GASCO Calibration Gas: Air, +/-2% Accuracy, C4H8, Calibration Gas, 105 L Cylinder Capacity
The GASCO Calibration Gas: Air (SKU 408A96, MPN 105ES-78A-990) is a +/-2% accuracy calibration gas cylinder containing a mixture of Refrigerant R-11 at 990 ppm in an air background, with a 105 L capacity. Designed…
SKU 3G-OTH-550252
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Product Description
The GASCO Calibration Gas: Air (SKU 408A96, MPN 105ES-78A-990) is a +/-2% accuracy calibration gas cylinder containing a mixture of Refrigerant R-11 at 990 ppm in an air background, with a 105 L capacity. Designed for use with all OEM gas detectors, it provides a verified reference for sensor calibration across 14 industrial departments — and we supply far more than is listed. Our specialist depth in combustion, pumps and controls (as an authorised distributor for brands like FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo, and Fluke) ensures you get the right answer, not just a catalog.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is GASCO calibration gas 105ES-78A-990 used for?
This GASCO calibration gas cylinder is used to verify and calibrate all OEM gas detectors across industrial environments. It provides a known concentration of Refrigerant R-11 at 990 ppm in air, ensuring accurate sensor response for safety compliance in facilities handling refrigeration systems.
What are the specifications of GASCO 105ES-78A-990?
The GASCO 105ES-78A-990 is a +/-2% accuracy calibration gas cylinder with a 105 L capacity. The gas mixture is Refrigerant R-11 at 990 ppm in an air background. It is designed for use with all OEM gas detectors and carries the manufacturer part number 105ES-78A-990.
Where to buy GASCO calibration gas 105ES-78A-990 worldwide?
3G Electric supplies GASCO calibration gas 105ES-78A-990 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this calibration gas cylinder.
How to use GASCO calibration gas cylinder 105ES-78A-990?
Attach the cylinder to your gas detector's regulator, then open the valve to release the certified gas mixture at the recommended flow rate. Allow the sensor to stabilise before adjusting calibration settings. Always follow the detector manufacturer's instructions and dispose of cylinders per local regulations.
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.









