Hi everybody
This comunity is a great source of knowledge and I hope you guys could help me.
We have a CO2 gas anayzer and I'd like to now how often do I have to calibrate it
This analyzer reaches a zero drift equal to 5% of the SPAN in 15 days. The range of this analyzer is 0-500 ppb
I'd like to know if there is any international protocol (ISA, ISO) for zero drift limits for CO2 gas analyzers.
Thanks in advance
Diego