Helium(He), Argon(Ar), Hydrogen(H2), Nitrogen(N2), Oxygen(O2), Carbon Dioxide(CO2), Carbon Monoxide(CO), Sulphur Dioxide(SO2), Nitrogen Monoxide(NO), Nitrogen Dioxide(NO2), Nitros Oxide(N2O), Neon(Ne), Krypton(Kr), Xenon(Xe), Hydrogen Sulfide(H2S), Liquid Chlorine(Cl2), Ammonia(NH3), Sulphur Hexafluoride(SF6), Synthetic Air, Zero Point Air  

Helium (He)
99.995%  TCH4≤1   CO2≤1   Ne≤10 H2≤3   CO≤1   H2O≤10
99.999%  O2≤1    TCH4≤1   CO2≤0.5 Ne≤4  H2≤1   CO≤0.5 H2O≤1
99.9995%O2≤0.5  TCH4≤0.1 CO2≤0.2 Ne≤1  H2≤0.1 CO≤0.1 H2O≤1

Argon (Ar)
99.99%     O2≤10 THC≤10  N2≤50 H2≤5  H2O≤15
99.999%  O2≤2  THC≤2   N2≤5  H2≤1  H2O≤4
99.9995% O2≤1  THC≤0.5 N2≤2  H2≤0.5 H2O≤1

Hydrogen (H2)
99.99% O2≤5 CO2≤5 N2≤60 TCH4≤10 CO≤5  H2O≤5
99.999% O2≤1 CO2≤1 N2≤5  TCH4≤1   CO≤3 H2O≤1

Nitrogen (N2)
99.99%  O2≤50 CO2≤10 N2≤10 CO≤5 H2O≤15 CH4≤30
99.999% O2≤1  H2O≤2  H2≤1  THC≤3

Oxygen (O2)
99.995% Ar≤20 CO2≤1 N2≤20 THC≤2

Carbon Dioxide (CO2)
99.995% O2≤10 H2O≤5 N2≤20 CO≤1 THC≤10
99.999% O2≤1 H2O≤2  N2≤5  CO≤1 THC≤1

Carbon Monoxide (CO)
99.95% N2<350, O2<50, H2O<5

Sulfur Dioxide (SO2)
99.97% O2+N2<100, H2O<10, <200

Nitrogen Monoxide (NO)
99.5% N2O<4000\NO2<2000\N2<300\CO2<500

Nitrogen Dioxide (NO2)
99.9%

Nitrous Oxide (N2O)
99.99%

Neon (N2)
99.995% H2≤2 N2≤5 He≤40 THC≤1 O2+Ar≤2 H2O≤2
99.999% O2≤1 N2≤5 H2O≤2 He≤10

Krypton (Kr)
99.99%   N2≤20 H2≤2   O2+Ar≤5 Xe≤50 H2O≤3   THC≤3
99.999% N2≤3  H2≤0.5 O2+Ar≤2 Xe≤4  H2O≤2.6 THC≤1

Xenon (Xe)
99.99%  N2≤20 Ar≤10 N2O≤1  O2≤2     H2≤2    Kr≤50  H2O≤3 THC≤3
99.999%N2≤3  THC≤1 N2O≤0.5 O2+Ar≤2 H2O≤2.6 H2≤0.5 Kr≤4

Sulfureted Hydrogen (H2S)
99.9% H2<200ppm\O2+N2<100ppm\H2O<3ppm

Hydrogen Chloride (HCl) 99.9%
Hydrogen Chloride (HCl) 99.99%
Hydrogen Chloride (HCl) 99.999% N2≤4, CO2≤5, H2O≤1, O2+Ar≤1, TCH≤1

Liquid Chlorine (Cl2)
99.9% CO2<400\CO10\H2<200, N2<100\O2<20\H2O<100
99.999%

Ammonia (NH3)
99%
99.999% O2<1.0ppm\N2<2.0ppm\CO1.0ppmH2O<2.0ppm THC(C1~C3)<1.0ppm

Sulfur hexafluoride (SF6)
99.95% O2≤10 H2O≤5 N240 HF≤0.1 CF4≤25

Synthetic Air (O2: 19.5-22.5)H2O≤5 CO/CO2≤0.5 THC≤5
Zero Air (O2: 19.5-22.5) H2O≤5 CO/CO2≤0.5 THC≤0.1