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Normas BSI – AENOR
PD ISO/TR 21958:2019

PD ISO/TR 21958:2019

Ophthalmic optics. Review of the test methods used to assess scratch and abrasion resistance of spectacle lenses

Fecha:
2019-09-19 /Definitive
Comité:
CH/172/3
Equivalencias internacionales:

ISO/TR 21958

Resumen:

This document describes the most commonly used test methods considered in standardization work relating to scratch and abrasion resistance of plastic spectacle lenses along with their technical capacities and limitations. It includes the ISO� test method for assessment of claims for basic abrasion resistance in ISO� 8980-5.

This document is intended to be of benefit to any future interest in ISO� standardization on scratch and abrasion resistance of spectacle lenses.

Keywords:
Ophthalmic lenses (spectacles), Ophthalmic filters, Test charts (ophthalmic), Spectacle lenses, Abrasion-resistance testing, Abrasion resistance
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