The Q-Certification verifies the calibration / photometric accuracy of the Chematest under test by comparison with a reference instrument. The comparison is performed for DPD-based ozone determination (DIN 38408-3) at four different ozone concentrations between 0.08 ppm and 3.0 ppm which are simulated by liquid absorbance standards.
The calibration of the reference Chematest is periodically verified with NIST-traceable potassium permanganate standards according to APHA 4500-Cl G (2017) and DIN EN ISO 7393-2.
If you would like to see a Swan Analyzer in person and meet with your local Swan rep, please join us at one of the upcoming conferences.
___________________________
Follow Swan USA on Facebook
Follow Swan USA on LinkedIn
Follow Swan USA on Twitter
Watch Swan Videos on our YouTube Channel
Join our mailing list
View Swan USA Webinars on Go To Stage