In the realm of transport packaging, standardized testing plays a crucial role in ensuring product safety during transit. One widely recognized standard is GB/T 4122.5-2002, which outlines common test methods for transport packaging. Many global companies have established rigorous and scientifically sound inspection protocols for their packaging solutions. At Tianyi, all transport packaging tests are conducted based on advanced and internationally accepted standards. These tests typically include design-guided testing, routine transport testing, and environmental transport testing.
Design-guided testing is primarily aimed at evaluating product performance and packaging design. This process helps identify critical failure points through data-driven analysis, allowing for improvements in both the product and its packaging. Two key tests commonly used are frequency sweep testing and impact fragility testing.
First, the frequency sweep test follows ASTM D3580 guidelines. This test is performed both with and without packaging to analyze the frequency response of key components. Sensors are attached to important parts of the sample, and the resonance frequency is determined by plotting the results. The frequency range usually spans from 2 Hz to 200 Hz, with an input acceleration of 0.5 g. Once the resonance frequency is identified, the acceleration can be increased to 1.0 g (twice the original) and maintained for 5 minutes to simulate real-world conditions.
Second, the impact fragility test is based on ASTM D3332. This test does not require packaging and focuses on assessing the product's resistance to impact. It helps uncover weaknesses, improve product quality, and provide a foundation for better packaging design. For home appliance products, the test requires the item to withstand a half-sine wave speed change rate of over 170 cm/s or an impact square wave acceleration of more than 36g.
These two tests should be conducted early in the design phase. If issues are detected, immediate adjustments should be made from both the product and packaging perspectives. Delaying changes until the final stage can lead to significantly higher redesign costs.
Next, product transport testing involves developing a tailored test plan based on the product’s sales direction, logistics environment, and internal enterprise standards. These tests must meet foreign quality and transportation requirements and be integrated throughout the development cycle. The goal is to ensure that the product reaches the end user in perfect condition, minimizing damage caused by transport.
The implementation plan includes classifying products by weight. Products weighing less than 50 kg and those over 50 kg should be tested separately, as different weight ranges may require distinct handling methods according to international transport standards. The tests should also align with global logistics environments and foreign machinery handling requirements.
For small products under 50 kg, the test plan should include Storage stacking tests, mechanical handling tests, vehicle vibration tests, airborne vibration tests, tipping tests, and drop tests. Four samples are typically required to complete all these tests.
Storage stacking tests follow ASTM D642 guidelines. The load calculation formula is L = W, where L represents the total load and W is the weight of the product. This ensures that the packaging can withstand the pressure of stacked goods during storage and transport.
By implementing these comprehensive testing procedures, companies can significantly reduce the risk of product damage and enhance customer satisfaction.
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