Standard gas cylinder for MSA gas detector Calgaz 2AL H2S/CO/CH4/O2 A0431288


Gas composition: 20PPM H2S 60PPM CO 1.45% CH4 15% O2, Balance N2 (34 L), Standard
Product line: Calgaz standard gas cylinder

Cylinder model 2AL
Material: Aluminum
Suitable regulator: Model 715, DFR 2000 Series, 4000 Series “Trigger”
SDS#: 50018
Orderd code (PN): A0431288
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Available on backorder

SKU: CG-A0431288 Category: Tags: ,


  • Composition gas: Methane, Oxygen, Cacbon monoxit, Hydro sulfua  commonly used for the calibration of basic 4-gas detectors. Theoretically, the recommended reference gas concentration reaches 50% of the sensing range. However, in fact, based on the measuring range, the type of gas (the level of toxicity), the popularity and important is the measurement characteristic of the sensor. Then, each manufacturer recommends what concentration to use to calibrate their gas detectors. The type of 4-component gas mixture cylinder commonly used to calibrate the following gas detectors:
  • Calibrate  the Qrae II gas detector
  • Calibrate  the Max XT II gas detector
  • Calibrate  the GasAlertMicroClip gas detector
  • Calibrate  the Crowcon T4, Tetra 3 gas detector
  • Calibrate  the X-am 2500 gas detector
  • Calibrate  the Ventis MX4 gas detector
  • And calibrate the Altair 4X gas detector



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