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H2S Gas Detector
H2S detector for the range of the detector is 0 -100 ppm


Have a h2s detector for the range of the detector is 0 -100ppm.

What will be the calibration gas cylinder type is it 50 ppm or 100ppm I need to use to calibrate the h2s detector?

And what will be the procedure to be followed?


One would guess you could use both gas cylinders to compare results.
However it would appear prudent to follow the Manufacturer's calibration procedures to ensure they are valid.