I see that for an OCLT the overnight FC loss should be 1.0ppm or less. However, when doing a SLAM with FC in the ~20-25ppm range, how accurate is the FAS-DPD testing? I read that it is +/- 10% accurate. Accurate enough for the lower FC levels, but at 25ppm that can be +/- 2.5ppm. Therefore, the testing accuracy is less than what the OCLT test requires. Any thoughts?
I've seen some info on this, but nothing definitive.
Thanks
I've seen some info on this, but nothing definitive.
Thanks