Description
20% LEL Methane (CH₄) Calibration Gas for Early Combustible Gas Detection
This Methane (CH₄) calibration gas at 20% of the Lower Explosive Limit (LEL) is designed for precise calibration of combustible gas detection systems used in industrial safety and leak detection applications. Supplied in a 103-liter cylinder, this mixture ensures accurate and reliable sensor performance.
Methane is a highly flammable gas commonly found in natural gas systems, pipelines, and industrial environments. Proper detection is critical to prevent explosive conditions. This calibration gas supports systems used in gas life safety systems and combustible gas monitoring programs.
The 20% LEL concentration is typically used for lower-range calibration and early-stage detection verification.
Calibration Profile: Methane (CH₄) at 20% LEL
This lower-range methane blend is suited to early combustible detector verification and lower alarm-point testing.
20% LEL
Specifications
- Gas: Methane (CH₄)
- Concentration: 20% LEL
- Equivalent Volume: 1.00% Vol
- Balance Gas: Air
- Cylinder Size: 103 Liter
- Accuracy: ±2%
- Part Number: G103L-CH4-20L-I
- Lead Time: 4 business days
Compatibility & Ordering Notes
- Confirm your regulator and flow configuration are compatible with combustible gas calibration cylinders.
- Ensure your detector is configured for methane (%LEL) calibration and supports lower-range verification.
- Custom methane blends, alternative cylinder sizes, and regulator options are available upon request.
Applications
- Calibration of combustible gas detectors
- Natural gas and pipeline monitoring
- Industrial leak detection systems
- Explosion prevention systems
- Used with gas pipeline leak detection
Selecting a Methane Calibration Gas
A 20% LEL methane calibration gas is commonly used for early detection verification and lower alarm setpoints. When selecting your calibration gas, consider your system’s detection range, alarm configuration, and whether your application focuses on early leak detection or standard compliance testing.
Available Methane Gas Concentrations
Frequently Asked Questions
- What is 20% LEL methane used for?
It is used for calibrating detectors at lower alarm thresholds for early leak detection. - Why measure methane in LEL?
Methane is flammable, so LEL is used to measure explosion risk rather than toxicity. - Where is methane monitoring required?
Common in oil & gas, pipelines, utilities, and industrial facilities.
Additional Options
- Custom gas mixtures not listed: Available upon request
- Alternative regulators and flow configurations: Available upon request
- Different cylinder sizes within calibration kits: Available upon request
Need Help with Combustible Gas Calibration?
MDC Systems provides calibration gas supply, system support, and maintenance services to ensure reliable methane detection and safe operation of combustible gas monitoring systems.





