Why are TOC measurements used?
Generally organic contaminants are non-ionic and as such are not detected by standard conductivity measurements. Therefore, high resistivity (low conductivity) measurements in an ultrapure water system may not detect high levels of TOC from high levels of contamination. High levels of TOC can: • Degrade water purification systems. • Reduce semiconductor yields. • Contaminate pharmaceutical batches. • Damage power and steam generation equipment. TOC is used to monitor both the quality and equipment efficiency of many water purification processes.
