Pennsylvania Code
Title 34 - LABOR AND INDUSTRY
Part I - Department of Labor and Industry
Chapter 39 - SAFETY STANDARDS-GENERAL
Subchapter C - HEAD AND EYE PROTECTION
MANUFACTURE OF PROTECTORS
Section 39.573 - Test for clear glass lenses

Universal Citation: 34 PA Code ยง 39.573
Current through Register Vol. 54, No. 38, September 21, 2024

A spherical steel ball 16 grams (0.565 ounces) in weight approximately 1.59 centimeters (0.625 inches) in diameter (weight shall be correct within 20%), shall be dropped once from a height of one meter (39.37 inches) on the center of the horizontal outer surface of the lens when held in a frame. The lens shall be supported by the rim of the frame only, on a rubber washer of 6.5 millimeters (0.25 inches) thick, held upon the top of a board or block of wood. If one out of six lenses that are tested is fractured in such a way that a fragment of glass weighing more than 25 milligrams leaves the bottom surface, four more lenses shall be tested, and if one of these lenses fractures in the manner described above, the lot shall be rejected.

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