Product Description
CH₄ 3.75% (75% LEL) / Nitrogen (N₂) Balance Calibration Gas
Protect the accuracy of your gas detection equipment with this CH₄ 3.75% (75% LEL) / Nitrogen (N₂) balance calibration gas, formulated for calibration, bump testing, and preventative maintenance of portable and fixed gas detection systems. Packaged in a 221-liter disposable steel cylinder with a 250 PSI fill pressure and a CGA-165 valve connection, this non-reactive calibration gas mixture delivers stable, repeatable gas concentrations for dependable detector verification and consistent sensor performance.
Containing 3.75% methane (75% of the Lower Explosive Limit), this calibration gas is designed to verify combustible gas detectors that monitor methane concentrations in hazardous industrial environments where reliable LEL measurements are critical for workplace safety and regulatory compliance.
Calibration Gas Composition
| Gas | Concentration |
|---|---|
| Methane (CH₄) | 3.75% (75% LEL) |
| Balance Gas | Nitrogen (N₂) |
This methane calibration gas is trusted by industrial hygienists, EHS professionals, maintenance technicians, safety managers, and environmental specialists to calibrate combustible gas detectors used throughout oil & gas, petrochemical processing, manufacturing, mining, wastewater treatment, utilities, chemical processing, confined space entry, and numerous industrial applications where dependable methane monitoring is essential.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 221 Liters |
| Pressure | 250 PSI |
| Water Capacity | 7.5 Cubic Feet |
| Valve Connection | CGA-165 |
| Cylinder Material | Steel |
| Cylinder Type | Disposable |
| Reactivity | Non-Reactive |
The 221-liter disposable steel cylinder provides an ideal balance of portability and gas capacity for routine calibration programs, service technicians, and industrial maintenance teams. Its durable steel construction supplies a dependable source of calibration gas for bump testing, detector verification, preventative maintenance, maintaining detector accuracy, verifying sensor response, reducing instrument drift, and maximizing the performance of portable and fixed gas detection systems.
If your application requires a different methane concentration, LEL percentage, cylinder size, or specialty gas blend, we manufacture custom calibration gas mixtures for virtually every gas detection application. Contact our team for a fast custom quote if your required mixture is not available in our e-commerce store.
