Product Description
120L 1050 PSI 4-Gas Calibration Cylinder – 18.0% Oxygen Deficiency Blend
This high-capacity 4-gas calibration cylinder is engineered for organizations managing extensive multi-gas detector fleets and centralized compliance workflows.
Gas Mixture Specifications
Hydrogen Sulfide (H₂S) – 25 PPM
Carbon Monoxide (CO) – 100 PPM
Methane (CH₄) – 2.5% (50% LEL)
Oxygen (O₂) – 18.0%
Balance Gas – Nitrogen
The 18.0% oxygen concentration provides a structured deficiency environment to confirm alarm activation below OSHA’s 19.5% oxygen requirement.
Cylinder Data
Capacity: 120L (4.2 Cubic Feet)
Fill Pressure: 1050 PSI
Valve Type: C-10
Construction: Aluminum
Reactivity Classification: Reactive
The 1050 PSI fill pressure delivers extended calibration volume, reducing cylinder replacement frequency in high-usage programs.
Program-Level Applications
• Centralized detector calibration stations
• Fleet-wide bump test scheduling
• Confined space compliance programs
• Industrial hygiene departments
• High-cycle sensor validation environments
Methane at 2.5% represents 50% LEL for combustible sensor performance checks.
CO at 100 PPM aligns with common low-alarm calibration thresholds.
Oxygen Deficiency Tiering
20.9% → Ambient simulation
19.0% → Mild deficiency
18.5% → OSHA threshold validation
18.0% → Controlled enhanced deficiency
17.0% → Aggressive alarm trigger simulation
This 120L configuration is selected when operational efficiency and long calibration intervals are priorities.
