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immediate downloadReleased: 2019-09-18
ISO/TR 21958:2019
ISO/TR 21958:2019 - Ophthalmic optics — Review of the test methods used to assess scratch and abrasion resistance of spectacle lenses
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English PDF
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153.09 EUR
English Hardcopy
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153.09 EUR
French PDF
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153.09 EUR
French Hardcopy
In stock
153.09 EUR
| Standard´s number: | ISO/TR 21958:2019 |
| Edition: | 1 |
| Released: | 2019-09-18 |
| Pages (English): | 19 |
| Pages (French): | 21 |
DESCRIPTION
ISO/TR 21958:2019
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.