Calibration Gases

Apollo Safety offers a wide range of NIST traceable calibration gases for all calibration needs.

Ammonia (NH3) Available in 10, 25, 100, 200 PPM

Carbon Monoxide (CO) Available in 25, 50, 100, 300, 500 PPM

Chlorine (CL2) Available in 2, 5, 10 PPM

Hydrogen (H2) Availble in 10% LEL, 50 % LEL

Hydrogen Sulfide (H2S)

Hydrogen Cyanide (HCN)

Methane (CH4) Available in 5% LEL, 10% LEL, 50% LEL and 99.9%/Vol

Nitrogen (N2) Available in in 99.9% / Vol

Sulfur Dioxide (SO2) Available in 5 , 10 PPM

Silane (SiH4) Available in 5, 10 PPM

Hexane15% / LEL

Many other concentrations and custom calibration mixtures also available. 

Call toll-free 800-813-5408 to speak with one of our gas detection experts.

Prices are subject to change without notice due to ongoing tariff adjustments and market conditions. For the most accurate and up-to-date pricing, please contact us directly.

Cal kit, GX-3R Pro, 58AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 103L steel cyl 2.5% vol CO2 in N2, regulator 0.25 LPM, case & tubing SKU: 81-PAB Price: $570.00 In Stock	Cal kit, GX-3R Pro, 58AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 103L steel cyl 5,000 ppm CO2 in N2, regulator 0.25 LPM, case & tubing SKU: 81-PAA Price: $570.00 In Stock
Cal kit, GX-3R Pro, 58AL cyl SO2 5 ppm / H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-PAC Price: $505.00 In Stock	Cal Kit, GX-6000, 34AL cyl 10 ppm isobutylene in air, 34AL cyl H2S/CO/CH4/O2, dem flow reg, case & tubing SKU: 81-6AAX-DLV Price: $700.00 In Stock
Cal Kit, GX-6000, 34AL cyl 10 ppm isobutylene in air, dem flow reg, case & tubing SKU: 81-6XAX-DLV Price: $535.00 In Stock	Cal Kit, GX-6000, 34AL cyl 100 ppm isobutylene in air, dem flow reg, case & tubing SKU: 81-6XBX-DLV Price: $535.00 In Stock
Cal Kit, GX-6000, 34AL cyl 100 ppm Isobutylene/H2S/CO/CH4 LEL/O2, 34AL cyl 5 ppm SO2 in N2, dem flow reg, case, tubing SKU: 81-6ABI-DLV Price: $765.00 In Stock	Cal Kit, GX-6000, 34AL cyl 100 ppm Isobutylene/H2S/CO/CH4/O2, 34AL 5 ppm benzene/air, dem flow reg, case, tubing SKU: 81-6AZB-DLV Price: $755.00 In Stock
Cal Kit, GX-6000, 34AL cyl 100 ppm Isobutylene/H2S/CO/CH4/O2, 34AL cyl 10 ppm HCN in N2, dem flow reg, case, tubing SKU: 81-6ABL-DLV Price: $910.00 In Stock	Cal Kit, GX-6000, 34AL cyl 100 ppm Isobutylene/H2S/CO/CH4/O2, 34AL cyl 10 ppm NO2 in N2, dem flow reg, case, tubing SKU: 81-6ABK-DLV Price: $890.00 In Stock
Cal Kit, GX-6000, 34AL cyl 100 ppm Isobutylene/H2S/CO/CH4/O2, dem flow reg, case, tubing SKU: 81-6ABX-DLV Price: $620.00 In Stock	Cal Kit, GX-6000, 34AL cyl 5 ppm benzene in air, dem flow reg, case & tubing SKU: 81-6XZX-DLV Price: $515.00 In Stock
Cal kit, GX-6000, 34AL cyl CH4/O2/H2S/CO, dem flow reg, case and tubing SKU: 81-6AXX-DLV Price: $545.00 In Stock	Cal kit, GX-6000, 34AL cyl SO2 5 ppm/H2S 25 ppm/CO 50 ppm/O2 12% in N2, 34AL cyl NH3 25 ppm in N2, demand flow regulator, case & tubing SKU: 81-6AIM-DLV Price: $870.00 In Stock
Cal Kit, GX-6000, 58AL cyl 100 ppm Isobutylene/H2S/CO/CH4/O2, dem flow reg, case, tubing SKU: 81-6ABX Price: $725.00 In Stock	Cal kit, GX-6000, 58AL cyl 5 ppm Cl2 in N2, 58AL cyl CH4/O2/H2S/CO, dem flow reg, case and tubing SKU: 81-6APX Price: $1,280.00 In Stock
Cal kit, GX-6000, 58AL cyl CH4/O2/H2S/CO, dem flow reg, case and tubing SKU: 81-6AXX Price: $565.00 In Stock	Cal Kit, GX-6000, 58AL steel cyl 5 ppm benzene in air, dem flow reg, case & tubing SKU: 81-6XZX Price: $525.00 In Stock
Cal kit, GX-Force, 103L cyl CO 50 ppm / CH4 50% LEL / O2 12% in N2, demand flow regulator, case & tubing SKU: 81-GXFD Price: $525.00 In Stock	Cal kit, GX-Force, 58AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, demand flow regulator, case & tubing SKU: 81-GXFA Price: $565.00 In Stock
Cal kit, HS-01, 34AL cyl 25 ppm H2S/N2, reg with gauge & knob, cal cup, case & tubing SKU: 81-HS01-LV Price: $380.00 In Stock	Cal kit, HS-03, 34AL cyl 25 ppm H2S/N2, regulator, cal cup, case & tubing SKU: 81-HS03-LV Price: $390.00 In Stock
Cal kit, HS-03, 58AL cyl 25 ppm H2S/N2, regulator, cal cup, case & tubing SKU: 81-HS03 Price: $400.00 In Stock	Cal kit, HS-03, no gas, fits two 34AL cylinders, regulator, cal cup, case & tubing SKU: 81-HS03NG-LV Price: $255.00 In Stock
Cal kit, HS-04, 34AL cyl H2S 25 ppm in N2, regulator, cal cup, case & tubing SKU: 81-HS04-LV Price: $390.00 In Stock	Cal kit, NC-1000, 34AL isobutane 500 ppm in air, dem flow reg, case & tubing SKU: 81-NC1000-DLV Price: $435.00 In Stock
Cal kit, NP-204, 34L cyl 50% LEL CH4/Air, 34L cyl 50% vol CH4/N2, reg with gauge & knob, screwdriver, case & tubing SKU: 81-NP204 Price: $350.00 In Stock	Cal kit, OX-01, 34L cyl 100% N2, reg with gauge and knob, cal cup, case & tubing SKU: 81-OX01-LV Price: $300.00 In Stock
Cal kit, OX-01, with no gas, reg with gauge & knob, cal cup, case & tubing SKU: 81-OX07NG-LV Price: $320.00 In Stock	Cal kit, OX-03, 103L steel cyl 100% N2, regulator, cal cup, case & tubing SKU: 81-OX03 Price: $400.00 In Stock
Cal kit, OX-03, 34L cyl 100% N2, regulator, cal cup, case & tubing SKU: 81-OX03-LV Price: $305.00 In Stock	Cal kit, OX-04, 34AL cyl N2 100%, regulator, cal cup, case & tubing SKU: 81-OX04-LV Price: $310.00 In Stock
Cal kit, OX-07, 34L cyl 100% N2, reg with gauge & knob, cal cup, case & tubing SKU: 81-OX07-LV Price: $380.00 In Stock	Cal kit, RI-415/RX-8000, 34L cyl 50% LEL CH4/Air, 34L cyl 50% vol CH4/Air, disp valve, gas bag, two gas bags, case & tubing SKU: 81-RI415CH4 Price: $335.00 In Stock
Cal kit, RI-415/RX-8000, 34L cyl 50% LEL isobutane/Air, 17L cyl 10% vol isobutane/N2, disp valve, two gas bags, case & tubing SKU: 81-RI415HC Price: $325.00 In Stock	Cal kit, RI-600, CO2 2,000 ppm in N2, 34L cyl, N2 100%, 34L cyl, cal cup, regulator, case & tubing SKU: 81-RI60002K-LV Price: $380.00 In Stock
Cal kit, RI-600, CO2 2.5% in N2, 34L cyl, N2 100%, 34L cyl, cal cup, regulator, case & tubing SKU: 81-RI60050K-LV Price: $380.00 In Stock	Cal kit, RI-600, CO2 5,000 ppm in N2, 34L cyl, N2 100%, 34L cyl, cal cup, regulator, case & tubing SKU: 81-RI60005K-LV Price: $380.00 In Stock
Cal kit, RI-85, 34L cyl 2.5% CO2/N2, 34L cyl 100% N2, disp valve, gas bag, case & tubing SKU: 81-RI85-05 Price: $270.00 In Stock	Cal kit, RI-85, 34L cyl 5, 000 ppm CO2/N2, 34L cyl 100% N2, disp valve, gas bag, case & tubing SKU: 81-RI85 Price: $270.00 In Stock