Trying to covert %mol/mol into ppm

[ifancho]

Hello everyone.
I'm trying to calibrate an Oxymeter with span gas cylinder. The meter requires ppms but on the cylinder I have %mol/mol.




It's a 20l container with nitrigen ballance.

[ifancho]

[ifancho]

[gubment_cheez]

Re: Mol% to ppm conversion



For gases, ppm is by molar ratio, micromoles per mol (µmol/mol). Since percents are parts per hundred, just multiply by 10000
100 mol% = 1 million ppm (the whole thing)
1 mol% = 10000 ppm

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[ifancho]

I was thinking is 4016ppms but is this applied for 1l or for my 20liters for 150bar pressure? The other thing is that when I start the span gas flow thru the Oxymeter shows only 10ppms

[gubment_cheez]

This could be due to several reasons such as incorrect calibration of the oximeter, low battery level, incorrect placement of the sensor, or a malfunctioning sensor. You can try recalibrating your oximeter and checking if it’s placed correctly. If that doesn’t work, you may need to contact the manufacturer or a professional technician for assistance.