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TR 1999/022: 4432/50 Long-Term Compatibility with WFI

This report reviews compatibility of 4432/50 with WFI under test conditions and supports usage as a vial closure and prefilled syringe plunger.
The WFI Study Protocol was established to determine if West formulation 4432/50 Gray is suitable for use in WFI applications. Suitability was determined through analyses outlined in the USP and EP for WFI packaging.

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