BS 3062-1985
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ID： |
05D4290EF82E47AF9F01361F0097055C |
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文件大小(MB)： |
0.22 |
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页数： |
14 |
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文件格式： |
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日期： |
2013-7-30 |
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购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
BRITISH STANDARD,CONFIRMED,JUNE 1990,BS 3062:1985,Incorporating,Amendment No. 1,Specification for,Ophthalmic lens,materials,UDC 617.7-76:681.732.066.03,Copyright British Standards Institution,Reproduced by IHS under license with BSI - Uncontrolled Copy,No reproduction or networking permitted without license from IHS Not for Resale,--`,,```,,,,````-`-`,,`,,`,`,,`---,BS 3062:1985,This British Standard, having,been prepared under the,direction of the Optical,Equipment Standards,Committee, was published,under the authority of the Board,of BSI and comes into effect on,28 February 1985,. BSI 08-1999,First published April 1959,First revision November 1970,Second revision February 1985,The following BSI references,relate to the work on this,standard:,Committee reference OES/3,Draft for comment 84/65629 DC,ISBN 0 580 14491 7,Committees responsible for this,British Standard,The preparation of this British Standard was entrusted by the Optical,Equipment Standards Committee (OES/-) to Technical Committee OES/3 upon,which the following bodies were represented:,Association of Dispensing Opticians,Department of Health and Social Security,Federation of Manufacturing Opticians,Flat Glass Manufacturers’ Association,Institute of Physics,Ministry of Defence,Amendments issued since publication,Amd. No. Date of issue Comments,5467 September,1986,Indicated by a sideline in the margin,Copyright British Standards Institution,Reproduced by IHS under license with BSI - Uncontrolled Copy,No reproduction or networking permitted without license from IHS Not for Resale,--`,,```,,,,````-`-`,,`,,`,`,,`---,BS 3062:1985,. BSI 08-1999 i,Contents,Page,Committees responsible Inside front cover,Foreword ii,1 Scope 1,2 Designation 1,3 Category of material 1,4 Refractive index and constringence 1,5 Other properties of ophthalmic materials 1,6 Freedom from visible defects 2,7 Flammability 2,8 Information to be provided by the supplier 2,Appendix A Method for determination of refractive index and constringence 3,Appendix B Method for determination of yellowness index and,absorptivity of white materials 3,Appendix C Method for determination of luminous transmittance,of all ophthalmic materials and fatigue of photochromic materials 3,Appendix D Method for determination of solar infra-red transmittance 5,Appendix E Method for determination of internal quality 7,Appendix F Method for assessment of flammability 7,Appendix G Bibliography 7,Figure 1 — Spectral transmittance of heat-absorbing filter 4,Table 1 — Refractive property tolerances 1,Table 2 — Spectral irradiance E2 for the infra-red spectral range 6,Publications referred to Inside back cover,Copyright British Standards Institution,Reproduced by IHS under license with BSI - Uncontrolled Copy,No reproduction or networking permitted without license from IHS Not for Resale,--`,,```,,,,````-`-`,,`,,`,`,,`---,BS 3062:1985,ii . BSI 08-1999,Foreword,This revision of this British Standard was prepared under the direction of the,Optical Equipment Standards Committee and supersedes the second edition,published in 1970, which is withdrawn.,There are three main changes from the previous edition. First, this British,Standard takes into account the international proposal to standardize the,derivation of constringence. Secondly, the method for conditioning glass,specimens before determination of their refractive properties has changed,slightly. Thirdly, the scope has been expanded to cover a greater variety of,ophthalmic materials.,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 document comprises a front cover, an inside front cover, pages i and ii,pages 1 to 8, an inside back cover 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 table on the,inside front cover.,Copyright British Standards Institution,Reproduced by IHS under license with BSI - Uncontrolled Copy,No reproduction or networking permitted without license from IHS Not for Resale,--`,,```,,,,````-`-`,,`,,`,`,,`---,BS 3062:1985,. BSI 08-1999 1,1 Scope,This British Standard specifies requirements for,three categories of white or tinted materials used for,the manufacture of ophthalmic spectacle lenses.,This standard does not specify requirements for,contact lens materials.,NOTE The titles of the publications referred to in this standard,are listed on the inside back cover.,2 Designation,The……
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