OXYGEN, O2
MOISTURE <3 ppm
THC <1 ppm
ARGON <40 ppm
NITROGEN <10 ppm
Molecular Weight:  32.00
Valve:  CGA 540

ULTRA ZERO AIR
OXYGEN  20-22%
MOISTURE  <3.0 PPM
THC  <0.1 PPM
CARBON MONOXIDE  <1.0 PPM
CARBON DIOXIDE  <1.0 PPM
Molecular Weight:  28.96Valve:  CGA 590

ARGON, Ar
MOISTURE  <3.0 PPM
THC  <0.5 PPM
OXYGEN <2.0 PPM
NITROGEN  <4.0 PPM
ASSAY:  99.999%
Molecular Weight:  39.948 
Valve:  CGA 580

NITROGEN, N2
MOISTURE  <3.0 PPM
THC  <0.5 PPM
OXYGEN <2.0 PPM
ASSAY:  99.999%
Molecular Weight:  28.01
Valve:  CGA 580

HELIUM, He
MOISTURE  <2.0 PPM
THC  <0.5 PPM
OXYGEN <1.0 PPM
CARBON DIOXIDE  <1.0 PPM
CARBON MONOXIDE <1.0 PPM
NITROGEN  <5.0 PPM
HYDROGEN <1.0 PPM
ASSAY:  99.999%
Molecular Weight:  4.0026
Valve:  CGA 580

CARBON DIOXIDE, CO2
MOISTURE  <3.0 PPM
THC  <1.0 PPM
OXYGEN  <5.0 PPM
Molecular Weight:  44.01 
Valve:  CGA 320

HYDROGEN, H2
MOISTURE  <3.0 PPM
THC  <0.5 PPM
OXYGEN  <1.0 PPM
ASSAY:  99.999%
Molecular Weight:    2.0159
Valve:  CGA 350

METHANE, CH4
MOISTURE  <0.5 PPM
OXYGEN  <1 PPM
NITROGEN  <5.0 PPM
ETHANE  <10.0 PPM
CARBON MONOXIDE  <1.0 PPM
CARBON DIOXIDE  <1.0 PPM
C3+  <1.0 PPM
SULFUR  <1.0 PPM
ASSAY:  99.999%
Molecular Weight:  16.043
Valve:  CGA 350