RKI Instruments 81-0094RK Isobutane 50% LEL Calibration Gas - 0.9% vol. (C4H10)

By RKI Instruments Equivalent



  • RKI Instruments equivalent 0.9% vol. Isobutane 50% LEL (C4H10) span gas cylinder used to calibrate RKI gas detection equipment with isobutane 50% lel gas sensors.
  • Fully compatible with RKI Instruments gas detectors requiring 0.9% vol. isobutane 50% lel with balance 12% o2 in 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 isobutane 50% lel calibration gas mixtures.

Subject to hazardous materials shipping requirements.

Technical Specs

Target Gas: Isobutane 50% LEL (C4H10)
Concentration: 0.9% by volume
Balance Gas: 12% O2 In Nitrogen
Gas Type: Non-Reactive
Cylinder Size: 17L
Part Numbers:
RKI Part Number: 81-0094RK
GASCO Part Number: 17L-18N-0.9-12O2
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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