The high mass impact test in ANSI Z87.1 includes which of the following?

The high mass impact test in ANSI Z87.1 includes which of the following?

• A. Pointed projectile
• B. A 150 feet per second impact
• C. A 500 g object
• D. An object dropped from 50 inches

Answer: (C)

High mass impact testing checks how well eyewear stands up to a heavy, blunt hit. The defining feature of this test is using a large, 0.5 kg (500 g) mass that is released to strike the eyewear, delivering a controlled amount of energy. The idea is to simulate a heavy object being dropped or impacting the eye area in a workplace accident, and the mass determines the energy involved. Other options correspond to different tests within ANSI Z87.1. A pointed projectile relates to puncture or penetration tests, not the blunt, heavy impact scenario. A velocity around 150 ft/s describes the high-velocity impact test, which uses a fast, smaller projectile rather than a heavy mass. The height (about 50 inches) is part of the test setup to achieve the intended energy, but the critical characteristic defining the high mass impact test is the 500 g mass itself.

High mass impact testing checks how well eyewear stands up to a heavy, blunt hit. The defining feature of this test is using a large, 0.5 kg (500 g) mass that is released to strike the eyewear, delivering a controlled amount of energy. The idea is to simulate a heavy object being dropped or impacting the eye area in a workplace accident, and the mass determines the energy involved.

Other options correspond to different tests within ANSI Z87.1. A pointed projectile relates to puncture or penetration tests, not the blunt, heavy impact scenario. A velocity around 150 ft/s describes the high-velocity impact test, which uses a fast, smaller projectile rather than a heavy mass. The height (about 50 inches) is part of the test setup to achieve the intended energy, but the critical characteristic defining the high mass impact test is the 500 g mass itself.