Carbon Monoxide 50 ppm / Oxygen 18% / Nitrogen Calibration Gas

Carbon Monoxide 50 ppm / Oxygen 18% / Balance Nitrogen Calibration Gas

This Carbon Monoxide and Oxygen Calibration Gas provides a controlled mixture of 50 ppm carbon monoxide, 18% oxygen, and balance nitrogen for calibrating and bump testing compatible portable and fixed gas detectors. The defined concentrations allow safety professionals to verify that carbon monoxide and oxygen sensors respond properly before monitoring equipment is placed into service.

Designed for industrial safety programs, confined-space operations, utility work, facility maintenance, emergency response, and equipment service departments, this calibration gas mixture supports routine detector testing and preventive maintenance procedures.

Dual-Sensor Testing for CO and Oxygen Monitors

This mixture allows compatible instruments to be exposed to both carbon monoxide and a reduced oxygen concentration during the same testing procedure. The 50 ppm carbon monoxide component verifies CO sensor response, while the 18% oxygen concentration helps evaluate the instrument’s oxygen sensor and low-oxygen alarm response.

Always confirm that the gas concentration, cylinder connection, regulator flow rate, and calibration procedure meet the requirements specified by the gas detector manufacturer.

Gas Mixture

• Carbon Monoxide: 50 ppm
• Oxygen: 18% by volume
• Balance Gas: Nitrogen

Key Features

• Controlled calibration mixture for compatible gas detectors
• Tests carbon monoxide and oxygen sensors
• Suitable for calibration and functional bump testing
• Helps identify sensor drift or improper detector response
• Supports routine gas-monitor maintenance programs
• Designed for professional industrial safety applications
• Compatible with appropriate regulators, tubing, and calibration adapters

Common Applications

• Carbon monoxide detector calibration
• Oxygen sensor calibration
• Multi-gas monitor bump testing
• Confined-space entry equipment checks
• Industrial safety and maintenance programs
• Utility and wastewater operations
• Manufacturing and processing facilities
• Fire and emergency response equipment maintenance
• Gas detection service and repair
• Occupational safety programs

How to Use

1. Confirm that the detector requires 50 ppm carbon monoxide and 18% oxygen calibration gas.
2. Check the cylinder connection and select a compatible fixed-flow or demand-flow regulator.
3. Connect the regulator to the detector using the appropriate tubing and calibration adapter.
4. Apply the gas according to the instrument manufacturer’s calibration or bump-test procedure.
5. Verify that each sensor responds within the required tolerance and that applicable alarms activate.
6. Close the regulator or cylinder valve and store the calibration gas according to supplier instructions.

Calibration Products for Dependable Gas Detection

Activated Carbon Depot supplies calibration gases and gas-detection accessories for safety managers, service technicians, utilities, industrial facilities, and emergency response teams. Our product selection helps organizations maintain compatible instruments, verify sensor response, and support consistent workplace gas-monitoring procedures.