Westpak is certified to conduct product/package integrity testing to help guarantee successful delivery of products worldwide by any means of transportation.

Westpak is accredited to ISO/IEC 17025-2005, one of the most rigorous standards available for a mechanical testing laboratory.

Westpak is certified to the requirements of ISO 9001-2008 for quality management, and to ISO 14001-2004 for environmental management and sustainability efforts.

Stack Test


One of the primary functions of the container system is to provide the ability to stack the containers during transit or warehousing in a safe manner. The test procedures for Hazmat package testing specifically utilize a common type of dead load stacking in order to more closely simulate the exact distribution or warehouse stacking environment. 

The stack test procedure requires that a dead load be placed on top of the package system that represents approximately 200% of the anticipated load during distribution. It must be a “free load” in order to lean if the stack should start to lean in any one direction. It is also necessary for the stack to maintain this level of top load for a minimum period of 24 hours. Westpak uses only certified loads calibrated yearly for this process.

Typical Procedures/Protocols
49-CFR 178.606
ASTM D642

Westpak Capabilities

Over 2250 Kg (5000 lb.) of calibrated dead load weights
(4) Container Compression Test Machines