CH4 2.5% (50% LEL)

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 30 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 66L

4 Gas H2S CO CH4 O2 Calibration Gas – 66L Cylinder This four-gas calibration mixture allows technicians to confirm detector response where both oxygen depletion and lower carbon monoxide alarm thresholds must be validated. The blend activates...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 116L

4 Gas H2S CO CH4 O2 Calibration Gas – 116L Cylinder This four-gas calibration mixture is used to confirm detector performance where oxygen deficiency and combustible hazards must be verified together. The reduced oxygen concentration activates...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 34L

4 Gas H2S CO CH4 O2 Calibration Gas – 34L Cylinder This compact four-gas calibration mixture verifies detector performance in oxygen-deficient and combustible atmospheres using a single cylinder. Designed for portable bump testing, it allows...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 60L

4 Gas H2S CO CH4 O2 Calibration Gas – 60L Cylinder This four-gas calibration mixture allows technicians to verify detector response in oxygen-deficient and combustible atmospheres using one portable cylinder. The reduced oxygen concentration is...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 66L

4 Gas H2S CO CH4 O2 Calibration Gas – 66L Cylinder This 4-gas calibration mixture is designed for verifying detector response in hazardous atmospheres where oxygen depletion and combustible risk occur simultaneously. The lower oxygen concentration...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 50 PPM /Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 120L

4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder This four-gas calibration mixture is designed for continuous bump-testing programs and multi-instrument verification. The reduced oxygen concentration triggers alarm response while toxic and...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 50 PPM /Methane (CH₄) 2.5% (50% LEL)/ Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 60L

4 Gas H2S CO CH4 O2 Calibration Gas – 60L Cylinder This four-gas calibration mixture allows technicians to verify detector response in oxygen-deficient and combustible atmospheres using one portable cylinder. The reduced oxygen concentration is...

Hydrogen Sulfide (H₂S) 75 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 16.0% / Nitrogen BAL Calibration Gas – 116L – Custom Mix

4 Gas H2S CO CH4 O2 Calibration Gas – 116L Cylinder This 4-gas calibration mixture is designed for technicians performing frequent bump testing and routine detector verification. The 116L cylinder provides extended testing capacity while...

Hydrogen Sulfide (H₂S) 75 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 16.0% / Nitrogen BAL Calibration Gas – 120L – Custom Mix

4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder Built for crews performing continuous monitoring or high-volume bump testing, this 4-gas calibration mixture verifies toxic, oxygen-deficiency, and combustible channels in a single application...

Hydrogen Sulfide (H₂S) 75 PPM / Carbon Monoxide (CO) 100 PPM /Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 16.0% / Nitrogen BAL Calibration Gas – 34L

4 Gas H2S CO CH4 O2 Calibration Gas – 34L Cylinder This four-gas calibration mixture allows technicians to verify detector performance across toxic exposure, oxygen deficiency, and combustible hazards using a single portable cylinder. Ideal for...