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ASTM D5265 Bridge Impact Testing

ASTM D5265 determines the capability of a long package to resist impact near its center. As an ISTA and ISO 17025 certified lab, we realize the importance of bridge impact testing. Meeting the ASTM D5265 requirements can be difficult. We understand the challenges and guide companies through the process. 

Keystone provides the peace of mind that all of your needs will be met. We are in constant communication throughout the test process. We provide quick and accurate comprehensive reports shortly after the completion of the testing.

Request a quote to learn why we are one of the fastest growing package test labs in the country. Have a question about simulated mechanical impact testing equipment (S.M.I.T.E.)? Contact us and we will determine the best course of action.

Summary of ASTM D5265 Impact Testing Information

ASTM D5265 is intended for long packages to resist impact near its center. This is used when the package is supported only at its ends. The two optional procedures are designed to impart the same amount of kinetic energy at impact. Therefore, each procedure yields equal damage-producing potential.

Scope of ASTM D5265 Bridge Impact Testing

This ASTM test method allows the user to select from two options. Option A employs the use of a free-fall drop tester. Option B employs the use of simulated mechanical impact testing equipment.

The procedure for option A includes the package placed on the test floor of the drop test apparatus. The support blocks are placed parallel to each other and perpendicular to the long axis of the package. The impactor is positioned on the drop table. It must be noted that the edge of the impactor should strike the package so that the plane containing this edge makes no more than a 5-degree angle.

The bottom edge of the impactor is the required drop height above the upper surface of the package being tested. Lastly, the impactor is then dropped on the package’s narrow cross-section to produce a specified impact velocity.

Option B places the package to be tested on the table of the simulated mechanical impact testing equipment (S.M.I.T.E.) test apparatus. The support blocks are placed parallel to each other and perpendicular to the long axis of the package. The impactor is positioned so that it will strike the package with a long edge. The impactor is also positioned so that the midpoint of the bottom edge strikes the midpoint of the package being tested.

Lastly, the impactor is dropped from a machine height to generate a specific impact velocity. If no impact velocity is specified, use 48 in/s.

Significance of ASTM D5265 Bridge Testing

The materials shipped in elongated packages are liable to negative effects. This damage results from impact near their midpoint when only the ends are supported. This type of damage occurs during the shipment of packing mixed dimensions. The test method provides a means of determining the cross section to resist impacts.

The test specimens and the number of samples are chosen to permit an adequate determination of representative performance. For large production runs, lot sampling in accordance with ASTM E122 is advised.

It is preferable to pack the package with the actual or load simulating contents. Depending on the purpose of the test, packages are conditioned prior to the bridge impact test. Unless otherwise specified, fiberboard packages are conditioned in accordance with ASTM Method D685 or ASTM Method D4332.

The information included in the test report may consist of general or specific information about the method or conditions. Furthermore, the report may include information such as:

  • Mass of the impactor
  • Method of conditioning the container
  • Drop height
  • Description of the contents of the container being tested
  • Dimensions of the package under testing

Expert ASTM D5265 Package Testing

In addition to bridge impact testing, Keystone has a full scope of expertise including accelerated aging, high impact shock, and leak penetration. Our team 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.

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