The main purpose
This device is suitable for measuring the impact performance of the lenses of eye protectors (eye masks, face masks) against steel balls.
Technical index
1. Equipped with a special test head die
2. With horizontal and vertical two-dimensional adjustable steel ball dispenser;
3. The instrument is equipped with a fixed-elevation lead sinker to ensure that the 1.3m steel ball falling height can be adjusted easily and quickly, and the steel ball's falling point and the lens center are positioned accurately;
4. Steel ball: diameter 22mm, mass (45±1) g;
5. Equipped with a stainless steel wire mesh protective cover to ensure the personal safety of the experimenters;
6. The special head mold fixing device ensures the accurate and firm positioning of the test head mold.
Applicable standards
GB 2626-2019 Respiratory protection Self-priming filter anti-particulate respirator 6.13