A swabstick looks simple, but its performance rests on a chain of controls that runs from raw material to final release. This series walks through that chain the way our own quality system does — one link at a time. Start with Chapter 1 for the big picture, then follow the chapters in order or jump to the topic you need.
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1The Critical Quality Attributes of a Povidone-Iodine SwabstickAvailable iodine, pH, fluid content, seal integrity and stability — and why they stand or fall together.
2Why 4.5–5.5 g/L Available Iodine — and How We Keep It ThereAvailable iodine is what kills. Why the band is 4.5–5.5 g/L, and how compounding and in-process checks hold it in spec.
3Proven to Kill: Bactericidal Efficacy ValidationKill-log targets, test organisms and contact times that prove the swabstick actually works.
4From Degreased Cotton to Pharmaceutical-Grade Povidone-Iodine: Material ControlIncoming specs, supplier qualification, heavy-metal limits and why we screen for optical brighteners.
5Inside Our Production ProcessWater, iodine compounding, stick and cotton head, impregnation, sealing and leak testing — step by step.
63-Tier Inspection & Batch ReleaseIncoming, in-process and finished-lot testing, COA per lot, and a controlled release.
7Seal Integrity & 36-Month StabilitySeal-integrity testing, light-proof barrier film, and why available iodine must still hold at 36 months.
8Traceability, Calibration & ComplianceBatch records from raw-material lot to shipment, calibrated instruments, and the ISO 13485 backbone.