Methane 0.375% (7.5% LEL)/ Oxygen 20.9%/ Nitrogen Calibration Gas

Methane 0.375% (7.5% LEL) / Oxygen 20.9% / Nitrogen Calibration Gas

The Methane 0.375% (7.5% LEL) / Oxygen 20.9% / Nitrogen Calibration Gas Cylinder is a certified gas mixture designed for calibrating and bump testing compatible combustible gas and oxygen detectors. Containing 0.375% methane (7.5% of the Lower Explosive Limit) and 20.9% oxygen, this mixture provides a reliable standard for verifying combustible gas sensor response while confirming proper oxygen sensor performance under normal atmospheric oxygen conditions.

Trusted by safety professionals across manufacturing, utilities, wastewater treatment, chemical processing, oil and gas, mining, and confined space operations, this calibration gas helps ensure gas detection equipment performs accurately before personnel enter hazardous work environments.

Designed for Routine Gas Detector Maintenance

Regular calibration and bump testing help identify sensor drift, verify alarm activation, and ensure combustible gas and oxygen sensors remain within manufacturer specifications. Using certified calibration gas improves confidence that gas monitors will respond properly when hazardous methane concentrations are present.

The 20.9% oxygen concentration represents normal atmospheric oxygen levels, making this mixture ideal for confirming oxygen sensor accuracy while simultaneously testing methane detection capabilities.

Reliable Performance for Industrial Safety Programs

Whether supporting confined space entry, preventive maintenance programs, facility safety inspections, environmental monitoring, or emergency response operations, this calibration gas provides dependable performance for routine instrument verification and compliance testing.

Key Features

• Certified Methane 0.375% (7.5% LEL) calibration gas mixture
• Contains 20.9% oxygen with balance nitrogen
• Designed for combustible gas and oxygen detector calibration
• Suitable for calibration and bump testing
• Helps verify detector accuracy and alarm functionality
• Supports preventive maintenance and safety compliance programs
• Compatible with many portable and fixed gas detection instruments
• Manufactured for professional industrial safety applications

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
• Chemical processing plants
• Industrial manufacturing facilities
• Utility maintenance programs
• Occupational safety compliance

Professional Calibration Gases for Reliable Gas Detection

Activated Carbon Depot supplies certified calibration gases, specialty gas mixtures, regulators, and gas detection accessories for industrial safety professionals, municipalities, laboratories, utilities, and emergency response organizations. Our products help maintain dependable gas monitoring equipment, improve calibration accuracy, and support workplace safety across a wide variety of industries.