Why Car Crash Tests Are Not Fast
Regarding the driving speed of the car crash safety test, it is almost impossible to find a car crash test with a speed of 100K kilometers per hour. The tests in China, Germany, Japan, the United States, Europe, Australia and other countries that can be found online are almost 50 to 60 kilometers. , why not test a higher speed? First of all, the principle of the car crash test is to simulate the state of the actual traffic accident. Generally, when a crash occurs, the car does not hit the target at full speed. There is a braking action. The 2012 version of China's C-NCAP crash test claims to have adopted almost the same crash standards as the European safety crash: a frontal collision with a vehicle speed of 50km/h and a 100% overlap of rigid fixed barriers, a vehicle speed of 64km/h, and a collision rate of 64km/h. Frontal offset collision with 40% overlapping rate of deformable barriers, side collision of deformable moving barriers with a speed of 50km/h, and neck protection test items after low-speed rear collision. Secondly, the energy at the time of the collision is proportional to the square of the speed of the vehicle. Even if the car with the best five-star safety test encounters a collision at a higher speed, it will be vulnerable. It's almost pointless to test higher speed crashes, a fool would crash a car at full power, and the car wasn't built to crash. At higher speeds, all kinds of cars crashed into a pile without distinction. In fact, with the advancement of design level, technology and materials, the speed of crash test is gradually increasing, and the test standard is becoming more and more demanding.
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Choosing the right abrasion testing equipment is essential for obtaining accurate and repeatable wear resistance results. DIN Abrasion Tester and Taber Abrasion Tester are two widely used abrasion testing machines, but they are designed for different material types and testing purposes.
This article provides a detailed comparison between DIN Abrasion Tester and Taber Abraser, covering their working principles, specimen requirements, industry applications, standard compliance, technical characteristics, operation features and practical advantages. DIN Abrasion Tester is mainly designed for rubber, elastic materials, tires, conveyor belts and footwear soles, while Taber Abrasion Tester is suitable for flat materials such as coatings, textiles, plastics, leather, metals and decorative surfaces.
By understanding the differences between these two abrasion testing methods, laboratories can select the most suitable abrasion tester based on sample geometry, testing standards and production quality control requirements.
The air permeability tester is a high-precision testing instrument designed to evaluate the breathability of PPE materials, textile fabrics, non-woven fabrics, woven fabrics, and industrial filter media. It plays a critical role in quality control, product development, and laboratory research across multiple industries including PPE, textiles, automotive interiors, and filtration systems.
Modern instruments such as the GT-C27 Air Permeability Tester are developed with advanced sensor systems, automated control logic, and multi-standard compatibility to ensure reliable and repeatable results. Complying with global standards such as ISO 9237, ASTM D737, DIN 53887, and GB/T 5453, it guarantees internationally recognized testing performance.
With high automation, accurate pressure sensing, and flexible unit conversion systems, air permeability testing equipment significantly improves testing efficiency while reducing human error. It is widely used in PPE manufacturing, textile engineering, non-woven product development, and industrial filtration quality inspection.
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