BS-EN-ISO-9338-1998 BS-7208-15-1998.pdf
《BS-EN-ISO-9338-1998 BS-7208-15-1998.pdf》由会员分享,可在线阅读,更多相关《BS-EN-ISO-9338-1998 BS-7208-15-1998.pdf(16页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 9338:1998 BS 7208-15: 1998 Optics and optical instruments Contact lenses Determination of the diameters The European Standard EN ISO 9338:1998 has the status of a British Standard ICS 11.040.70 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006,
2、 Uncontrolled Copy, (c) BSI BS EN ISO 9338:1998 This British Standard, having been prepared under the direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1998 BSI 05-1999 ISBN 0 580 30269 5 National fore
3、word This British Standard is the English language version of EN ISO 9338:1998. It is identical with ISO 9338:1996. The UK participation in its preparation was entrusted by Technical Committee CH/78, Ophthalmic optics, to Subcommittee CH/78/4, Physical properties of contact lenses, which has the res
4、ponsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A
5、 list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding Europe
6、an publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Elect
7、ronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This do
8、cument comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO title page, page ii, pages 1 to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment tabl
9、e on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9338:1998 BSI 05-1999i Contents Page National forewordInside front cover Foreword2 Forewordii Tex
10、t of ISO 93381 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9338
11、July 1998 ICS 11.040.70 Descriptors: See ISO document English version Optics and optical instruments Contact lenses Determination of the diameters (ISO 9338:1996) Optique et instruments doptique Lentilles de contact Dtermination des diamtres (ISO 9338:1996) Optik und optische Instrumente Kontaktlins
12、en Bestimmung der Durchmesser (ISO 9338:1996) This European Standard was approved by CEN on 22 June 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteratio
13、n. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translatio
14、n under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy
15、, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any for
16、m and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9338:1998 E Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9338:1998 BSI 05-1999 2 Foreword The text of the International Standard from Technical Committ
17、ee ISO/TC 172 “Optics and optical instruments” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 170 “Ophthalmic optics”, the secretariat of which is held by DIN. This European Standard shall be given the status of a
18、 national standard, either by publication of an identical text or by endorsement, at the latest by January 1999, and conflicting national standards shall be withdrawn at the latest by January 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followi
19、ng countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the Internati
20、onal Standard ISO 9338:1996 has been approved by CEN as a European Standard without any modification. Contents Page Foreword2 1Scope1 2Normative references1 3Definitions1 4Requirements1 5Test report1 Annex A (normative) Determination of diameter of a contact lens using the projection method2 Annex B
21、 (informative) Determination of the total diameter of rigid contact lenses with a V-groove diameter gauge3 Figure A.1 Principle of the apparatus2 Figure B.1 Example of a V-groove diameter gauge with scale on centreline of groove4 Figure B.2 Example of a calibration disc5 Figure B.3 Geometrical relat
22、ionships of a V-groove diameter gauge5 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 15 13:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9338:1998 ii BSI 05-1999 Foreword ISO (t
23、he International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical commit
24、tee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotech
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-EN-ISO-9338-1998 BS-7208-15-1998 BS EN ISO 9338 1998 7208 15
链接地址:https://www.31doc.com/p-3748176.html