Helium gas
| purity | standard | unit | Application |
oxygen | ≥99.5 | GB-T3863-1995 | bottle/cylinder | Steel cutting, welding, flame processing |
nitrogen | ≥99.5 | GB-T3864-1996 | bottle/cylinder | Replacement gas and protection gas for chemical industry, |
hydrogen | ≥99.9 | GB-T3634-1995 | bottle/cylinder | Chemical industry, glasses, synthetic cut stone. |
CO2 | ≥99.8 | GB-6052-85 | bottle/cylinder | Chemical industry, welding, casting mold |
Helium | ≥99 | GB/4844-95 | bottle/cylinder | Electronic industry, leak hunting, floating air balloon. |
C2H2 | ≥98 | GB6819-1996 | bottle/cylinder | Welding, cutting, heating, organic raw materials |
propene | ≥99.5 | Q/DY-98 | KG | Welding, cutting |
pure hydrogen | ≥99.99 | GB/T7445-1995 | bottle/cylinder | Raw material gas, high-altitude weather |
pure Helium | ≥99.995 | GB/T4844.2-1995 | bottle/cylinder | Electronic industry, chemical industry, analysis |
