William A. Hess, CAPT (ret.) U.S. Public Health Service

icon company U.S. Food and Drug Administration icon location Silver Spring, MD 20993 icon location Please see linkedin.com/in/chess1

Results 15 comments of William A. Hess, CAPT (ret.) U.S. Public Health Service

half maximal inhibitory concentration

Tim, This one has the same type of issues as #209. I don't have any record of the UCUM Advisory Board already discussing this, but it is possible that we...

Request for an unit: 50% Chicken Infective Dose

**Here is ChatGPT 5.0's analysis:** Short answer: this is a reasonable and defensible addition to UCUM as an **arbitrary infectivity unit**, provided it is named and scoped unambiguously and follows...

Create a showcase of UCUM implementations

Requested of ChatGPT o3: Please provide a list of all websites (domestically and internationally) that have implemented a Unified Code for Units of Measure (UCUM) interface and validation tool. ChatGPT...

Request for: New Units of Measure to be used by NSWHP

Here is ChatGPT's analysis of this request: Subject: Review of UCUM Application NSWHP.xlsx – Proposed Units for Pathology and Cellular Therapy 1. OverviewNew South Wales Health Pathology (NSWHP) has proposed...

Request for: Mc Farland standards

Me: The UCUM Board added "Nephelometric Turbidity Unit" and "Formazin Turbidity Unit" as units of measure to UCUM in 2024. How would this information influence the pros and cons of...