Nitrogen purity
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I would like to ask everyone, what is the typical purity of nitrogen supplied externally?
It’s a great question – why hasn’t anyone answered it? I also need data in this area
Refer to the relevant requirements in \"GB T3864 Industrial Nitrogen\"
Generally, the liquid nitrogen produced by our company has a concentration of less than 3 ppm; the purity should decrease a bit after filling
In industry, it is commonly expressed as several nines; for example, 99.9% (v) is referred to as three nines； 99.99% (v) is called four nines. The common ones are three nines and five nines.
The purity of the nitrogen supplied is determined based on the user’s requirements and applications, ranging from 99.9% to 99.999%. For reference!
Industrial nitrogen is generally 99.95%, while high-purity nitrogen is 99.999%
For large-scale air separation, 99.99% can be achieved