throat. Prolonged exposure can cause central nervous system depression. Symptoms can include headache, dizziness, drowsiness, poor coordination, slowed reaction time, slurred speech, giddiness and unconsciousness.
Eye Contact : No adverse effects
Skin Contact: No adverse effects
Ingestion : Not a likely route of exposure
Reproductive Effects : Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental animals.
Effects of Short Term Exposure
Inhalation : Irritation, changes in body temperature, nausea, difficulty breathing, irregular heartbeat, dizziness, disorientation, hallucinations, mood swings, pain in extremities, tremors.
Eye Contact : Frostbite and blurred vision.
Skin Contact : Blister and frostbite.
Ingestion : At times frostbite, otherwise ingestion of harmful amounts is unlikely.
FIRST AID MEASURES
Inhalation: Continuous inhalation of concentrations higher then 75% may cause nausea, dizziness, respiratory difficulty and convulsions. If adverse effects occur, remove to uncontaminated area. Get medical attention.
Skin Contact: If frostbite or freezing occur, immediately flush with plenty of lukewarm water Do not use hot water. If warm water is not available, gently wrap affected parts in blankets. Get immediate medical attention.
Eye Contact: Contact with liquid: Immediately flush eyes with plenty of water for at least 15 minutes. Then get immediate medical attention.
Ingestion: If a large amount is swallowed, get medical attention.
FIRE FIGHTING MEASURES
Specific Hazards : Oxidiser. Supports combustion. Exposure to fire may cause containers to repture /explode. Non flammable.
Hazardous Combustion : None
Suitable Extinguishing Media : Regualr dry chemical, carbon dioxide and all known extinguishers. In case of large fires use regular foam with fine water spray.
Specific Methods : If possible, stop flow of product. Move container away or cool with water from a protected position.
Special Procedures : Self contained breathing apparatus required. Firefighters should wear the unusual protective gear. Personnel should be evacuated.
Auto Ignition Temperature : Not applicable
Flash Point Method : Not applicable
Lower Flammability Limit : Not applicable
Upper Flammability Limit : Not applicable
Sensitivity to Mechanical Impact : Avoid impact against container
Explosive Power : Closed container may rupture or explode due to pressure build up when exposed to extreme heat. Cylinders are equipped with temperature and pressure relief devices but still rupture under fire conditions.
ACCIDENTAL RELEASE MEASURES
Personal Precautions : Evacuate area. Ensure adequate air ventilation. Eliminate ignition sources. Do not touch spilled material. Stop leak if possible without personal risk.
Environmental Precautions : Try to stop release. Prevent from entering sewers, basements and workouts or any place where is accumulation can be dangerous.
Clean Up Methods : Ventilate area.
HANDLING AND STORAGE
Handling Procedures : Do not use oil or grease. Open valve slowly to avoid pressure shock. Protect system damage against physical damage. Segragate from flammable gases and other flammable. Use adequate ventilation. If there is a leak, close the upstream valve, blow down the system and repair the leak.
Storage Requirements : Store in a cool, dry place. Store outside or in a detached building. Store away from ignition sources and direct sunlight. Do not store near elevators, cooridors or loading docks. Do not drag, slide or roll cylinders. Dont allow them to strike each other. After use close main cylinder valve and replace the valve cap.
EXPOSURE CONTROL/ PERSONAL PROTECTION
Exposure Limit : No occupational exposure limit.
Ventilation : Provide local exhaust ventilated system. Ensure compliance with applicable exposure limits.
Eye Protection: For the gas: Eye protection not required, but recommended.
For the liquid: Wear splash resistant safety goggles. Contact lenses should not be worn. Provide an emergency eye wash fountain and quick drench shower in the immediate work area.
Clothing: For the gas: Protective clothing is not required. For the liquid: Wear appropriate protective, cold insulating clothing.
Gloves: Wear insulated gloves.
Protective Material Types: leather
Footwears : Safety boots per local regulations.
Respirator: Under conditions of frequent use or heavy exposure, respiratory protection may be needed. Respiratory protection is ranked in order from minimum to maximum. Consider warning properties before use.
STABILITY AND REACTIVITY
Reactivity: Stable at normal temperatures and pressure.
Conditions to Avoid: Avoid contact with combustible materials. Containers may rupture or explode if exposed to heat.
Incompatibilities: combustible materials, halo carbons, metals, bases, reducing agents, amines, metal salts, oxidizing materials
Hazardous Decomposition : Thermal decomposition products: miscellaneous decomposition products
Polymerization : Will not polymerize.
TOXICOLOGICAL INFORMATION
Possible health hazards as derived from human data, animal studies, or from the results of studies with similar compounds are presented.
Definitions of some terms:
LD50 - Lethal Dose (solids & liquids) which kills 50% of the exposed animals
LC50 - Lethal Concentration (gases) which kills 50% of the exposed animals
ppm concentration expressed in parts of material per million parts of air or water
mg/m3 concentration expressed in weight of substance per volume of air
mg/kg quantity of material, by weight.
ECOLOGICAL INFORMATION
No ecological damages caused by this product
DISPOSAL CONSIDERATIONS
Gas will dissipate in air. Cylinders should be returned in the original shipping container, properly labeled and with valve protection cap in place. Dispose it off to atmosphere in a well-ventilated place. Do not discharge into any place where accumulation could be dangerous. Contact supplier if guidance is required.
TRANSPORT INFORMATION
UN NR : 1072
CLASS / DIV : 2.2
SUBSIDIARY RISK : 5.1
ADR / RID ITEM NR. : 2,1a
ADR / RID HAZARD NR : 25
TERRACED NR : 842
LABELING ADR : Label 2: non-flammable non-toxic gas.
Label 05: fire-intensifying risk.
