Technical liquid oxygen is used after its gasification for flame treatment of metals and other industrial purposes.
Medical Technology Liquid oxygen is used after its gasification for breathing and therapeutic purposes.
|
№№ p/p |
The name of indicators |
|
|
|
first grade |
medical |
||
|
1 |
Volume fraction of oxygen,%, not less |
99,7 |
99,5 |
|
2 |
The amount of carbon dioxide in 1 dm 3 of liquid oxygen, see 3 , with the 20 a C and 101.3 kPa (760 mm Hg. Art. ), no more |
2,0 |
3,0 |
|
3 |
The content of acetylene in liquid oxygen |
absence |
absence |
|
4 |
The oil content in liquid oxygen |
absence |
absence |
|
5 |
The carbon monoxide content |
not rated |
withstand paragraph 3.6 |
|
6 |
The content of gaseous acids or bases |
not rated |
withstand p.3.7 |
|
7 |
The ozone and other oxidizing gases |
not rated |
withstand p.3.8 |
|
8 |
The moisture content and solids |
withstand p.3.9 |
|
|
9 |
smell |
not rated |
absence |
note: п.3.6-3.9 – The section "Methods of analysis" in the GOST 6331-78
