Product Description
CH₄ 3.75% (75% LEL) / Nitrogen (N₂) Balance Calibration Gas
Discover reliable CH₄ 3.75% (75% LEL) / Nitrogen (N₂) balance calibration gas engineered for accurate calibration, bump testing, and preventative maintenance of portable and fixed gas detection systems. Supplied in a 66-liter refillable aluminum cylinder with a 1150 PSI fill pressure and a C-10 valve connection, this non-reactive calibration gas mixture delivers stable, repeatable gas concentrations for dependable detector verification and long-term sensor performance.
A concentration of 3.75% methane represents 75% of the Lower Explosive Limit (LEL), making this calibration gas ideal for verifying combustible gas detectors that monitor methane in hazardous industrial environments.
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, and safety managers to calibrate combustible gas detectors across oil & gas, manufacturing, wastewater treatment, mining, utilities, chemical processing, confined space entry, energy production, and other industrial applications where reliable gas monitoring is essential for worker safety and regulatory compliance.
Cylinder Specifications
| Specification | Value |
|---|---|
| Cylinder Size | 66 Liters |
| Pressure | 1150 PSI |
| Water Capacity | 2.3 Cubic Feet |
| Valve Connection | C-10 |
| Cylinder Material | Aluminum |
| Cylinder Type | Refillable |
| Reactivity | Non-Reactive |
The 66-liter refillable aluminum cylinder provides an excellent balance between portability and capacity, making it well suited for routine calibration schedules and frequent detector maintenance. Its lightweight yet durable construction delivers a dependable supply of calibration gas for bump testing, detector verification, preventative maintenance, maintaining detector accuracy, verifying sensor response, reducing instrument drift, and extending the service life 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.
