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the location of the fire extinguisher and the escape route.
Conduct the regular vacuum leak testing. Leave the room immediately if a significant
leakage accident or equipment failure is found; breathing apparatus must be worn when
re-entering the room. In this case, at least two people must be present.
The gas container must be stored far away from open fire and heat source (> 50°C). The
direct sunlight should be prevented if the gas containers are kept outside.
Gas container must be equipped with a safety helmet during transportation. The gas
container should be tightened to prevent falling. The gas container should be prevented
from leakage during storage and usage. Gas containers should be kept in a well-ventilated
area away from the flammable. It shall not be stored along the escape route or in the
working area and adjacent areas. Do not store the gas containers in the storage room. Only
the original gas container supplied by the manufacturer can be used. The valve on the
container should be checked for air leaks when replacing gas container. The safety valve
shall not be adjusted. The gas should not be released in the enclosed space.
The repair must be operated by professionals. Protective clothing and gloves made
of leather or thick material should be worn. If the gas escapes into the enclosed space, an
independent breathing apparatus should be worn.
Comply with other national regulations (for example, vehicle labels in the transport
process), and conduct regular personnel training, etc.
Comply with the country's regulations on the permit and test cycle of the gas
container.
2.10.1 Nitrogen (N
2
)
Chemical and physical properties and instructions for use.
Only at room temperature can nitrogen react with a few substances, such as lithium
and calcium to generate nitrides. The nitrogen is not prone to reaction with others even
at high temperatures. So, it is used as an inert gas and for technical process, transportation
and storing flammable liquids.
Warning in case of fire or accident
The nitrogen is un-inflammable. The fire hazard may cause the increase of pressure
and explosion of the gas container. In case of fire, the water spray, gas or powder fire
extinguisher should be used. If the gas escapes, do not spill water on the gas container.
Use cold water to fully cool the surrounding containers and gas container. The cold fog
heavier than the air is formed when a large amount of escaping gas mixes with the damp
air. Wear independent breathing apparatus and protective clothing to protect the whole
body. The nitrogen does not cause water pollution.
Health precautions
Utility and toxicity: the nitrogen does not cause the physiological effect, but cause
breathing difficulties and even suffocation when the concentration exceeds 88%. It doesn't
cause restlessness or warning symptoms.
Emergency
If inhaling the nitrogen, the victim must be evacuated from the danger zone and
provided with plenty of fresh air. In enclosed spaces, the first-aid personnel must wear
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