Gowning Economics: How Often Gloves and Masks Should Change
Change frequency is usually set by habit, not by data. A simple way to model contamination risk against consumable cost and gowning time…
Reading a Wiper Test Report: Extractables, Lint and Weak Data
A test report is only as useful as its method, sample preparation and detection limit. How to read the three sections that decide whether…
Wiping in Grade B: Residue, Rotation and the Limits of Disinfectants
Disinfectant rotation is a strategy, not a cleaning method. In Grade B, the wipe has to remove what the agent leaves behind. A practical…
IPA Compatibility: What Solvent Wiping Does to the Wiper
Isopropyl alcohol is treated as a default cleaner. It is also a solvent with real effects on fibre, binder and edge finish. What changes…
Where Cleanroom Wipes Actually Fail: Four Transfer Routes
A wiper that passes a particle count can still put particles on your product. The difference is how it is used. Four transfer routes, and…
Cleanroom Wiper Selection: A Spec-First Framework
Most wiper decisions start with a catalogue page. They should start with four numbers: the surface, the solvent, the class and the disposal…