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Standard:GB/T 3864-1996
Uses:It can be used as protective gas.
Technical requirements:
| Item |
Index |
| Top-grade |
First grade |
Qualified product |
| Purity, 10-2 (V/V) ≥ |
99.5 |
99.5 |
98.5 |
| Oxygen, 10-2 (V/V) ≤ |
0.5 |
0.5 |
1.5 |
| Moisture |
Free water, mL/bottle ≤ |
-- |
no |
100 |
| Dew point , °C ≤ |
-43 |
-- |
| Remark: the moisture is not prescriptive for liquid product. |
Molecular formula:N2
Relative molecular weight:28.0134
Properties:it is colorless , tasteless , odorless , non-flammable gas with suffocation.
Packing & Storage: steel gas cylinder ; Avoid insolation and direct sunlight. Do not mix with inflammable and flammable matter.
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