EU GMP Annex 1 Compliant Inspection of BFS Bottles

WHAT IS EU GMP ANNEX 1?

EU GMP Annex 1, issued by the European Medicines Agency (EMA), regulates the manufacture of sterile medicinal products. The latest revision (2022) became mandatory on 25 August 2023.

This regulation directly impacts blow-fill-seal (BFS) bottles, especially those sealed by fusion, requiring stricter quality and integrity controls.

ANNEX 1 REQUIREMENTS FOR BFS BOTTLES

Under EU GMP Annex 1, containers closed by fusion, such as BFS bottles, must undergo:

• 100% Container Closure Integrity Testing (CCIT)
• Testing using a validated and reliable method

The final regulation specifies:

• Applicability to containers up to 100 mL (SVP – Small Volume Parenterals)
• Inclusion of BFS units (with some interpretation regarding volume limits)

These requirements make CCIT for BFS bottles a critical compliance factor.

WHY CCIT IS CRITICAL FOR BFS BOTTLE INSPECTION

BFS technology ensures sterile production, but post-fill risks still exist, especially after sterilization.

CHALLENGES IN BFS BOTTLE INTERGRITY

• Autoclave sterilization (≥121°C, up to 2 bar pressure)
• Shape deformation after sterilization
• Variability between “as-designed” and final bottle shape

These factors make accurate leak detection in BFS bottles more complex and essential.

HIGH-PRECISION BFS BOTTLE LEAK TESTING APPROACH 

Choosing the right inspection technology is key to meeting Annex 1 requirements.

The WILCO LFC method® provides:

• High measurement accuracy
• Full-container testing in a single cycle
• Reliable detection of micro-leaks

This makes it highly suitable for EU GMP Annex 1 BFS bottle inspection compliance.

RELIABLE 100% LEAK DETECTION SOLUTION

The R DPPB leak tester is designed to handle real-world BFS challenges:

• Compensates for shape variations after sterilization
• Ensures stable transport through testing chambers
• Supports 100% inline inspection

Using deep vacuum technology, the system achieves:

• Extreme sensitivity
• Detection of leaks in both filled and headspace areas

ADVANCED TECHNOLOGY FOR BFS INSPECTION

WILCO’s proprietary differential pressure inspection technology enables:

• Testing of the entire BFS bottle in one pass
• Consistent results across various bottle sizes and formats
• Integration with MAVIS™ HMI for ease of use

This ensures efficient, compliant, and scalable BFS inspection processes.

BENEFITS OF BFS BOTTLE INSPECTION SOLUTIONS

Key advantages of advanced CCIT systems include:

• High sensitivity with LFC method®
• Full bottle inspection in a single test
• Compatibility with multiple shapes and sizes
• Non-destructive, deterministic testing (USP <1207>)
• Suitable for oily and non-conductive liquids
• Effective for low fill volumes

MELCHERS VIETNAM: YOUR LOCAL PARTNER FOR ANNEX 1 COMPLIANCE

Melchers Vietnam is a trusted partner for pharmaceutical manufacturers, providing advanced inspection and quality control solutions aligned with EU GMP Annex 1.

Through its partnership with leading global technology providers like WILCO, Melchers Vietnam delivers:

• State-of-the-art CCIT systems for BFS bottles
• Local technical support and consultation
• Integration support for fill-finish production lines
• Solutions tailored to Vietnam and Southeast Asia regulatory environments

With deep industry expertise, Melchers Vietnam helps manufacturers accelerate compliance while maintaining operational efficiency.

CONCLUSION: ACHIEVING EU GMP ANNEX 1 COMPLIANCE 

To comply with EU GMP Annex 1, pharmaceutical manufacturers must implement robust 100% CCIT for BFS bottles.

With advanced technologies and strong local support from Melchers Vietnam, companies can ensure:

• Regulatory compliance
• Product sterility
• Patient safety
• Long-term operational efficiency