Sunglasses drop ball test

SUNGLASSES are one of the most common products nowadays. Sunglasses come in a wide variety of types and colors, such as the currently popular ACETATE sunglasses (Acetate Sunglasses), METAL sunglasses (Metal Sunglasses), TITANIUM sunglasses (Titanium Sunglasses), etc. It also There is one quality indicator that is very important, and that is the falling ball test.

The falling ball test is mainly for sunglasses. Sunglasses are one of the most important accessories for sunglasses. In addition to basic functions such as UV protection, their impact resistance is also very important. They can ensure that your eyes will not be hurt by lens fragments when you accidentally fall.

FDA requires sunglasses lenses imported into the United States to comply with the lens impact resistance test requirements of 21CFR801.410, also known as the drop ball test. The ball drop test is to drop a steel ball on the convex surface of the lens from a certain height to observe whether the lens is broken. FDA uses it to test the impact resistance of lenses. The FDA mainly tests lenses. During the test, the lenses will be framed with a clamp for this test. The steel ball is required to have a diameter of 0.625 inches, a weight equivalent to 1 ounce dropped from a height of 50 inches, and the lens is required not to be broken.

When lenses or sunglasses are exported to the United States, they need to pass the drop ball test, also called the drop test. According to the standard 21 CFR801.410. Steel balls used for drop impact tests to prove that the batch of products exported to the United States meet the standard requirements and qualifications for impact resistance. When exporting related goods to the United States, you should note that not only all FDA manufacturer and product registration numbers must be provided during U.S. customs clearance, but also the following factory batch quality inspection documents must be provided.

Certification Statement of Impact Resistance Impact-resistant lens manufacturer's statement of compliance (that is, the manufacturer declares to the FDA that it has conducted a pre-factory impact test/drop ball test in accordance with FDA regulations and passed the test, signed by the person in charge of the manufacturer) document).

lmpact Resistance Test Report Impact Resistance Test Report (also called drop ball test report; the drop ball test is the basic test for the final batch testing of all the above-mentioned related lenses to prove that the batch of products exported to the United States meets the impact resistance standard requirements and is qualified. Usually, the test report will only be provided when the relevant customs specifically requires it. Generally, the above statement can be used as proof of compliance).

Sunglasses are the main product of our factory, including acetate sunglasses, metal sunglasses and titanium sunglasses. Sunglasses are not manufactured by us, but when we purchase sunglasses, we pay great attention to the qualifications of the lens factory. Generally, they will pass strict various tests. After we receive the lenses, we will also conduct detailed inspections, including appearance inspection and functional inspection, including a ball drop test.