- Sep 04, 2017 -
Liquid Nitrogen Overview
(1)Summary Of Hazards
Health hazards: This product is not combustible, with a suffocation, skin contact with liquid nitrogen can cause frostbite. Such as the steam at room temperature generated by excessive nitrogen, can cause air oxygen partial pressure drop, causing hypoxia asphyxia.
(2) First Aid Measures
Skin contact: if frostbite, medical treatment. Inhalation: quickly from the scene caused by fresh air, keep breathing smooth. Such as breathing difficulties, to oxygen. Such as breathing to stop, immediately artificial respiration, medical treatment.
(3) Fire Protection Measures
DANGER: In case of heat, the internal pressure of the container increases and there is a risk of cracking and explosion.
Fire fighting method: This product is not combustible, with mist water to keep the fire in the container cooling. Can be sprayed with spray water to accelerate the evaporation of liquid nitrogen, water guns can not be caused by liquid nitrogen.
(4)Leaked Emergency Treatment
Emergency Treatment: the rapid withdrawal of personnel from the polluted area to the upper air, and isolation, restrictions on access. Emergency personnel wear self-contained positive pressure respirator, wear cold clothing. Do not touch the spill directly. Cut off the source as much as possible. To prevent the gas gathered in the low concave, the case of heat source explosion. Use a ventilator to send the leaking gas to the open air. Leakage containers should be properly handled, repaired, tested and then used.
(5) Handling And Storage
Handling Precautions: Closed operation, providing good natural ventilation conditions. The operator must be trained to strictly observe the operating procedures. It is recommended that the operator wear cold gloves. Prevent gas from leaking into the workplace air. When handling light to light, to prevent damage to the cylinder and accessories. Equipped with emergency equipment.
Storage Precautions: Store in a cool, airy place, place should not exceed 50 ℃.
(6) Individual Protection
Respiratory protection: generally do not require special protection. However, when the workplace air oxygen concentration below 19%, you must wear air breathing apparatus, oxygen breathing apparatus, long tube mask. Eye protection: Wear a protective cover. Hand protection: Wear cold gloves. Other protection: avoid high concentrations of inhalation to prevent frostbite.
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