MSA 459945 Methane 40% LEL Calibration Gas - 2% vol. (CH4)

By MSA Equivalent


Balance Gas: Air

Size: 17L


  • MSA equivalent 2% vol. Methane 40% Lel (CH4) span gas cylinder used to calibrate MSA gas detection equipment with methane 40% lel gas sensors.
  • Fully compatible with MSA gas detectors requiring 2% vol. methane 40% lel with balance air.
  • 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 40% lel calibration gas mixtures.

Subject to hazardous materials shipping requirements.

Technical Specs

Target Gas: Methane 40% Lel (CH4)
Concentration: 2% by volume
Balance Gas: Air
Gas Type: Non-Reactive
Cylinder Size: 17L
Part Numbers:
MSA Part Number: 459945
GASCO Part Number: 17L-135A-2
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

Tags: Methane, MSA
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