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Nitrogen liquid for bio-repositories (N2)
Nitrogen liquid for bio-repositories (N2)
ТУ Уз 6.3-45-90 (CN of FEA code 280 430 0000)
Liquid nitrogen is resulted from atmosphere air by deep cooling method. Liquid nitrogen is used for agricultural enterprises as a cooling agent.
|
Specifications |
Grade «А» |
Grade «B» |
|
Volume fraction of nitrogen, %, no less than |
99,99 | |
|
Volume fraction of oxygen, %, no more than |
0,01 | |
|
Oil content, mechanical impurities and moisture |
Non-availability | |
|
Volume fraction of hydrogen, %, no more than |
unnormalized | |
|
Volume fraction of carbon-bearing compounds sum on conversion to СО2, %, no more than |
unnormalized | |
Safety requirements: it is necessary to use isolating oxygen or airline respirators when operated at nitrogen atmosphere. Nitrogen is non-toxic, inexplosive, accumulation of gaseous nitrogen causes the effect of oxygen insufficiency and asphyxia. The unloading of liquid nitrogen is carried out in special designated location lacking of asphalt revetment, wood and other organic materials.
Packaging: in barrels and truck tankers.
Transportation: in railroad tanks and truck tanker of special purpose.