What is vacuum decay testing?
Vacuum decay testing detects leaks by placing a product under vacuum and measuring pressure changes over time.
How it works
- Product is placed in a sealed chamber
- Vacuum is applied
- System stabilizes
- Pressure increase is measured
If air enters the system, it indicates a leak.
Why use vacuum decay testing
Vacuum decay is used when:
- Products cannot withstand internal pressure
- External pressure testing is preferred
- High sensitivity is required
Applications
Typical use cases include:
- Flexible packaging
- Blister packs
- Sterile medical packaging
- Low-pressure components
Advantages
- High sensitivity
- Non-destructive
- Suitable for fragile products
- Effective for packaging integrity testing