GASCO Calibration Gas: Air, +/-2% Accuracy, C4H8, Calibration Gas, 105 L Cylinder Capacity
The GASCO Calibration Gas: Air (SKU 408A90, MPN 105ES-77A-500) is a +/-2% accuracy calibration gas cylinder containing a mixture of Refrigerant R-22 at 500 ppm in an air background, with a 105 L capacity. Designed…
SKU 3G-OTH-551201
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Product Description
The GASCO Calibration Gas: Air (SKU 408A90, MPN 105ES-77A-500) is a +/-2% accuracy calibration gas cylinder containing a mixture of Refrigerant R-22 at 500 ppm in an air background, with a 105 L capacity. Designed for use with all OEM gas detectors, this cylinder enables field verification of refrigerant sensors. 3G Electric interprets this demand and delivers the exact GASCO cylinder, backed by specialist expertise across 14 industrial departments — including combustion, pumps, and controls — to ensure you get the right calibration gas for your detection equipment.
Frequently Asked Questions
What is GASCO calibration gas used for?
GASCO calibration gas is used to verify and calibrate refrigerant sensors in OEM gas detectors. This cylinder contains Refrigerant R-22 at 500 ppm in an air background, enabling accurate field testing of detection equipment across industrial facilities.
What are the specifications of GASCO calibration gas 105ES-77A-500?
The GASCO 105ES-77A-500 calibration gas cylinder has +/-2% accuracy, a 105 L capacity, and contains Refrigerant R-22 at 500 ppm in an air background. It is designed for use with all OEM gas detectors for refrigerant sensor verification.
Where to buy GASCO calibration gas worldwide?
3G Electric supplies GASCO calibration gas worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source the exact cylinder you need and deliver it to your facility, backed by specialist expertise across 14 industrial departments.
How to use GASCO calibration gas for detector calibration?
Attach the GASCO cylinder to your gas detector's regulator, open the valve, and expose the sensor to the flow. Allow readings to stabilize, then adjust the detector to match the certified concentration of 500 ppm R-22. Always follow the detector manufacturer's calibration procedure.
GASCO Products
3G Electric supplies GASCO calibration gases for portable gas detectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









