Welding 101 Practice Test

Eye protection in welding is guided by a standard that spells out what protective eyewear must do to be safe. It defines the performance criteria for lenses and frames—how strong they must be against impacts, how clear the optics need to be, and how well the device shields the eyes from sparks and the bright arc, including UV and IR radiation. This standard is ANSI Z87.1, and eyewear that meets it is marked accordingly. In welding, where the arc emits intense light and heat, using gear that complies with Z87.1 ensures you have reliable protection.

OSHA's regulations require workers to use appropriate PPE and often reference ANSI Z87.1 for the actual technical specs, but OSHA itself does not set those specs. The NFPA standards focus on fire protection and related safety, not eye protection specifications. The ASTM safety glass standard deals with glass properties rather than the protective eyewear performance criteria used in welding. So ANSI Z87.1 is the standard that governs eye protection in welding environments.