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.

Click Image For More Details RKI 81-0158RK-02, Calibration Gas Cylinder, H2S 25 ppm / CO 50 ppm / isobutane 50% LEL / O2 12% in N2, 58AL by RKI Industries SKU: T-RKI-81-0158RK-02 Price: $231.00 In Stock	Click Image For More Details RKI 81-0158RK-04, Calibration Gas Cylinder, H2S 25 ppm / CO 50 ppm / isobutane 50% LEL / O2 12% in N2, 34AL by RKI Industries SKU: T-RKI-81-0158RK-04 Price: $168.00 In Stock
Click Image For More Details RKI 81-0158RK-08, Calibration Gas Cylinder, H2S 25 ppm / CO 50 ppm / isobutane 50% LEL / O2 12% in N2, 29AL by RKI Industries SKU: T-RKI-81-0158RK-08 Price: $158.00 In Stock	Click Image For More Details RKI 81-0159RK-02, Calibration Gas Cylinder, SO2 5 ppm /CO 50 ppm / CH4 50% LEL / O2 12% in N2, 58AL by RKI Industries SKU: T-RKI-81-0159RK-02 Price: $200.00 In Stock
Click Image For More Details RKI 81-0160RK-02, Calibration Gas Cylinder, 10ppm H2S/50 ppm CO/50% LEL CH4/12% O2, 58L by RKI Industries SKU: T-RKI-81-0160RK-02 Price: $350.00 In Stock	Click Image For More Details RKI 81-0161rk-02, calibration gas cylinder, 25ppm h2s, 100ppm co, 2.5% ch4, 18% o2, 58l SKU: T-RKI-81-0161RK-02 Price: $231.00 In Stock
Click Image For More Details RKI 81-0161rk-04, calibration gas cylinder, 25ppm h2s, 100ppm co, 2.5% ch4, 18% o2, 34l SKU: T-RKI-81-0161RK-04 Price: $158.00 In Stock	Click Image For More Details RKI 81-0162rk-04, calibration gas cylinder, 25ppm h2s, 100ppm co, 2.5% ch4, 19% o2, 34l SKU: T-RKI-81-0162RK-04 Price: $168.00 In Stock
Click Image For More Details RKI 81-0165RK-02, Calibration Gas Cylinder, Silane 5 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0165RK-02 Price: $420.00 In Stock	Click Image For More Details RKI 81-0170RK-02, Calibration Gas Cylinder, SO2 5 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0170RK-02 Price: $168.00 In Stock
Click Image For More Details RKI 81-0170RK-04, Calibration Gas Cylinder, SO2 5 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0170RK-04 Price: $147.00 In Stock	Click Image For More Details RKI 81-0174RK-02, Calibration Gas Cylinder, Ammonia, 50ppm in N2, 58L by RKI Industries SKU: T-RKI-81-0174RK-02 Price: $300.00 In Stock
Click Image For More Details RKI 81-0176RK-02, Calibration Gas Cylinder, Ammonia, 25 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0176RK-02 Price: $300.00 In Stock	Click Image For More Details RKI 81-0176RK-04, Calibration Gas Cylinder, Ammonia, 25 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0176RK-04 Price: $294.00 In Stock
Click Image For More Details RKI 81-0177RK-03, Calibration Gas Cylinder, Nitrogen Trifluoride, 25 ppm in N2, 103L by RKI Industries SKU: T-RKI-81-0177RK-03 Price: $510.00 In Stock	Click Image For More Details RKI 81-0180RK-02, Calibration Gas Cylinder, NO2, 10 ppm in Air, 58AL by RKI Industries SKU: T-RKI-81-0180RK-02 Price: $300.00 In Stock
Click Image For More Details RKI 81-0180RK-04, Calibration Gas Cylinder, NO2, 10 ppm in Air, 34AL by RKI Industries SKU: T-RKI-81-0180RK-04 Price: $274.00 In Stock	Click Image For More Details RKI 81-0181RK-02, Calibration Gas Cylinder, NO, 25 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0181RK-02 Price: $300.00 In Stock
Click Image For More Details RKI 81-0181RK-04, Calibration Gas Cylinder, NO, 25 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0181RK-04 Price: $274.00 In Stock	Click Image For More Details RKI 81-0190RK-02, Calibration Gas Cylinder, Cl2, 5 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0190RK-02 Price: $390.00 In Stock
Click Image For More Details RKI 81-0190RK-04, Calibration Gas Cylinder, Cl2, 5 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0190RK-04 Price: $231.00 In Stock	Click Image For More Details RKI 81-0191RK-02, Calibration Gas Cylinder, Cl2, 10 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0191RK-02 Price: $355.00 In Stock
Click Image For More Details RKI 81-0191RK-04, Calibration Gas Cylinder, Cl2, 10 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0191RK-04 Price: $231.00 In Stock	Click Image For More Details RKI 81-0192RK-02, Calibration Gas Cylinder, Cl2, 2 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0192RK-02 Price: $360.00 In Stock
Click Image For More Details RKI 81-0192RK-04, Calibration Gas Cylinder, Cl2, 2 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0192RK-04 Price: $231.00 In Stock	Click Image For More Details RKI 81-0194RK-02, Calibration Gas Cylinder, HCl, 10 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0194RK-02 Price: $300.00 In Stock
Click Image For More Details RKI 81-0195RK-02, Calibration Gas Cylinder, HCl, 5 ppm in N2, 58AL by RKI Industries SKU: T-RKI-81-0195RK-02 Price: $300.00 In Stock	Click Image For More Details RKI 81-0195RK-04, Calibration Gas Cylinder, HCl, 5 ppm in N2, 34AL by RKI Industries SKU: T-RKI-81-0195RK-04 Price: $294.00 In Stock
RP-3R pump for GX-3R/GX-3R Pro SKU: 81-1155 Price: $57.00 In Stock	Sample adapter,screw-on,CT-7 type fixed sensor,flow through SKU: 81-1133RK Price: $53.00 In Stock
Sample adaptor for GX-2001 or GX-2009, rigid plastic, used with RP-6 SKU: 81-1106RK Price: $28.00 In Stock