Drop Test Standards

　　Height Standard: Commonly in the industry, the drop test height for mobile phones typically ranges from 1.2 meters to 1.8 meters. This height simulates scenarios where the phone accidentally drops from the user's hand or common positions like a desktop or pocket. For example, during daily use, the height at which a phone drops from a person's hand while standing is approximately 1.5 meters. By setting such a standard height, it can, to some extent, reflect the anti - drop performance of the phone case in real - life usage scenarios.Angle Standard: Phones can drop at various angles. To comprehensively test the anti - drop ability of phone cases, multiple angles are covered during the test. Common angles include the front, back, sides, and the four corners. Taking the corners as an example, since the impact force is concentrated on the corners when the phone drops, they are the most vulnerable parts. Therefore, the test for corners is particularly important. During the test, the phone is simulated to impact the ground at different angles and directions, such as 45 - degree and 90 - degree angles, to evaluate the protective effect of the phone case under various complex dropping situations.Impact Surface Standard: When testing the anti - drop performance of phone cases, there are clear regulations on the impact surface. Generally, hard surfaces such as concrete floors and marble floors are used to simulate the surfaces that a phone may come into contact with when it drops in real life. Because these hard impact surfaces can generate a large impact force on the phone, they can more strictly test the cushioning and protective capabilities of the phone case. At the same time, some tests also use surfaces with a certain elasticity, such as rubber pads, to simulate the situation where the phone drops on softer surfaces like carpets or lawns, comprehensively evaluating the protective effect of the phone case in different environments.

　　Judging Whether the Anti - drop Effect Meets the Standard

　　Appearance Inspection: After completing the drop test, the phone's appearance is inspected first. Check whether there are scratches, abrasions, paint peeling on the phone's shell, and whether there are cracks or breakages on the screen. If the phone case can effectively protect the phone and keep its appearance free from obvious damage, to some extent, it indicates that its anti - drop effect is good. For example, after multiple drop tests from a height of 1.5 meters, the phone's appearance remains intact, with only slight scratches on the surface of the phone case, which shows that the phone case performs well in protecting the appearance.Function Testing: In addition to the appearance inspection, the functions of the phone also need to be tested. This includes checking whether the screen touch is sensitive, the call is clear, the camera can take normal pictures, and the charging is normal. Even if the phone's appearance has no obvious damage, if there are functional abnormalities, such as the screen touch not working or the camera not being able to focus, it indicates that the anti - drop effect of the phone case does not meet the standard. For example, after a drop test, there is noise during a call, and it is detected that the internal microphone of the phone is damaged, which means that the phone case failed to fully cushion the impact force when the phone dropped, resulting in damage to the internal components of the phone.Repeated Testing: To more accurately judge the anti - drop effect of the phone case, repeated tests are required. The result of a single test may be accidental. By conducting multiple drop tests from different heights and angles, if the phone remains intact and its functions are normal in most cases, it can be considered that the anti - drop effect of the phone case meets the standard. For example, after 20 consecutive drop tests from different heights and angles, the phone can be used normally in 18 cases, with no obvious damage to its appearance, and only 2 cases with slight scratches that do not affect the phone's functions. Then the anti - drop performance of this phone case is relatively reliable.