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Gaseous nitrogen (N2)
GASEOUS NITROGEN (N2)
GOST 9293-74 (CN of FEA code 280 430 0000)
Gaseous nitrogen is meant for creation of inert atmosphere at manufacturing of easy oxidize products under high-temperature process of metalworking operation, noninteracting with nitrogen for preservation of self-contained metallic tanks and pipelines. Gaseous nitrogen is an inert gas without a color and smell.
|
Specifications |
Special purity |
Increased purity |
Commercial-Grade | |||
|
1-grade |
2-grade |
1-grade |
2-grade |
1-grade |
2-grade | |
|
Volume fraction of nitrogen, % no less than |
99,999 |
99,996 |
99,99 |
99,95 |
99,6 |
99,0 |
|
Volume fraction of oxygen, % no more than |
0,0005 |
0,001 |
0,001 |
0,05 |
0,4 |
1,0 |
|
Volume fraction of water steam in gaseous nitrogen %, no more than |
0,0007 |
0,0007 |
0,0015 |
0,004 |
0,009 |
bear the test by item 3.6 |
|
Oil content in gaseous nitrogen |
undefined |
bear the test by item 3.7. | ||||
|
Volume fraction of hydrogen, % no more than |
0,0002 |
0,001 |
unnormalized | |||
|
Volume fraction of carbon-containing compounds amount on conversion to СН4, %, no more than |
0,0003 |
0,001 |
unnormalized | |||
Safety Requirements: the nitrogen is non-toxic, inexplosive. Accumulation of gaseous nitrogen causes an effect of oxygen insufficiency and asphyxia.
Packaging: in barrels and truck tankers.
Transportation: gaseous nitrogen is transported in special barrels.