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.

Cylinder, SO2 200 ppm / CO2 20% vol in N2, 116AL SKU: 81-9039RK-116 Price: $336.00 In Stock	Cylinder, SO2 200 ppm / CO2 20% vol in N2, 58AL SKU: 81-9039RK-02 Price: $231.00 In Stock
Cylinder, SO2 5 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 58AL SKU: 81-0159RK-02 Price: $200.00 In Stock	Cylinder, SO2 5 ppm / H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 34AL SKU: 81-0142RK-04 Price: $200.00 In Stock
Cylinder, SO2 5 ppm / H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 58AL SKU: 81-0142RK-02 Price: $294.00 In Stock	Cylinder, SO2 5 ppm in N2, 34AL SKU: 81-0170RK-04 Price: $147.00 In Stock
Cylinder, SO2 5 ppm in N2, 58AL SKU: 81-0170RK-02 Price: $168.00 In Stock	Cylinder, Toluene 400 ppm in air, 34AL SKU: 81-0102RK-04 Price: $158.00 In Stock
Cylinder, Zero air, 103L steel SKU: 81-0076RK-03 Price: $158.00 In Stock	Cylinder, Zero air, 34L steel SKU: 81-0076RK-01 Price: $58.00 In Stock
Cylinder,1-Hexene (C6H12) 25% LEL(0.3% vol) in air,103L steel SKU: 81-9076RK-03 Price: $158.00 In Stock	Cylinder,Butane 40% LEL in Air, 34L steel SKU: 81-9058RK-01 Price: $58.00 In Stock
Cylinder,CH4 100 ppm in air,58AL SKU: 81-9067RK-02 Price: $158.00 In Stock	Cylinder,CH4 3000 ppm in Air,103L SKU: 81-9015RK-03 Price: $158.00 In Stock
Cylinder,CH4 35% LEL in Air,552L, CGA580 SKU: 81-0010RK-36 Price: $380.00 In Stock	Cylinder,CH4 50% LEL in Air,100AL refillable SKU: 81-0012RK-R100 Price: $185.00 In Stock
Cylinder,CH4 50% LEL in Air,34AL for EU SKU: 81-0012RK-04 Price: $150.00 In Stock	Cylinder,CH4 50% LEL in real air,2.5% CH4/0.04% CO2/0.91% argon/20.43% oxygen/N2 balance,58L SKU: 81-9070-05 Price: $150.00 In Stock
Cylinder,CH4 60% LEL in Air,103L SKU: 81-9011RK-03 Price: $158.00 In Stock	Cylinder,CH4 60% LEL in N2,34L steel SKU: 81-9080RK-01 Price: $58.00 In Stock
Cylinder,Cl2 10 ppm in N2,34 European AL SKU: 81-0191RK-E04 Price: $368.00 In Stock	Cylinder,Cl2 5 ppm in N2,116L SKU: 81-0190RK-116 Price: $420.00 In Stock
Cylinder,CO 2% vol (16%LEL) balance air,103L SKU: 81-9008RK-03 Price: $158.00 In Stock	Cylinder,CO 50 ppm in Air,100AL refillable SKU: 81-0064RK-R100 Price: $185.00 In Stock
Cylinder,CO2 13.8% vol/Butane 8% vol in N2,34AL SKU: 81-0096RK-04 Price: $158.00 In Stock	Cylinder,CO2 15% in N2,44ES AL,825 psi SKU: 81-0073RK-H04 Price: $127.00 In Stock
Cylinder,CO2 99.99%,116AL SKU: 81-9060RK-116 Price: $352.00 In Stock	Cylinder,Ethanol 260 ppm in N2,116AL SKU: 81-9052RK-116 Price: $274.00 In Stock
Cylinder,H2 1.3% vol (33 %LEL)in Air,103L SKU: 81-0001RK-43 Price: $150.00 In Stock	Cylinder,H2 25% LEL in Air, 103L SKU: 81-0001RK-03 Price: $158.00 In Stock
Cylinder,H2 250 ppm in air,58L SKU: 81-0032RK-05 Price: $158.00 In Stock	Cylinder,H2 50% LEL in Air,34AL for EU SKU: 81-0002RK-04 Price: $150.00 In Stock
Cylinder,H2S 1 ppm in N2,116AL SKU: 81-9032RK-116 Price: $264.00 In Stock	Cylinder,H2S 1000 ppm in air,58AL SKU: 81-9083RK-02 Price: $158.00 In Stock
Cylinder,H2S 15 ppm,CO 50PPM, CH4 2.5% (50%LEL) O2 18% BAL N2 34AL SKU: 81-9091RK-04 Price: $150.00 In Stock	Cylinder,H2S 20 ppm, CO 60 ppm,O2 15%, Pentane 58% LEL in N2,7AL SKU: 81-9078RK-07 Price: $137.00 In Stock
Cylinder,H2S 20 ppm/Propane 1.1% vol in air,116AL SKU: 81-9056RK-116 Price: $420.00 In Stock	Cylinder,H2S 20 ppm/Propane 50% LEL in N2,116AL cyl SKU: 81-9027RK-116 Price: $420.00 In Stock
Cylinder,H2S 25 ppm in N2,34AL SKU: 81-0151RKTYS-02 Price: $100.00 In Stock	Cylinder,H2S 25 ppm in N2,34AL European Approved SKU: 81-0151RK-E04 Price: $158.00 In Stock