Specification
Purity,% 99.9 99.99 99.995 99.999 99.9999
Oxygen ≤50 ppmv ≤10 ppmv ≤5 ppmv ≤1 ppmv ≤0.25 ppmv
Nitrogen ≤250 ppmv ≤35 ppmv ≤15 ppmv ≤4 ppmv ≤0.25 ppmv
Carbon dioxide
≤2 ppmv ≤0.02 ppmv
Carbon monoxide
≤1 ppmv ≤0.02 ppmv
Moisture ≤50 ppmv ≤10 ppmv ≤5 ppmv ≤1.0 ppmv ≤0.5 ppmv
Ethane ≤600 ppmv ≤25 ppmv ≤15 ppmv ≤3 ppmv ≤0.02 ppmv
Ethylene
≤1 ppmv ≤0.02 ppmv
Hydrogen ≤50 ppmv ≤10 ppmv ≤5 ppmv ≤1 ppmv ≤0.02 ppmv
Propane
≤1 ppmv ≤0.02 ppmv
Acrylic
≤1 ppmv ≤0.02 ppmv
transportation
DOT shipping name Methane, compressed
DOT classification 2.1
DOT label combustible gas
UN NO. UN 1971
CAS No. 74-82-8
CGA/DISS /BS341/DIN477 350/W22-14L/NO.4/NO.1
Transport state Compressible gas
Technical Information
Cylinder condition @ 21.1°C gas
Combustion limit in air 5–15.0%
Natural temperature (°C) 580
Molecular weight (g/mol) 16.043
Specific gravity (air =1) 0.555
Critical temperature (°C) -82.57
Application
It is used to prepare standard gas for calibration of natural gas, petrochemical and environmental monitoring.