John Walker

Blogs by Author
14 Mar 2019
Water Purity, Water In The Lab
USP 643: the Wrong End of the Stick!
John Walker
In this blog we show that TOC of highly purified water (such as ultra-pure), can be determined by internal purification-process monitoring, to ensure that USP/EP standards are met, as well as by using an additional TOC analyser designed to nominally achieve Pharmacopoeia ‘System Suitability’ requirements
USP 643 Toc Measurement Water