Product Description
Quad Calibration Gas for Portable Multi-Gas Detector Verification
This four-gas calibration mixture contains Hydrogen Sulfide (H₂S) 25 ppm, Carbon Monoxide (CO) 50 ppm, Methane (CH₄) 1.25% (25% LEL), and Oxygen (O₂) 18.0% balanced with Nitrogen.
The mixture is commonly used for routine calibration and bump testing of portable gas detection instruments that measure toxic gas exposure, combustible gas concentrations and oxygen levels in industrial work environments.
Delivered in a 66L disposable aluminum cylinder pressurized to 1150 PSI with a C-10 valve, this calibration gas cylinder provides dependable supply for scheduled detector maintenance and sensor verification.
Gas Composition – Hydrogen Sulfide, Carbon Monoxide, Methane and Oxygen
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 ppm |
| Carbon Monoxide (CO) | 50 ppm |
| Methane (CH₄) | 1.25% (25% LEL) |
| Oxygen (O₂) | 18.0% |
| Balance Gas | Nitrogen |
This H₂S CO CH₄ O₂ calibration gas mixture is widely used to verify proper sensor response in portable gas monitors prior to hazardous work activities such as confined space entry.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 66L |
| Pressure | 1150 PSI |
| Cylinder Material | Aluminum |
| Valve Type | C-10 |
| Cylinder Type | Disposable |
| Gas Reactivity | Reactive |
| Volume Equivalent | 2.3 Cubic Feet |
The 66L cylinder size offers an effective balance of portability and calibration capacity, making it well suited for technicians servicing multiple gas detectors in the field.
Typical Applications
• Portable gas detector calibration
• Multi-gas monitor bump testing
• Confined space entry programs
• Industrial safety compliance inspections
• Gas detector sensor verification
Routine calibration helps ensure reliable detector response to hydrogen sulfide exposure, carbon monoxide hazards, combustible gas levels and oxygen concentration changes.
Custom Calibration Gas Mixtures
If your gas detection instrument requires a different concentration or mixture, custom calibration gas blends are available. We produce calibration gases for a wide range of portable gas detectors and industrial monitoring equipment.
Contact our team for a custom calibration gas quote.
