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The buddy may get into difficulty due to inattention or incompetence, and require a rescue that is hazardous to the rescuer. The buddy may get into difficulty and mishandle the situation or panic, creating an incident that is hazardous to both divers. Diving with a buddy is known to be competent and who can be trusted to behave responsibly. [62]
Hydrogen sulfide is a chemical compound with the formula H 2 S. It is a colorless chalcogen-hydride gas , and is toxic, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs . [ 11 ]
The symptoms of poisoning vary depending on substance, the quantity a dog has consumed, the breed and size of the mammal.A common list of symptoms are digestion problems, such as vomiting, diarrhea, or blood in stool; bruising and bleeding gums, nose, or inside the ear canal; behavioral changes, such as lethargy, hyperactivity, and seizures; unusual items found in the dog's stool.
P333+P313: If skin irritation or a rash occurs: Get medical advice/attention. P334: Immerse in cool water [or wrap in wet bandages]. P335: Brush off loose particles from skin. P335+P334: Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. P336: Thaw frosted parts with lukewarm water. Do not rub affected areas.
a signal word – either Danger or Warning – where necessary; precautionary statements, indicating how the product should be handled to minimize risks to the user (as well as to other people and the general environment) the identity of the supplier (who might be a manufacturer or importer).
In addition to being toxic, hydrogen sulfide in the presence of water also damages piping and other equipment handling sour gas by sulfide stress cracking. Natural gas typically contains several ppm of volatile sulfur compounds, but gas from one well in Canada is known to contain 90% hydrogen sulfide and others may have H 2 S contents in the ...
The main danger with cryogenic hydrogen is what is known as BLEVE (boiling liquid expanding vapor explosion). Because hydrogen is gaseous in atmospheric conditions, the rapid phase change together with the detonation energy combine to create a more hazardous situation. [ 43 ]
Corrosion may occur where stale sewage generates hydrogen sulfide gas into an atmosphere containing oxygen gas and high relative humidity. There must be an underlying anaerobic aquatic habitat containing sulfates and an overlying aerobic aquatic habitat separated by a gas phase containing both oxygen and hydrogen sulfide at concentrations in excess of 2 ppm.