Name: I.S. EN ISO 18369-4:2017&LC:2018
Brand: NSAI
Price: 82 EUR
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OPHTHALMIC OPTICS - CONTACT LENSES - PART 4: PHYSICOCHEMICAL PROPERTIES OF CONTACT LENS MATERIALS (ISO 18369-4:2017, CORRECTED VERSION 2017-10-01)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

14-02-2018

Publisher

National Standards Authority of Ireland

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For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Dates of withdrawal of national standards are available from NSAI.

National Foreword
European foreword
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

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

Committee	ISO/TC 172
DevelopmentNote	Supersedes I.S. EN ISO 10339, I.S. EN ISO 10340, I.S. EN ISO 11984, I.S. EN ISO 9913-1, I.S. EN ISO 9913-2 and I.S. EN ISO 9914. (06/2007)
DocumentType	Test Method
Pages	56
ProductNote	THIS STANDARD IS IDENTICAL TO EN ISO 18369-4 : 2017 Correction version is now available for this standard. The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
BS EN ISO 18369-4:2017	Identical
EN ISO 18369-4:2017	Identical
DIN EN ISO 18369-4:2016-06 (Draft)	Identical
ISO 18369-4:2017	Identical
UNE-EN ISO 18369-4:2007	Identical
NBN EN ISO 18369-4 : 2006	Identical
UNI EN ISO 18369-4 : 2007	Identical
ONORM EN ISO 18369-4 : 2018	Identical
SN EN ISO 18369-4 : 2018	Identical
DIN EN ISO 18369-4 E : 2006	Identical
NF EN ISO 18369-4 : 2017	Identical
NS EN ISO 18369-4 : 2017	Identical
NEN EN ISO 18369-4 : 2017 + COR 2018	Identical

ASTM F 1927 : 2014 : REDLINE	Standard Test Method for Determination of Oxygen Gas Transmission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector
ISO 18369-1:2017	Ophthalmic optics — Contact lenses — Part 1: Vocabulary, classification system and recommendations for labelling specifications
ISO 18369-2:2017	Ophthalmic optics — Contact lenses — Part 2: Tolerances
ISO 18369-3:2017	Ophthalmic optics — Contact lenses — Part 3: Measurement methods
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods

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I.S. EN ISO 18369-4:2017&LC:2018

OPHTHALMIC OPTICS - CONTACT LENSES - PART 4: PHYSICOCHEMICAL PROPERTIES OF CONTACT LENS MATERIALS (ISO 18369-4:2017, CORRECTED VERSION 2017-10-01)

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Abstract

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