Methane 2.5% (50% LEL)/ Oxygen / Nitrogen Calibration Gas

Methane 2.5% (50% LEL) / Oxygen / Nitrogen Calibration Gas

The Methane 2.5% (50% LEL) / Oxygen / Nitrogen Calibration Gas Cylinder is a certified calibration gas mixture designed for calibrating and bump testing compatible combustible gas and oxygen detectors. Containing methane at 2.5% by volume (50% of the Lower Explosive Limit), this mixture helps verify detector response to combustible gas hazards while also confirming proper oxygen sensor operation.

Commonly used by industrial facilities, utility companies, wastewater treatment plants, confined space entry teams, emergency responders, and safety professionals, this calibration gas supports routine maintenance programs that help ensure gas detection equipment performs accurately in the field.

Available Oxygen Concentrations

To meet various detector manufacturer requirements, this calibration gas mixture is available with 17%, 18%, or 19% oxygen, balanced with nitrogen. These options allow users to select the proper mixture for compatible gas detection instruments and application-specific calibration procedures.

Reliable Calibration for Combustible Gas Monitoring

Routine calibration and bump testing are essential for maintaining dependable gas detector performance. Using a certified methane calibration gas helps verify combustible gas sensor accuracy, identify sensor drift, and confirm proper alarm activation before personnel enter hazardous environments.

When paired with the appropriate fixed-flow or demand-flow regulator, this gas mixture provides consistent calibration performance for many leading portable and fixed gas detection systems.

Key Features

• Certified Methane 2.5% (50% LEL) calibration gas mixture
• Available with 17%, 18%, or 19% oxygen concentrations
• Balance nitrogen for stable calibration performance
• Designed for combustible gas and oxygen detector calibration
• Suitable for routine calibration and bump testing
• Helps verify detector accuracy and alarm response
• Compatible with many portable and fixed gas detection instruments
• Ideal for professional industrial safety programs

Common Applications

• Methane gas detector calibration
• Combustible gas monitor bump testing
• Oxygen sensor verification
• Confined space entry programs
• Wastewater treatment facilities
• Oil and gas operations
• Industrial manufacturing plants
• Utility maintenance
• Emergency response equipment maintenance
• Occupational health and safety compliance

Calibration Solutions for Demanding Safety Programs

Activated Carbon Depot supplies certified calibration gases, regulators, and gas detection accessories trusted by safety managers, utilities, industrial facilities, laboratories, and emergency response organizations. Our products help maintain accurate gas detection equipment, simplify routine calibration, and support safer workplaces across a wide range of industries.