Pda Technical Report 27 Pdf |top| -

PDA Technical Report No. 27 (TR 27), "Pharmaceutical Package Integrity," is a 1998 guidance document that outlines strategies for assessing the container closure integrity (CCI) of pharmaceutical packaging. It emphasizes protecting sterile products by setting standards for microbial barriers, though it is being superseded by newer guidelines such as TR 86. The report is available for purchase on the PDA Bookstore. Technical Report No. 27: Pharmaceutical Package Integrity

• Dye Ingress (Methylene Blue, Toluidine Blue) – Common but qualitative; sensitivity ~5–10 μm.
• Microbial Immersion Challenge – Gold standard for correlating leak size to sterility, but destructive and low throughput.

4.3 Deterministic vs. Probabilistic Leak Test Methods pda technical report 27 pdf

3. The Push for Instrumentation

The report champions the use of instrumentation to detect leaks physically rather than biologically or chemically. It evaluates methods like: PDA Technical Report No

6. Connection to Regulatory Expectations

TR 27 has been widely referenced by global health authorities: Dye Ingress (Methylene Blue, Toluidine Blue) – Common

Leak Test Methods: Technical details on specific testing procedures. Accessing the Full Document

• Subjective (rely on human observation).
• Variable (results can change based on pressure, time, and technician).
• Destructive (the sample is ruined during testing).
• Low sensitivity (they often miss very small leaks).

C. Routine Manufacturing

• Non-destructive, 100% testing – Preferred for high-risk products (e.g., prefilled syringes using HVLD).
• Sampling-based testing – For less critical products or when 100% testing is impractical.
• In-line or at-line testing immediately after sealing.