BS-EN-13721-2004.pdf
《BS-EN-13721-2004.pdf》由会员分享,可在线阅读,更多相关《BS-EN-13721-2004.pdf(12页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 13721:2004 Furniture Assessment of the surface reflectance The European Standard EN 13721:2004 has the status of a British Standard ICS 97.140 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 12:31:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13721:2004 This Bri
2、tish Standard was published under the authority of the Standards Policy and Strategy Committee on 20 September 2004 BSI 20 September 2004 ISBN 0 580 44464 3 National foreword This British Standard is the official English language version of EN 13721:2004. The UK participation in its preparation was
3、entrusted to Technical Committee FW/1, Common test methods for furniture, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications
4、referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary p
5、rovisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or propos
6、als for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice display
7、ed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 12:31:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13721 July 2004 I
8、CS 97.140 English version Furniture - Assessment of the surface reflectance Meubles - Evaluation de la luminance lumineuse des surfaces Mbel - Bewertung des Oberflchenreflexionsgrades This European Standard was approved by CEN on 13 May 2004. CEN members are bound to comply with the CEN/CENELEC Inte
9、rnal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN membe
10、r. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation 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
11、are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
12、Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13721:2004: E
13、Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 12:31:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13721:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Principle5 5 Viewing/illumination condition geometry .5 6 Standard colorimetric observ
14、er and standard illuminant6 7 Equipment 6 8 Preparation and conditioning of test units/test panels .7 9 Instrument calibration.7 9.1 Calibration7 9.2 Reference scale7 9.3 Reference standards (primary and working)7 10 Test Procedure.7 11 Test report8 Bibliography9 Licensed Copy: sheffieldun sheffield
15、un, na, Mon Oct 30 12:31:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13721:2004 (E) 3 Foreword This document (EN 13721:2004) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national s
16、tandard, either by publication of an identical text or by endorsement, at the latest by January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countrie
17、s are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
18、 and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 12:31:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13721:2004 (E) 4 1 Scope This document specifies a method for the assessment of the surface reflectance of furniture surfaces and relates to rigid surfaces of all finish
19、ed products regardless of materials, except for finishes on leather and fabrics, which are excluded from this document. The test is intended to be carried out on finished furniture, but can be carried out on test panels of the same material, finished in an identical manner to the finished product, a
20、nd of a size sufficient to meet the requirements of the test. The test method does not apply to extreme reflectances, i.e. below 15 % and above 75 %, because in the extreme reflectance range the results of the different measurement methods could deviate. It is not applicable to some metallic paints
21、and pearly coatings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 7
22、724-1:1984, Paints and varnishes - Colorimetry Part 1: Principles ISO 7724-2, Paints and varnishes Colorimetry - Part 2: Colour measurement CIE 1931, Standard colorimetric colour coordinates CIE 1964, Colorimetry, CIE Standard Recommendations 3 Terms and definitions For the purposes of this document
23、 the following terms and definitions apply. 3.1 reflectance ratio of the radiant flux reflected in the directions within a given cone to that reflected in the same directions by a perfect reflecting diffuser identically irradiated in the observed wavelength interval (called spectral reflectance fact
24、or R () in ISO 7724-1:1984) 3.2 trichromatic compound or lightness factor, Y value given by the equation in clause 10 of this document 3.3 test unit finished item of furniture 3.4 test surface part of the test unit, where the test area is included Licensed Copy: sheffieldun sheffieldun, na, Mon Oct
- 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 13721 2004
链接地址:https://www.31doc.com/p-3737856.html