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Special Gases
  
O2 Zero Air Ar Hi H2 C2H2 N2O CO2
Products
Guranteed Specification
Maximum Impuritiy Levels (PPM By Volume)
XL- Grade O2 H2O THC CO2 CO N2 Ar H2
Oxygen - 2.5 25 Nil 0.2 100 500 Nil
Zero Air Nil 2 1 1 Nil Nil Nil Nil
Nitrogen 1.5 1 Nil Nil Nil - 5 Nil
Argon 1.5 1 Nil Nil Nil 2 - Nil
Helium 1.5 1.5 0.2 0.2 0.2 3 Nil 1
Hydrogen 2 2 0.5 0.2 0.5 50 Nil -
Dissolved Acetylene                
Nitrous Oxide                
Carbon Dioxide                

 
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