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, H2S 1 ppm in N2, 58AL SKU: 81-0147RK-02 Price: $264.00 In Stock	Cylinder, H2S 10 ppm / CO 300 ppm / CH4 1.45 % vol / O2 15% vol in N2, 34AL SKU: 81-0138RK-04 Price: $158.00 In Stock
Cylinder, H2S 10 ppm / CO 50 ppm / O2 18% / CH4 50% LEL in N2, 58AL SKU: 81-9018RK-02 Price: $231.00 In Stock	Cylinder, H2S 10 ppm / CO 60 ppm / CH4 58% LEL / O2 15% in N2, 34AL SKU: 81-9012RK-04 Price: $158.00 In Stock
Cylinder, H2S 10 ppm in N2, 34AL SKU: 81-0150RK-04 Price: $137.00 In Stock	Cylinder, H2S 10 ppm in N2, 58AL SKU: 81-0150RK-02 Price: $158.00 In Stock
Cylinder, H2S 15 ppm in N2, 58AL SKU: 81-0148RK-02 Price: $189.00 In Stock	Cylinder, H2S 20 ppm / CO 60 ppm / CH4 29% LEL / O2 15% in N2, 34AL SKU: 81-0141RK-04 Price: $158.00 In Stock
Cylinder, H2S 20 ppm / CO 60 ppm / CH4 58% LEL / O2 15% in N2, 34AL SKU: 81-9013RK-01 Price: $158.00 In Stock	Cylinder, H2S 20 ppm / CO 60 ppm / Pentane 58% LEL / CO2 2.5% / O2 15% in N2, 58AL SKU: 81-0136RK-02 Price: $315.00 In Stock
Cylinder, H2S 20 ppm / CO 60 ppm / Pentane 58% LEL / O2 15% in N2, 58AL SKU: 81-0135RK-02 Price: $294.00 In Stock	Cylinder, H2S 200 ppm in N2, 58AL SKU: 81-0146RK-02 Price: $158.00 In Stock
Cylinder, H2S 25 ppm / CO 100 ppm / CH4 50% LEL (2.5% vol) / O2 18% in N2, 58AL SKU: 81-0161RK-02 Price: $231.00 In Stock	Cylinder, H2S 25 ppm / CO 100 ppm / CH4 50% LEL (2.5% vol) / O2 19% in N2, 58AL SKU: 81-0162RK-02 Price: $231.00 In Stock
Cylinder, H2S 25 ppm / CO 100 ppm / CH4 50% LEL (2.5% vol)/O2 18% in N2, 34AL SKU: 81-0161RK-04 Price: $158.00 In Stock	Cylinder, H2S 25 ppm / CO 100 ppm / CH4 50% LEL(2.5% vol)/O2 19% in N2, 34AL SKU: 81-0162RK-04 Price: $168.00 In Stock
Cylinder, H2S 25 ppm / CO 150 ppm / CH4 50% LEL (2.5% vol) / O2 15% in N2, 58AL SKU: 81-0164RK-02 Price: $231.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 116AL SKU: 81-0154RK-116 Price: $336.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 34AL SKU: 81-0154RK-04 Price: $168.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 58AL SKU: 81-0154RK-02 Price: $200.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 7AL bump, non-hazmat SKU: 81-0154RK-07 Price: $132.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 20.9% in N2, 58AL SKU: 81-9002RK-02 Price: $259.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / HEX 15% LEL / O2 12% in N2, 34AL SKU: 81-0155RK-04 Price: $168.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / HEX 15% LEL / O2 12% in N2, 58AL SKU: 81-0155RK-02 Price: $231.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / isobutane 50% LEL / O2 12% in N2, 29AL SKU: 81-0158RK-08 Price: $158.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / isobutane 50% LEL / O2 12% in N2, 34AL SKU: 81-0158RK-04 Price: $168.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / isobutane 50% LEL / O2 12% in N2, 58AL SKU: 81-0158RK-02 Price: $231.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / Pentane 25% LEL (0.35% vol) / O2 15% in N2, 58AL SKU: 81-9003RK-02 Price: $231.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / Pentane 32% LEL / O2 14% in N2, 34AL SKU: 81-0156RK-04 Price: $180.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / Pentane 32% LEL / O2 14% in N2, 58AL SKU: 81-0156RK-02 Price: $231.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / Pentane 50% LEL / O2 12% bal N2, 34AL SKU: 81-0156RK-54 Price: $168.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / Pentane 50% LEL / O2 12% in N2, 58AL SKU: 81-0156RK-52 Price: $241.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / Propane 50% LEL (1.05% vol) / O2 18% in N2, 34AL SKU: 81-0163RK-04 Price: $188.00 In Stock	Cylinder, H2S 25 ppm / CO 50 ppm / Propane 50% LEL / O2 12% in N2, 34AL SKU: 81-0167RK-04 Price: $190.00 In Stock
Cylinder, H2S 25 ppm / CO 50 ppm / Propane 50% LEL/O2 12% in N2, 58AL SKU: 81-0167RK-02 Price: $231.00 In Stock	Cylinder, H2S 25 ppm in N2, 34AL SKU: 81-0151RK-04 Price: $137.00 In Stock
Cylinder, H2S 25 ppm in N2, 58AL SKU: 81-0151RK-02 Price: $158.00 In Stock	Cylinder, H2S 5 ppm in N2, 34AL SKU: 81-0149RK-04 Price: $137.00 In Stock
Cylinder, H2S 5 ppm in N2, 58AL SKU: 81-0149RK-02 Price: $179.00 In Stock	Cylinder, H2S 50 ppm in AIR, 58AL SKU: 81-0153RK-02 Price: $158.00 In Stock