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Drejtoria e Përgjithshme e Standardizimit

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ISO/PWI 18369-4

Ophthalmic optics — Contact lenses — Part 4: Physicochemical properties of contact lens materials

General information

Current stage: 00.98 Effective date: May 27, 2026

Originator: ISO

Owner: ISO/TC 172/SC 7

Type: International Standard

Scope

ISO 18369-4:2017 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.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 18369-4:2017

NOW

ABANDON
ISO/PWI 18369-4
00.98 Proposal for new project abandoned
May 27, 2026