ASTM D3078: an essential standard for leak testing

6 Jan 2025

Package Leak Detector

What is ASTM D3078?

ASTM D3078 is an internationally recognized standard for assessing the leak-tightness of flexible packaging. This test protocol, often referred to as the “vacuum immersion test”, is used to detect leaks in packaging designed to protect sensitive products. Used in many industries, this standard guarantees the conformity and safety of products throughout their life cycle.

Why is ASTM D3078 important?

In a world where product quality and safety are essential, the application of ASTM D3078 assures manufacturers and distributors that their packaging is hermetically sealed and complies with regulatory requirements. This makes it possible to :

  • Extend product shelf life.
  • Avoid bacterial or chemical contamination.
  • Protect product integrity during transport.
  • Improve customer satisfaction by reducing packaging defects.

Industries covered by ASTM D3078

Many industries use ASTM D3078 to guarantee the quality of their packaged products. Here are the sectors most concerned:

  • Pharmaceutical industry : to check the tightness of blister packs, medical sachets and IV bags.
  • Agri-food : for testing vacuum packaging or protective films for food preservation.
  • Chemical and industrial products : to guarantee the leaktightness of packaging containing sensitive or hazardous substances.
  • Medical devices : to ensure sterile protection of surgical instruments and other medical materials.

How does the ASTM D3078 test work?

Vacuum immersion testing involves immersing the package to be tested in a container filled with water, then applying a vacuum to observe the presence of bubbles indicating a leak. This process makes it possible to :

  1. Identify microscopic defects in the packaging.
  2. Guarantee structural integrity and watertightness.
  3. Comply with quality standards and industry regulations.

ASTM D3078 test procedure, step by step

  1. Fill the transparent vacuum chamber with water.
  2. Submerge the package and keep it fully under water, for example with an immersion presser.
  3. Close the chamber, apply the vacuum level set in your product specification and hold it for the defined time.
  4. Watch the package: a steady stream of bubbles coming from the same point indicates a leak and shows exactly where it is.
  5. Release the vacuum, remove the package and check it for water ingress.

What ASTM D3078 can and cannot detect

ASTM D3078 is a bubble emission test: it works on flexible packages that contain headspace air, such as pouches, sachets, bags and trays. It gives a pass or fail result and locates the leak, but it does not measure a leak rate.

For packages with little or no headspace, or for liquid-filled containers, a dry vacuum test or a methylene blue dye test is often more suitable.

Which equipment for ASTM D3078 testing?

How can ACRN help you?

At ACRN, we offer complete solutions for ASTM D3078-compliant testing. Our equipment enables fast, accurate analysis of package tightness, whether for small production runs or high-volume testing.

By choosing our equipment, you benefit from :

  • Advanced technology : for reliable, reproducible tests.
  • Tailor-made support : our experts will guide you in your choice of equipment and implementation of procedures.
  • Responsive technical support : to ensure optimum use of your equipment.

Integration with our other solutions

Our equipment can be combined with other test equipment available from ACRN, enabling you to create a complete, high-performance test chain. Discover our range of vacuum leak tester : immersion testers, dry testers and methylene blue testers.

Do you want to guarantee the conformity of your products and promote your expertise?

Contact us today to find out more about our ASTM D3078-compliant solutions and get a customized quote.