Product Description The RKI Calibration 4-Gas Mixture in an aluminum 34 liter cylinder. The mixture is 25 ppm H2S/50 ppm CO/50 percent LEL CH4/12 percent 02 in N2. The Calibration 4-Gas mixture is for use with the RKI GX-3R & GX-3R Pro Series Gas Monitors & SDM-3R Calibration Stations, the RKI GX-2009 and the RKI HX-2012 Gas Monitors and SDM-2012 Calibration Station for GX-2012. Note: calibration gas is not returnable. Please check your selection carefully before ordering.
RKI Calibration 58 Liter Gas Cylinder, Quad Mix, CH4 50%, H2S 25 ppm, CO 50 ppm, O2 12% Vol, N2 Balance, SKU#81-0154RK-02, Hazmat MFG# RKI-81-0154RK-02 $210.00 Add To Cart
RKI Calibration 58 Liter Gas Cylinder, Isobutylene 100 ppm, CH4 50%, H2S 25 ppm, CO 50 ppm, O2 12% Vol, N2 Balance, SKU#81-0143RK-02, Hazmat MFG# RKI-81-0143RK-02 $390.00 $340.00 Add To Cart
Industrial Scientific 18105262, Calibration Gas, 58 Liter, 25 ppm H2S, 50 ppm Co, 50% LEL Methane (CH4), 20.9% O2, Hazmat MFG# IS-18105262 $322.00 $305.90 Add To Cart
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 $290.00 $259.95 Add To Cart