What is the specification for the basic impact safety glasses drop ball test?

The specification for the basic impact safety glasses drop ball test is based on the ability of the lenses to withstand a specific impact without breaking. This test commonly uses a 1-inch steel ball dropped from a height of 50 inches, which simulates realistic conditions of impact that eyewear may face in various work environments.

This standard ensures that the protective eyewear can adequately safeguard the eyes against falling objects or other types of impacts. The measurements and conditions of the drop ball test are important because they confirm the glasses' compliance with safety standards set by regulatory bodies, ensuring that they provide the necessary level of protection for users in potentially hazardous situations.

While the other options present varying weights and dimensions, they do not align with the established criteria used for testing impact resistance in safety eyewear, which is specifically defined as a 1-inch steel ball from a 50-inch drop for its effectiveness in demonstrating adequate protection.