Accession Number:

AD0757306

Title:

A Comparative Assessment of Eye Protective Devices and a Proposed System of Acceptance Testing and Grading,

Descriptive Note:

Corporate Author:

AUSTRALIAN DEFENCE SCIENTIFIC SERVICE MELBOURNE

Personal Author(s):

Report Date:

1971-06-10

Pagination or Media Count:

18.0

Abstract:

The paper presents the results of ballistic and, where appropriate, drop-ball tests on the following plano eye protective devices i goggles fitted with polycarbonate, cellulose acetate, gauze and polymethyl methacrylate lenses ii faceshields with cellulose acetate visors and iii several clip-on configurations. The results are discussed separately and are also presented graphically to permit comparison with earlier similar data for allyl resin and thermally toughened glass. These results suggest the need for a gradation of eye protective devices based on impact resistance. Suitable tests, using a 25 mm diameter steel ball and a 3 mm steel ball are suggested. The impact strength and scratch susceptibility of currently available materials are compared. No completely suitable material is currently available, and there is need for a new protective material that has good optical properties, high impact resistance, good scratch resistance, good cosmetic appearance and long life, and that, in addition, is cheap, light-weight, and readily worked. Author

Subject Categories:

  • Protective Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE