Hazmat Vibration Testing
The test protocol in the United States does not specifically require that the hazardous material packaging be subjected to a vibration test in the laboratory for proper certification. It only requires that the package be “capable of withstanding vibrations” typical of the distribution environment. Westpak recommends that vibration testing be conducted in order to verify the ability of packaging to properly protect the product given that vibration is a certainty in the distribution environment. There are two types of vibration testing that comply with the 49 CFR 179.608 Standard. One type, ASTM D999, utilizes a mechanical vibration test machine with a fixed 1 inch displacement and a circular synchronous motion when viewed from the side.
This procedure is often referred to as a mechanical bounce test in that the package must be allowed to leave the surface of the vibration machine. This is accomplished by increasing the frequency of the rotational motion until the package just leaves the surface of the test machine. The second procedure or type of vibration utilizes electrohydraulic or electrodynamic vibration test equipment with a random vibration profile typical of ASTM D4728 or similar.
Utilizing either procedure, it is important to replicate vibration that occurs in the real world to the product or package system under test in order to witness the effects and identify weaknesses. Vibration occurs on all forms of transportation and at varying levels of intensity. Real world vibration is complex and can intensify the natural frequency responses within a product/package system.
Westpak continually upgrades and expands its equipment line-up. Therefore this list is a minimum of our capabilities:
(3) Horizontal Vibration Tables
Vibration Test Systems with frequency ranges of 1-2000 Hz and load capacities
to 1,500 kg (3,300 lb.)