Product Description
CH₄ 3.75% (75% LEL) / Nitrogen (N₂) Balance Calibration Gas
Ensure accurate combustible gas detector performance 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. Supplied in a 680-liter refillable aluminum cylinder with an 1800 PSI fill pressure and a CGA specific valve connection, this non-reactive calibration gas mixture provides stable, repeatable gas concentrations for dependable detector verification and long-term sensor accuracy.
Containing 3.75% methane (75% of the Lower Explosive Limit), this calibration gas is specifically designed to verify combustible gas detectors that monitor methane concentrations in hazardous industrial environments where reliable LEL measurements are critical for personnel safety.
Calibration Gas Composition
| Gas | Concentration |
|---|---|
| Methane (CH₄) | 3.75% (75% LEL) |
| Balance Gas | Nitrogen (N₂) |
This methane calibration gas is relied upon by industrial hygienists, EHS professionals, maintenance technicians, and safety managers to calibrate combustible gas detectors used throughout oil & gas, petrochemical processing, manufacturing, mining, wastewater treatment, utilities, chemical processing, confined space entry, and other industries where continuous methane monitoring is essential for safety and regulatory compliance.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 680 Liters |
| Pressure | 1800 PSI |
| Water Capacity | 19 Cubic Feet |
| Valve Connection | CGA Specific |
| Cylinder Material | Aluminum |
| Cylinder Type | Refillable |
| Reactivity | Non-Reactive |
The 680-liter refillable aluminum cylinder provides a high-capacity solution for facilities with frequent calibration schedules and multiple gas detection instruments. Its durable construction minimizes cylinder changeouts while supplying 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 reliability 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.
