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Shock Testing

ASTM D4168 Foam-in-Place Package Testing

ASTM D4168 determines the shock absorbing characteristics of packages. As an ISTA and ISO 17025 certified lab, we realize the importance of ASTM D4168 foam-in-cushioning package testing. Meeting the ASTM D4168 requirements can be difficult. We understand the challenges and guide companies through the process. 

Keystone takes a consultative approach throughout the entire test program. We have a reputation of helping customers achieve their package certifications. Our pricing is competitive and we offer volume discounts. Lastly, Keystone Compliance creates an accurate test plan to eliminate expensive over-testing.

Request a quote and find out first hand about our competitive pricing, timely process, and outstanding reputation. Contact us to receive more information on ASTM D4168 testing.

Summary of ASTM D4168 Transmitted Shock Characteristics of Foam-in-Place Cushioning Materials

The scope of the ASTM D4168 package test determines the shock-absorbing characteristics of foam-in-place packaging materials. There are two test methods in ASTM D4168 testing. Test Method A uses a free-fall package drop test apparatus. Test Method B uses a shock-test apparatus.

The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Scope of ASTM Transmitted Shock Testing

ASTM D4168 package integrity testing consists of using the cushioning material to be tested to support a weighted test block inside a package. The complete package is subjected to drops or controlled shocks and the accelerations transmitted to the test block are measured. Either Test Method A or B may be used. However, the two ASTM D4168 methods will not necessarily give the same result.

Data obtained by these methods is used to determine the transmitted shock cushioning characteristics of foam-in-place packaging materials. The data allows the design of cushioning systems that can provide adequate and efficient use of foam for protection of goods during a distribution i.e. transportation life-cycle.

The two vibration integrity methods, in contrast to other methods that usually test only the cushioning foam, are designed to evaluate foam-in-place cushioning materials in a manner in which the foam-in-place packaging material is used. In particular, the method includes simultaneous use of a plastic film, the foam, and the box usually used in this method of packaging.

Test Method A: The free-fall drop. This test must conform to Method 5276

Test Method B: The shock test. This test must conform to Method 5487

Expert ASTM D4168 Package Testing

Keystone Compliance strives to give our customers more time and energy on product development instead of testing. We can accommodate flexible and rigid packages of all sizes, including large pallets. In addition to ASTM D4168 foam-in-cushion package testing, Keystone has a full scope of expertise including vibration, high impact shock, and sterile barrier.

Contact us to learn first hand why so many companies partner with Keystone to achieve their ASTM D4168 certification needs.