as 2228.2-1992 spectacles spectacle frames

7/31/2019 As 2228.2-1992 Spectacles Spectacle Frames

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AS 2228.21992

Australian Standard

Spectacles

Part 2: Spectacle frames

[Title allocated by Defence Cataloguing Authority:SPECTACLE FRAMES NSC 6540]


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This Australian Standard was prepared by Committee MS/24, Ophthalmic Optics. It

was approved on behalf of the Council of Standards Australia on 15 May 1992 and

published on 17 August 1992.

The following interests are represented on Committee MS/24:

Australian Association of Dispensing Opticians

Australian Chamber of Commerce

Australian Medical Devices and Diagnostics Association

Australian Optometrical Association

Confederation of Australian Industry

Guild of D ispensing Opticians

Macquarie University

Optical Distributors and Manufacturers Association of Australia

Queensland University of Technology

Royal Australian College of Ophthalmologists

Victorian College of Optometry

University of New South Wales

Review of Austr alia n Standa rds. To keep abreast of progress in industry, Australian Standards are subjectto periodic review and are kept up t o date by the issue of amendments or new editions as necessary. It isimportant t herefore t hat Standards users ensure that they are in possession of the latest edition, and anyamendments thereto.

Full details of all Australian Standards and related publications wil l be found in the Standards AustraliaCatalogue of Publications; t his information is supplemented each month by the m agazine The AustralianStandard, which subscribing members receive, and which gives details of new publications, new editionsand amendments, and of withdrawn Standards.

Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia,

are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be madewithout delay in order that the matter may be investigated and appropriate action taken.

This Standard was issued in draft form for comment as DR 91706.


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AS 2228.21992

Australian Standard

Spectacles


First published as AS 2228.21992.

PUBLISHED BY ST ANDARDS AUSTRALIA(STANDARDS ASSOCIATION OF AUSTRALIA)1 THE CRESCENT, HOMEBUSH, NSW 2140

ISBN 0 7262 7593 X


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AS 2228.21992 2

PREFACE

This Standard was prepared by the Standards Australia Committee on Ophthalmic Optics to becomePart 2 of the complete revision of AS 22281978, Spectacle lenses.

This Standard is now divided into two parts. Part 1 gives separate consideration to semi-finished

lens blanks, finished stock lenses and surfaced edged and mounted lenses, and separate optical andgeometric tolerances for each type are given.

Part 2 contains the basic requirements for unglazed spectacle frames, and includes performancerequirements, testing r equirements, a method of frame measurement and specifications f or framemarking.

During the development of the Standard, reference was made to the following documentation:

BS3521 Glossary of terms relating to ophthalmic lenses and spectacle f rames

Part 2: Glossary relating to spectacle frames

6625 Specification for spectacle frames

ISO7998 Optics and optical instruments Spectacle frames Vocabulary and lists of equivalent terms

8624 Optics and optical instruments Ophthalmic optics Measuring system for spectacle frames

9456 Optics and optical instruments Ophthalmic optics Marking of spectacle frames

Acknowledgment is made of the as sistance received from t hese sources.

Copyright STANDARDS AUSTRALIA

Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where theCopyright Act allows and except where provided for below no publications or software produced by Standards Australia may bereproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing fromStandards Australia. Permission may be conditional on an appropriate royalty payment. Requests f or permission and inform ation oncommercial software royalties should be directed to the head office of Standards Australia.

Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for useexclusively in-house by purchasers of the Standard without payment of a royalty or advice t o Standards Australia.

Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royaltypayment provided such programs are used exclusively in-house by the creators of the programs.

Care should be taken to ensure that material used is from the current edition of t he Standard and that it i s updated whenever theStandard is amended or revised. The number and date of the Standard should t herefore be clearly i dentified.

The use of material in print form or in computer software programs to be used commercially, with or without payment, or incommercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.


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3 AS 2228.21992

CONTENTS

Page

SECTION 1 SCOPE AND GENERAL

1.1 S CO PE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 R EFE RE N CE D D OCU MEN TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3 D EFINIT IO NS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SECTION 2 PERFORMANCE REQUIREMENTS

2.1 G EN E RA L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.2 T EST IN G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SECTION 3 MEASUREMENT SYSTEM AND DIMENSIONAL TOLERANCES

3.1 M EA SUR EME NT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.2 DIMENSIONAL TOLERANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

SECTION 4 MARKING

4.1 M AR KIN G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154.2 ADDITIONAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

APPENDICES

A EN DUR ANC E TE ST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16B CORROSION/NEUTRAL SALT SPRAY TEST FOR GRADE A SPECTACLE

FR AME S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19C CORROSION/PERSPIRATION TEST FOR GRADE A AND GRADE B SPEC-

TA CLE FRA ME S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20D DETERMINATION OF BRIDGE STRENGTH . . . . . . . . . . . . . . . . . . . . . . . . . 21E FL A MMA BILIT Y TE ST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22


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AS 2228.21992 4

STANDARDS AUSTRALIA

Australian Standard

Spectacles


SECTION 1 SCOPE AND GENERAL

1.1 SCOPE This Standard specifies requirements for unglazed spectacle frames made from alltypes of materials and intended for use with corrective lenses.

It establishes two grades based on performance:

(a) Grade A: all spectacle frames except those specified as grade B.

(b) Grade B: metal spectacle frames for younger children where it is anticipated that the period ofuse will not exceed one year.

Measuring and marking methods for spectacle frames are also specified.

NOTES:

1 Requirements for spectacle lenses are given in AS 2228.1.2 This Standard does not apply to products used for eye protection against industrial hazards (which are covered by

AS 1337) other than frames for safety spectacles, or to frames for non-prescription sunglasses (which are covered byAS 1067, Parts 1 and 2).

1.2 REFERENCED DOCUMENTS The f ollowing documents are referred to i n this Standard:

AS1067 Sunglasses and fashion spectacles1067.1 Part 1: Safety requirements1067.2 Part 2: Performance requirements

1337 Eye protectors for industrial applications

222 8 Sp ectacles2228.1 Part 1: Spectacle lenses

2331 Methods of test for metallic and related coatings2331.3.1 Method 3.1: Corrosion and related property testsNeutral salt spray (NSS) test

1.3 DEFINITIONS For the purposes of this Standard, the definitions given i n Table 3.1 andthose below shall apply.

1.3.1 General definitions

1.3.1.1 Spectacle frame a device for supporti ng spectacle lenses before t he eyes, usually restingon the bridge of the nose and being held in place by sides which project towards or over the ears.

1.3.1.2 Spectacles a spectacle frame to which lenses have been mounted.

1.3.2 Types of frames

1.3.2.1 Combination frame a frame in which some essential parts of the front are made ofplastics or similar material, and other essential parts are made of metal. (See F igures 1.1 and 1.2.)

1.3.2.2 Metal frame a frame in which the front is made primarily of metal. (See Figure 1.3.)

1.3.2.3 Plastic frame a frame in which the front is made primarily of a plastics material or ofa natural material of similar properties. (See Figure 1.4.)

1.3.2.4 Rimless spectacle frame a spectacle frame without rims to support the lenses, the bridgeand sides being attached directly to the lenses. (See Figure 1.5.)

1.3.2.5 Semi-rimless spectacle frame a spectacle frame in which the rim does not fully enclosethe lens, being continuous from the bridge to each side around only part of the lens (usually theupper part). T he lens is often supported around the rest of it s circumference by a retaining cord.(See Figure 1.5.)

1.3.3 Parts of frames general terms

1.3.3.1 Anatomic side a side in which the drop is shaped to conform with the back of the ear.

1.3.3.2 Barrel that part of a hinge which encloses the screw or pin. See also front plate.

1.3.3.3 Brace barsee bridge brace.

COPYRIGHT


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