Measuring And Monitoring Environmental Surface Residues

Dr. Mark Wiencek, Principal Microbiologist at Contec Inc., delves into the benefits and obstacles associated with various techniques for assessing and validating surface residues. He explores methods such as visual inspection and Total Organic Carbon (TOC) sampling to highlight their respective advantages and challenges. Visual inspection is a straightforward and immediate method for detecting surface residues. It allows for the quick identification of visible contaminants, making it a practical choice for routine checks. On the other hand, TOC sampling offers a more comprehensive approach by measuring the total amount of organic carbon present on a surface. This method can detect residues that are not visible to the naked eye, which provides a more thorough validation.