When inspecting the appearance of composite gas cylinders, the following details should be noted:
1.Check the stamping markings. Each composite cylinder will have a clear stamped mark on the surface, including important information such as manufacturer, date of manufacture, pressure, etc. If you find a cylinder with illegible handwriting or without these key information, it is likely to be a non-conforming product. Also check for signs of bumps or other serious injuries that may indicate a problem during subsequent use.
2.Observe the lacquer color and gloss. The part of the mask of the qualified oxygen respirator should fit the shell, the color and luster should be consistent and there should be no oxidation. If there is any inconsistency, it should be dealt with in a timely manner. In addition, special attention should be paid to whether the condensate from the exhaled breath corrodes the appearance of the protector. It is also necessary to check whether the color of the polyester antioxidant on the valve screw has faded and whether the appearance of the oxygen storage bottle has rust.
3. Check and re-inspect the inspection report (this is to prevent some units from cheating).
4. After checking the information of the gas cylinder, you can weigh it.
5.Whether there is a collision or deformation at the corner;The individual fixing bolts are not loose.
6.Other obvious problems such as: air leakage, red flushing, etc.7 Some internal defects that can be seen by the naked eye should also be taken seriously.