K
kaunblauk
New Member
- Jul 9, 2022
- 3
What has te minimum nitrogen purity have to be? I can choose for instance from 4.0 which is 99.99% purity or 5.0 which is more pure and equals 99.999% purity.
Or will 2.0 also do (99% purity)....thanks!
Or will 2.0 also do (99% purity)....thanks!