Industrial Scientific 18109192 Calibration Gas, 34 Liter, 100 ppm CO, 25 ppm H2S, 18% O2, 50% LEL CH4 Methane (2.5% vol), Hazmat MFG# IS-18109192 $335.25 $309.10 Choose Options
Industrial Scientific Calibration & Bump Test Gas, With iCard, 58 Liter, 2 cu. ft., 25 ppm H2S, 100 ppm CO, 2.5% Methane, 18% O2, Mfg# 18109156, Hazmat MFG# IS-18109156 $408.25 $389.40 Choose Options
Industrial Scientific 18101378 Calibration Gas with iCard, CH4 2.5% vol (50% LEL Methane), 103 Liter, Hazmat MFG# IS-18101378 $240.25 $204.60 Choose Options
Industrial Scientific Calibration Gas with iCard, 100 ppm CO, 18% O2, CH4 2.5% (50% Methane), 103 Liter, Mfg# 18109165, Hazmat MFG# IS-18109165 $288.25 $257.40 Choose Options
Industrial Scientific 18105262, Calibration Gas, 58 Liter, 25 ppm H2S, 50 ppm Co, 50% LEL Methane (CH4), 20.9% O2, Hazmat MFG# IS-18105262 $354.20 Choose Options
Industrial Scientific 18109160 Calibration Gas, 650 Liter, 100 ppm CO, 25 ppm H2S, 18% O2, LEL 50% CH4 (2.5% Vol), Hazmat MFG# IS-18109160 $2,170.30 Choose Options
Industrial Scientific 18109462 Calibration and Bump Gas, 58 Liter, 25 ppm H2S, 18% O2, 2.5% Vol CH4, Hazmat MFG# IS-18109462 $338.80 Choose Options
Industrial Scientific 18109231 Calibration Gas, 650 Liter, 100 ppm CO, 25 ppm H2S, 18% O2, 2.5% CH4, 10 ppm SO2, Hazmat MFG# IS-18109231 $2,545.40 Choose Options