Helium gas, which received the “solar” name, is often used to create a festive mood, because it is filled with balloons. With the help of balloons, any outdoor or indoor event will get rid of unnecessary formality. Therefore, everyone present at a corporate event, wedding, birthday, presentation of a new business, advertising campaign will feel at ease. It is very important that this gas is not flammable, so it can be safely used in large crowds.
In the case of heating cylinders with helium, there is an increase in the risk of explosion associated with an increase in pressure, which must be taken into account during public events. Any means can be used to extinguish the fire. Since containers with gas are under high pressure (up to 20 MPa), on impact, they can rupture and cause serious injury to others.
|Metric name||Volume fraction,%||Volume fraction,%|
|Helium (He)||at least||99,995|
|Nitrogen (N2)||no more||0.002|
|Hydrogen (H2)||no more||0.002|
|Volume fraction of CO 2 + CO,%||no more||0.001|
|Argon volume fraction,%||no more||0.0001|
|Volume fraction of neon,%||no more||0.009|
|Oxygen volume fraction,%||no more||0.0005|
|Volume fraction of hydrocarbons,%||no more||0.0005|
Inhalation of helium in an environment with a high oxygen content (more than 19%) will not bring any complications to the body. With a low oxygen concentration, the danger to life increases sharply, up to and including death. A sign of gas poisoning is the high-pitched voice of the victim. Poisoning with the mixture also manifests itself in a sharp deterioration in vision and large burns to the eyes.
Inhalation of liquid gas may cause short-term frostbite of the mucous membranes. In this case, it is necessary to immediately take the person out to fresh air or to a warm ventilated room. In case of respiratory disorders, it is urgent to give artificial respiration and call an ambulance, and in case of eye burns and frostbite, rinse them with plenty of water and take the victim to the hospital. You should also not take off your clothes from a frostbitten person, so as not to damage the skin.
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