Evaluation of microbiological purified water trend using two types of control chart
The microbial population in water is dynamic and may change not only from day to day but also at different times of the day. Researchers have observed that this microbiological distribution usually follows the Poisson or Negative Binomial model.1
Data trending regarding the microbiological density of water provides a comprehensive and informative means of assessing the quality, stability and safety of the microbial community in water. Statistical process control (SPC) provides a useful tool to address these items quantitatively, which could be integrated with quantitative risk assessment tools.
The rest of this content is restricted - login or subscribe free to access
Thank you for visiting our website. To access this content in full you'll need to login. It's completely free to subscribe, and in less than a minute you can continue reading. If you've already subscribed, great - just login.
Why subscribe? Join our growing community of thousands of industry professionals and gain access to:
- bi-monthly issues in print and/or digital format
- case studies, whitepapers, webinars and industry-leading content
- breaking news and features
- our extensive online archive of thousands of articles and years of past issues
- ...And it's all free!