T
TF64
Member
- May 27, 2023
- 16
What is the required Nitrogen purity for CTB using either SCUBA or SCBA? I have food grade Nitrogen which I believe is typically between 99.0% and 99.5% purity with oxygen concentration less than 1% and carbon monoxide and carbon dioxide concentrations under 10ppm and 300ppm respectively. Is this sufficient? If not, there are numerous grades of "high purity" Nitrogen, so I am a bit confused as to what specific grade of Nitrogen I would ask for when I go to buy it.