Residual Seal Force Analysis
Method Introduction
Residual seal force (RSF) analysis is a non-destructive technique for the determination of the force by which the rubber stopper on a vial is braced by the vial cap.
The RSF is determined by using a material testing system that applies an increasing force onto the top of the vial cap, measuring the point when the cap flanks lift off the lower vial neck. This force is an indicative parameter for the container closure integrity. Acceptance criteria of the RSF value, however, need to be established in correlation to other container closure integrity tests (CCITs), such as dye-based assays and headspace oxygen analysis (HOA).
Applications
RSF analysis is used during process development, during stability studies as well as for lot release testing.
Quality and Biosafety Level
We provide all our analytical services with the highest quality standards. Experienced scientists carry out each project, and a scientific reviewer comprehensively checks every report or data presentation.
We offer this technology with the following quality and biosafety levels:
R&D level
We offer this method under R&D. Our GRP system assures the highest-quality research standards.
Up to biosafety level 1
This method can be applied to proteins, nucleic acids, and most viral vectors, including AAVs and more.
Analytical Method Development, Qualification and Validation
For common sample types, we can often apply standardized methods with little setup effort. However, when needed, our experienced analytical experts create or optimize custom methods tailored to your active pharmaceutical ingredient, product type and development phase.
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