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.

Shock Testing


Mechanical shock has the potential for producing adverse effects on the physical and functional integrity of all material. In general, the level is affected by both the magnitude and the duration of the shock environment. Durations of shock that correspond with natural frequency periods of the material and/or periods of major components will magnify the adverse effects on the material's overall physical and functional integrity. (Source: MIL-STD-810G)

Typical Procedures/Protocols
MIL-STD-810G

The military environment is full of severe stresses
that must be accounted for to assure performance
you can count on.

Shock tests are performed to:

  • Provide a degree of confidence that material can physically and functionally withstand the relatively infrequent, non-repetitive shocks encountered in handling, transportation, and service environments. This may include an assessment of the overall material system integrity for safety purposes in any one or all of the handling, transportation, and service environments;
  • Determine the material's fragility level, in order that packaging may be designed to protect the material's physical and functional integrity; and
  • Test the strength of devices that attach material to dynamic platforms.

Shock testing can identify failures as:

  • Material failure as a result of increased or decreased friction between parts, or general interference between parts
  • changes in material dielectric strength, loss of insulation resistance, variations in magnetic and electrostatic field strength
  • Material electronic circuit card malfunction, electronic circuit card damage, and electronic connector failure
  • permanent mechanical deformation of the material as a result of overstress material structural and non-structural members
  • Collapse of mechanical elements of the material as a result of the ultimate strength of the component being exceeded
  • Accelerated fatiguing of materials (low cycle fatigue)
  • Material failure as a result of cracks in fracturing crystals, ceramics, epoxies, or glass envelopes

Westpak Capabilities

Westpak continually upgrades and expands its equipment line-up. Therefore this list is a minimum of our capabilities:

(8) Vertical Shock Test machines with acceleration levels to 50,000 G’s
(2) Horizontal Shock Test Machines
(1) Rotary Shock Tester
(100+) channels of shock test instrumentation(8) Programmable Mechanical Shock Test Machines