Argon high purity for use as a protective atmosphere in welding, cutting and melting active and rare metals and their alloys, aluminum, aluminum and magnesium alloys, stainless chromium-nickel alloyed superalloys and steels of various grades, and also in the refining of metals metallurgy.
|
№
|
The name of indicators |
brand 4.8 |
|
I |
II |
III |
|
1 |
Volume fraction of an argon, %, not less |
99,998 |
|
2 |
The volume fraction of oxygen, %, no more |
2,5∙10-4 |
|
3 |
The volume fraction of nitrogen, %, no more |
1∙10-3 |
|
4 |
The volume fraction of the hydrogen, % , no more |
2∙10-4 |
|
5 |
The volume fraction of the amount of carbon-containing compounds based on the CO2 , %, no more |
1∙10-4 |
|
6 |
The volume fraction of water vapor in the argon gas, %, no more |
3∙10-4 |
