ASTM F1886 Integrity of Seals for Flexible Packaging

ASTM F1886 determines channels in the package seal by visual inspection. As an ISTA and ISO 17025 certified lab, we realize the importance of flexible package testing. Meeting the ASTM F1886 requirements can be difficult. We understand the challenges and guide companies through the process.

Keystone Package Testing partners with customers to achieve package compliance.

Our pricing is competitive and we offer volume discounts. Keystone provides constant communication throughout the test process for peace of mind that all of your needs will be met.

Request a quote to see why so many companies partner with Keystone Package Testing. Contact us to receive more information on integrity package testing.

Summary of ASTM F1886 Integrity Testing of Channels

The ability to detect channel defects in sealed and unsealed areas is highly dependent on the size of the channel. The degree of contrast between the sealed and unsealed channels and type of adhesive between the two package layers are also dependent on detecting seals. Lastly, types of materials used and the inspectors training level and experience can help detect leaks as well.

Scope of ASTM F1886 Integrity of Seals by Visual Inspection Testing

This test method provides a qualitative visual inspection to evaluate the appearance of unopened, intact seals. This will determine the presence of defects that may affect the integrity of the package.

Visual acuity is performed at a distance of 30 to 45 cm. The seal is then inspected for completeness and uniformity. Different package sizes and shapes may require differing lengths of time to inspect the entire seal parameter.

Some packaging materials may fluoresce under ultraviolet light. Viewing the seal in a UV light box allows for a complete inspection. The location of the where channels appear are identified and recorded.

Significance of ASTM Visual Inspection Package Testing

Seal attributes can be linked directly to a number of variables. These variables include process parameters, equipment or materials, as well as environments. Visual seal characteristics and defects can provide evidence of package integrity and sealing problems.

Visual seal defects will often be the first indication of heat sealing process variation. They will also indicate a lack of package integrity after physical package performance testing.

The results of this study are pass or fail. Therefore, the data is binomial with an expected average of np and an expected variance of npq. N is the number of samples. P is the probability of an incorrect evaluation. Q is the probability of a correct evaluation.

Expert ASTM F1886 Integrity Package Testing

Keystone has a full scope of expertise including vibration, accelerated aging, and cold chain. We can accommodate flexible and rigid packages of all sizes, including large pallets. Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling.

Contact us to learn first hand why so many companies partner with Keystone to achieve their flexible package certification needs.


For more referenced ASTM standards and similar testing, please follow the links below:

  • ASTM F17 Terminology Relating to Flexible Barrier Packaging