The helium gaseous (compressed) brand B
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Technical characteristics
- ManufacturerGunesh
- Country of manufactureAzerbaijan
Description
The helium gaseous (compressed) brand B
Helium gaseous contains brands B impurity of hydrogen, nitrogen, oxygen, argon, neon of 0,01% and 0,005% respectively. These are rather small amounts of impurity which can be removed from helium with own systems of cleaning of various cryogenic devices or are frozen on working surfaces without significant effect on technological processes.
Therefore helium of brand B is used for filling of various cryogenic systems, devices.
Requirements and norms to physical and chemical indicators| Name of an indicator | Norm on TU |
| Volume share of helium, % not less * | 99,990 |
| Volume share of hydrogen, % no more | 0,0025 |
| Volume share of nitrogen, % no more | 0,0020 |
| Volume share of oxygen + argon, % no more | 0,0006 |
| Volume share of CO2 + CO, % no more | 0,0010 |
| Volume share of hydrocarbons, % no more | 0,0005 |
| Volume share of neon, % no more | 0,0090 |
| Volume share of water vapor, % no more | 0,0020 |
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The helium gaseous (compressed) brand B