RKI Instruments 81-0072RK Carbon Dioxide Calibration Gas - 2.5% vol. (CO2)

By RKI Instruments Equivalent


Balance Gas: Nitrogen

Size: 17L


  • RKI Instruments equivalent 2.5% vol. Carbon Dioxide (CO2) span gas cylinder used to calibrate RKI gas detection equipment with carbon dioxide gas sensors.
  • Fully compatible with RKI Instruments gas detectors requiring 2.5% vol. carbon dioxide with balance nitrogen.
  • Precision blended and inspected to industry standards - National Institute of Standards and Technology (NIST) traceable and certified.
  • Made in the USA by GASCO, ISO 9001:2008 Certified.

Contact us for custom carbon dioxide calibration gas mixtures.

Subject to hazardous materials shipping requirements.

Technical Specs

Target Gas: Carbon Dioxide (CO2)
Concentration: 2.5% by volume
Balance Gas: Nitrogen
Gas Type: Non-Reactive
Cylinder Size: 17L
Part Numbers:
RKI Part Number: 81-0072RK
GASCO Part Number: 17L-35-2.5
Manufactured by: Gasco Affiliates, LLC
Shelf Life: 48 Months
Regulator Compatibility: CGA 600 valve inlet.

Control Valve (CV-2)
Fixed Flow (70 Series)
Demand Flow (75-DFR)
Dial-a-Flow (74-DAF)
Fixed Flow Push Button (73-PBR)
Trigger Control Fixed Flow (70-Trigger)
Flow Matching Valve (72-MFV)

Tubing Compatibility: Tygon® Tubing

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