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    I.S. EN ISO 18369-3:2017

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    OPHTHALMIC OPTICS - CONTACT LENSES - PART 3: MEASUREMENT METHODS (ISO 18369-3:2017, CORRECTED VERSION 2017-10-01)

    Available format(s):  Hardcopy, PDF

    Superseded date:  10-07-2020

    Language(s):  English

    Published date:  01-01-2017

    Publisher:  National Standards Authority of Ireland

    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.

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    Table of Contents - (Show below) - (Hide below)

    National Foreword
    European foreword
    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Methods of measurement for contact lenses
    5 Test report
    Annex A (informative) - Measurement of rigid contact
            lens curvature using interferometry
    Annex B (informative) - Measurement of label back vertex
            power of soft contact lenses immersed in saline using
            the Moire deflectometer or Hartmann methods
    Annex C (informative) - Measurement of the radius of
            curvature of contact lenses using the ophthalmometer
    Annex D (informative) - Paddle support for focimeters used for
            power measurements of contact lenses
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines the methods for measuring the physical and optical properties of contact lenses specified in ISO 18369-2, i.e. radius of curvature, label back vertex power, diameter, thickness, inspection of edges, inclusions and surface imperfections and determination of spectral transmittance.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes I.S. EN ISO 10338, I.S. EN ISO 10344, I.S. EN ISO 8599, I.S. EN ISO 9337-1, I.S. EN ISO 9337-2, I.S. EN ISO 9338, I.S. EN ISO 9339-1, I.S. EN ISO 9339-2 and I.S. EN ISO 9341. (02/2007)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO 18369-1:2017 Ophthalmic optics — Contact lenses — Part 1: Vocabulary, classification system and recommendations for labelling specifications
    ISO 14534:2011 Ophthalmic optics Contact lenses and contact lens care products Fundamental requirements
    ISO 9342-1:2005 Optics and optical instruments — Test lenses for calibration of focimeters — Part 1: Test lenses for focimeters used for measuring spectacle lenses
    ISO 10343:2014 Ophthalmic instruments — Ophthalmometers
    ISO 18369-2:2017 Ophthalmic optics — Contact lenses — Part 2: Tolerances
    ISO 5725:1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
    ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
    ISO 18369-4:2017 Ophthalmic optics — Contact lenses — Part 4: Physicochemical properties of contact lens materials
    ISO 8598-1:2014 Optics and optical instruments — Focimeters — Part 1: General purpose instruments
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