اختبار السقوط بالوزن: تقييم مقاومة الصدمات ASTM D3420 ASTM D3420
The drop weight test is a widely used method to evaluate the impact resistance of plastic films, laminates, and flexible packaging materials. By dropping a weight of known mass from a specified height, this test simulates real-world impacts that materials may encounter during handling, transportation, or usage. As a fundamental quality control tool, the drop …
اختبار السقوط بالوزن: تقييم مقاومة الصدمات ASTM D3420 ASTM D3420 اقرأ المزيد »
