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Abrasion resistance of safety lenses.

Authors
Ascenzi-DM
Source
NIOSH 1976 Jun; :1-38
Link
NIOSHTIC No.
00058294
Abstract
The abrasion resistance is studied of safety spectacle and goggle lenses made from acetate, CR-39, polycarbonate, toughened glass, vinyl and vinyl treated with an anti-fog coating. In addition, the optical properties of prismatic power, refractive power and definition of some of the materials are studied. Goggle lenses are abraded on a Polaroid Type B Abrader. The toughened glass spectacle and goggle lenses are found to be superior to all other materials in all areas of testing. It is found that the polycarbonate spectacle lenses are coated, which increases their ability to resist abrasion. It is emphasized that there does not exist today one material that is perfectly suited to perform well in all areas of eye and face protection. Therefore, the need for judicious choices in the use of plastics in eye and face protective devices is stressed.
Keywords
Eye-protective-equipment; Eye-glasses; Safety-glasses; Goggles; Safety-equipment; Physical-properties; Abrasion-resistant-coatings; Optical-aids; Face-protective-equipment
Publication Date
19760601
Document Type
Numbered Publication
Fiscal Year
1976
NTIS Accession No.
PB-267399
NTIS Price
A04
Identifying No.
(NIOSH) 76-197
NIOSH Division
DPSE
Source Name
National Institute for Occupational Safety and Health
State
OH
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