RKI Instruments 81-0013RK-05 Methane 50% LEL Calibration Gas - 2.5% vol. (CH4)

By RKI Instruments Equivalent


Balance Gas: Nitrogen

Size: 58L


  • RKI Instruments equivalent 2.5% vol. Methane 50% LEL (CH4) span gas cylinder used to calibrate RKI gas detection equipment with methane 50% lel gas sensors.
  • Fully compatible with RKI Instruments gas detectors requiring 2.5% vol. methane 50% lel 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 methane 50% lel calibration gas mixtures.

Subject to hazardous materials shipping requirements.

Technical Specs

Target Gas: Methane 50% LEL (CH4)
Concentration: 2.5% by volume
Balance Gas: Nitrogen
Gas Type: Non-Reactive
Cylinder Size: 58L
Part Numbers:
RKI Part Number: 81-0013RK-05
GASCO Part Number: 58L-135N-2.5
Manufactured by: Gasco Affiliates, LLC
Shelf Life: 48 Months
Regulator Compatibility: Valve Inlet: C-10
Stainless steel regulator required due to reactive nature of gas.
Fixed Flow Stainless Steel (70/SS Series)
Tubing Compatibility: Tygon® Tubing

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