Table of Contents

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Physicochemical properties of contact lenses
5 Test report
Annex A (informative) - Determination of oxygen
        permeability using the coulometric method
Annex B (informative) - Determination of water
       content by refractive index
Annex C (informative) - Calculation of oxygen
        permeability of hydrogel lenses based on
        water content
Annex D (informative) - Measurement of refractive
        index using a prism coupling device
Bibliography

Abstract

Defines the methods of testing the physicochemical properties of contact lens materials.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
ProductNote	THIS STANDARD ALSO HAVE CORRECTED VERSION FOR ENGLISH AND FRENCH FOR THE YEAR 2017 .
Pages
ISBN
Committee	TC 172
Supersedes	ISO/DIS 18369-4 : 60.00 (2017) ISO 18369-4 : 2006