A sign of a, look for the qualified cylinders
(1) the symbol and serial number is painted with filling unit;
2 2 is with filling tag;
Three (3) is with safety warning labels;
(4) seal, color marking should conform to the provisions;
5] has to JianYanQi have inspection tag (except for new bottles);
[6] no deformation, damage and leakage.
Second, achieve "six don't use"
(1) do not use without warning labels and filling certificate
2 do not use without filling unit symbol and number of cylinders;
(3) do not use the cylinders are not checked and scrap;
(4) do not use the color tag is not in conformity with the provisions of the cylinder;
5] don't use the attachment is not complete, the damage of the cylinder;
[6] don't use serious rust, deformation of the cylinder.
Three, remember cylinder test cycle and scrapped rules:
(1) under 15 kg liquefied petroleum gas cylinder test at least once every four years, 15 years of scrapped;
2 dissolved acetylene cylinder checked at least once every three years;
(3) 50 kg liquefied petroleum gas cylinder and holding general gas welding gas cylinder test at least once every three years, 15 years of scrapped;
(4) seamless steel gas cylinders (oxygen, nitrogen, hydrogen, etc.) checked at least once every three years, 30 years of scrapped;
5] holding corrosive gas welding gas cylinder checked at least once every two years, 12 years of scrapped.