Audit Trails for Consumables: What Inspectors Actually Ask
The question is rarely "do you have a certificate". It is "show me how you know this lot is the same product you qualified".
How to Read a Certificate of Analysis
A CoA is not a certificate of quality. It is a table of tests, methods and results for one lot, and it is only useful if you can match it…
Swab or Rinse: Choosing a Recovery Method
Both methods measure residue. They disagree because they sample different surfaces, different areas and different chemistry, and the choice…
Fill-Finish: The Wipe at the Intervention Point
The wipe used during an aseptic intervention is part of the intervention. It has to be sterile, controllable with one hand and documented…
Annex 1 2022: What Changed for Consumables
The revised Annex 1 put contamination control strategy at the centre. For consumables, that means the supplier's evidence is now part of…
Cleanroom Wipes in Medical Device Assembly: Three Failure Modes
Most wipe-related defects in device assembly are not particle counts. They are a film on a passivated surface, a fibre in a seal, and a…
ISO 14644-1:2015 in Practice: What Grade B Actually Requires
A Grade B room is ISO 5 at rest and ISO 7 in operation. That sentence hides the sampling plan, the particle counts and the consumables…