ASTM D5094 Gross Leakage with Threaded or Lug-Style Closures

ASTM D5094 demonstrates the integrity of a container with a threaded lid. As an ISTA and ISO 17025 certified lab, we realize the importance of leakage testing. Meeting the ASTM D5094 requirements can be difficult. We understand the challenges and guide companies through the process.

Keystone quickly provides comprehensive and accurate reports shortly after completion of the testing. When packages do not meet the requirements, we assist with finding solutions. Keystone Compliance creates an accurate test plan to eliminate expensive over-testing.

Request a quote to learn why we are one of the fastest growing package test labs in the country. Have a question about containers with threaded or lug-style closures? Contact us and we will determine the best course of action.

Summary of ASTM D5094 Threaded and Lug-Style Container Information

ASTM D5094 is used to indicate the ability of a container to survive the distribution environment without leaking. The leakage of liquids, test method D4094, may not be suitable to determine the leak resistance of containers intended for the transportation of hazardous materials.

Scope of Gross Leak Package Testing

Two test methods can be conducted for ASTM D5095 product certifications. Method A is the shipping container vibration and storage test. Method B is the container vibration and vacuum chamber test.

Method A – Test specimens are filled to their expected capacity with product or liquid. The closure is then applied to the container. Closures should be applied with the same torque as would be encountered in production. The specimens are stored on their sides for four weeks.

At the conclusion of the test, the closure is removed and inspected for signs of leakage or crusting from partial leakage. If there is leakage to the threads but not to the outside, the specimen may or may not be acceptable. This effect is up to the user of this test method. However, it can be used as a comparative evaluation between closures and mold cavities.

Method B – Test specimens are partially filled with product or liquid. Like method A, closures should be applied with the same torque as would be encountered in production. Next, the specimens are packed into shipping containers and vibrated. The specimen is then examined and leak locations are noted.

Following vibration, the specimens are removed and subjected to a -34kPa vacuum for 10 minutes. Lastly, the specimen is removed from the vacuum chamber and examined for leakage, cracks, or other visible damage.

Significance of ASTM D5094 Performance Testing

This ASTM D5094 testing procedure is used to indicate the integrity of the container and closure system in the distribution environment. The ASTM test also measures the ability of the container and closure system to prevent leakage when stored or transported upright, inverted, or on its side.

Leakage testing allows for the comparison of threaded and lug-style closures of similar or different materials, or different manufacturers. The test protocols are suitable for packaging development, engineering, and tooling evaluations.

The containers are conditioned at ambient laboratory conditions for at least 4 hours before testing. However, the torqued container closure specimens are stored upright for 24 hours at ambient conditions before the starting of the test.

The D5094 test report includes specific and general information following the procedures. General information consists of the date, time, location, and test engineer. Specific information may include the temperature and relative humidity of the test area, the description of shipping cycles, and lastly, the variations made in the test.

Expert ASTM Threaded or Lug-Style Closure Package Testing

Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. Our team strives to give our customers more time and energy on product development instead of testing. In addition to gross leakage testing, Keystone has a full scope of expertise including temperature validation, vibration, and high impact shock.

Request a quote to learn first hand why so many companies partner with Keystone to achieve their ASTM packaged products certification needs.