intense energy source is necessary to ignite ammonia gas. Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, appropriate foam, water spray or fog. Specific Hazards Arising from the Chemical: Heat from fire can cause a rapid build-up of. pressure inside cylinders. Explosive rupture and a sudden release of large amounts of gas may ...
CCOHS: Ammonia - Canadian Centre for Occupational Health and …
2024年5月10日 · Emergency Overview: Colourless gas. Ammonia-like odour. COMPRESSED GAS. Contains gas under pressure. May explode if heated. FLAMMABLE GAS. High concentrations can be a fire and explosion hazard, especially in confined spaces. Can decompose at high temperatures forming very flammable hydrogen gas. VERY TOXIC. Fatal if inhaled.
CCOHS: Features: Ammonia
This perception probably arises from North American transport regulations which classify anhydrous ammonia as "a non-flammable" gas. In Europe, however, it is classified as flammable. Upon examining the literature, CCOHS scientific staff learned that there is a history of violent ammonia-air explosions, particularly with equipment in ...
Exposure Limits to Chemical and Biological Agents - Canadian …
Oil and Gas Occupational Safety and Health Regulations (SOR/87-612) Section 11.23. Alberta. As made under the Occupational Health and Safety Act (S.A. 2020, c. O-2.2), Occupational Health and Safety Code (Alta. Reg. 191/2021) Part 4, Chemical Hazards, Biological Hazards and Harmful Substances
Welding - Storage and Handling of Compressed Gas Cylinders
2024年5月10日 · When security is a concern for mobile gas welding systems, a screened cage can be used to contain the cylinders; however, at least two sides of the cage must have an 80% or greater area, which allows for airflow. Monitor for flammable and oxygen gas levels in …
CCOHS: Occupational Hygiene - Occupational Exposure Limits
2024年5月10日 · What are the occupational exposure limits? Back to top. In general, the occupational exposure limit (OEL) indicates the level of admissible exposure, for a length of time (usually 8 hours), to a chemical or physical hazard that is not likely to affect the health of a worker.
CCOHS: Health and Safety Report - Past Issues
On farms, ammonia gas is generated by compost piles on mushroom farms. Manure pits and any indoor or confined spaces where farm animals are kept can contain ammonia gas. Ice rinks and ice manufacturing plants use liquid ammonia in their refrigeration systems. If this liquefied ammonia leaks, it becomes a gas.
CCOHS: Sulfur Dioxide - Canadian Centre for Occupational Health …
2024年5月10日 · The gas irritates or burns the skin. Permanent scarring can result. Direct contact with the liquefied gas can chill or freeze the skin (frostbite). Symptoms of mild frostbite include numbness, prickling and itching. Symptoms of more severe frostbite include a burning sensation and stiffness. The skin may become waxy white or yellow.
CCOHS: Health and Safety Report - Past Issues
2024年11月20日 · Ammonia is a toxic chemical with many applications. It is found in fertilizers, cleaning products, and as a refrigerant in arenas, ice factories and refrigeration facilities. A colourless gas at room temperature and normal pressure, ammonia can be fatal to workers when exposed to a high concentration.
Converting Occupational Exposure Limits from mg/m³ to ppm
Occupational exposure limits (OELs, threshold limit values (TLVs), permissible exposure levels (PELs), etc.) can be expressed in parts per million (ppm) only if the substance exists as a gas or vapour at normal room temperature and pressure. This state is the reason exposure limits are usually expressed in mg/m 3. Some OELs may be expressed in ...