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immediate downloadReleased: 2018-04-30
BS EN ISO 18369-4:2017
Ophthalmic optics. Contact lenses Physicochemical properties of contact lens materials
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| Standard number: | BS EN ISO 18369-4:2017 |
| Pages: | 46 |
| Released: | 2018-04-30 |
| ISBN: | 978 0 539 00790 9 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 18369-4:2017
This standard BS EN ISO 18369-4:2017 Ophthalmic optics. Contact lenses is classified in these ICS categories:
- 11.040.70 Ophthalmic equipment
This document specifies the methods of testing the physicochemical properties of contact lens materials. These are extraction, rigid lens flexure and breakage, oxygen permeability, refractive index and water content.