by Matthew Gingerell and John A. Jacanin
Volume 7:4, Jul-Aug 2000
“Certified” low-conductivity solutions down to 10 microsiemens/cm are readily available for the calibration of conductivity/resistivity instrumentation. Can these standards be relied upon for accurate and certified calibrations? What are the practical tolerances of these standards? The surprising answers to these questions are valuable to anyone responsible for high-purity water quality. For regulated industries, the ramifications of the findings could mean the difference between being in or out of compliance.
