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ASTM D4728 Shipping Container Vibration Testing
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- Test Overview
- ASTM D4728 simulates random vibrations of filled shipping units
- Test assesses container's ruggedness and cargo protection
- Random vibration testing minimizes fatigue damage compared to other methods
- Testing should be based on field data for accurate representation
- Testing Requirements
- Requires vibration test system, electronic controls, and closed-loop equalization
- Instrumentation must be accurate +/- 5% across specified frequency range
- Container must be secured to table with 10mm movement capability
- Test starts below desired PSD and increases until desired level reached
- Testing Process
- Conditioning required if container materials are climatically sensitive
- Test duration based on specifications or damage observation
- Comprehensive report includes test details and damage documentation
- Testing can be performed on any axis or orientation
- Keystone Services
- ISTA and ISO 17025 certified testing lab
- Accommodates flexible and rigid packages of all sizes
- Provides short lead times for scheduling
- Offers reliable testing and reports for customers