O2 12.0%

Hydrogen Sulfide (H₂S) 10 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL 4-Gas Calibration Gas – 60L 1000 PSI C-10 Aluminum (Reactive)

60L 12.0% O₂ Calibration Gas – Ultra-Low Oxygen Alarm Verification This 60L reactive 4-gas calibration cylinder is engineered to simulate ultra-low oxygen conditions at 12.0% O₂, enabling advanced alarm validation well below OSHA’s 19.5%...

Hydrogen Sulfide (H₂S) 10 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 15.0% / Nitrogen BAL 4-Gas Calibration Gas – 60L 1000 PSI C-10 Aluminum (Reactive)

60L 15.0% O₂ Calibration Gas – Severe Oxygen Deficiency Validation This 60 Liter reactive 4-gas calibration cylinder is engineered for structured simulation of extreme oxygen-deficient conditions at 15.0% O₂, significantly below OSHA’s 19.5%...