1、When engaged in any work with deep cold liquid, you must wear protective equipment to prevent frostbite.
2、In the operation of liquid oxygen, the opening and closing of the valve should be done slowly, sudden opening and closing, the oxygen flow will make any pollution within this system catch fire.
3、All liquid vapors except liquid oxygen can asphyxiate people.
4、When using liquid it is recommended that the pressure in the cylinder should be reduced as much as possible.
5、The operation must ensure that the cylinder is upright, moreover, should avoid tipping over, and never roll the cylinder horizontally.
6、The storage, vaporization, filling and use of liquid oxygen are strictly prohibited within 5m of the surrounding area, and all sources of fire should be eliminated, and there should be obvious signs of no fire.
7, liquid oxygen storage, vaporization, filling, use of the place around at least 5m is not allowed to have to low places (such as basements, pits, wells, ditches) of the opening; ditch entrance must have a liquid weir.
8、Operators in filling or handling liquid oxygen, shall not wear grease stained work clothes and personal protective equipment, where the grease stained clothes and protective equipment must be replaced.