1、BRITISH STANDARD BS EN 20105-A03: 1995 ISO 105-A03: 1993 Textiles Tests for colour fastness Part A03: Grey scale for assessing staining The European Standard EN 20105-A03:1994 has the status of a British Standard UDC 677.016.47:677.016.41:535.653BS EN 20105-A03:1995 This British Standard, having bee
2、n prepared under the directionof the Textiles and Clothing Standards Policy Committee, was published underthe authority of the Standards Board and comes intoeffect on 15 January 1995 BSI 03-1999 First published January 1993 Second edition January 1995 The following BSI references relate to the work
3、on this standard: Committee reference TCM/25 Special announcement in BSI News March 1994 ISBN 0 580 23144 5 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the f
4、ollowing countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standard Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardiza
5、tion Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus
6、da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBS EN 20105-A03:1995 BSI 03-1999 i
7、Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Principle 3 National annex NA (informative) Committees responsible Inside back coverBSEN 20105-A03:1995 ii BSI 03-1999 National foreword This British Standard has been prepared under the direction
8、of the Textiles and Clothing Standards Policy Committee. It is the English language version of EN20105-A03:1994 Textiles Tests for colour fastness Part A03: Grey scale for assessing staining, published by the European Committee for Standardization (CEN), which is identical with ISO 105-A03:1993, pub
9、lished by the International Organization for Standardization (ISO). It supersedes BS EN 20105-A03:1993, which is withdrawn. The technical content of this British Standard is identical with that of the corresponding method formerly published in BS 1006:1990 Methods of test for colour fastness of text
10、iles and leather. 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 d
11、ocument comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 4, 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 theinside fron
12、t cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 20105-A03 August 1994 UDC 677.016.47:677.016.41:535.653 Supersedes EN 20105-A03:1992 Descriptors: Textiles, dyes, tests, determination, colour fastness, grey scale, staining of colour English version Textiles Tests for colour fastness Part
13、 A03: Grey scale for assessing staining (ISO 105-A03:1993) Textiles Essais de solidit des teintures Partie A03: Echelle de gris pour l valuation des dgorgements (ISO 105-A03:1993) Textilien Farbechtheitsprfung TeilA03:Graumastab zur Bewertung des Anblutens (ISO 105-A03:1993) This European Standard w
14、as approved by CEN on 1994-08-09. 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 alteration. Up-to-date lists and bibliographical references concerning such natio
15、nal 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 translation under the responsibility of a CEN member into its own language and not
16、ified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingd
17、om. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 20105-A03:1994 EEN20105-A03:1994 BSI 03-1999 2 Foreword This European Standard has
18、been taken over by CEN/TC 248, Textiles and textile products, from the work of ISO/TC 38, Textiles, of the International Organization for Standardization (ISO). The content of this European Standard is identical to the International Standard ISO 105-A03 Textiles Tests for colour fastness PartA03:Gre
19、y scale for assessing staining from1993. This European Standard shall be given the status of a national standard, either by publication of an indentical text or by endorsement, at the latest by February 1995, and conflicting national standards shall be withdrawn at the latest by February 1995. This
20、European Standard supersedes EN 20105-A03:1992. In accordance with the common CEN/CENELEC Rules, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spa
21、in, Sweden, Switzerland and United Kingdom.EN 20105-A03:1994 BSI 03-1999 3 1 Scope This part of ISO 105 describes the grey scale for determining staining of adjacent fabrics in colour fastness tests, and its use. A precise colorimetric specification of the scale is given as a permanent record agains
22、t which newly prepared working standards and standards that may have changed can be compared. 2 Principle 2.1 The essential, or 5-step, scale consists of five pairs of non-glossy grey or white colour chips (or swatches of grey or white cloth), which illustrate the perceived colour differences corres
23、ponding to fastness ratings 5, 4, 3, 2 and 1. This essential scale may be augmented by the provision of similar chips or swatches illustrating the perceived colour differences corresponding to the half-step fastness ratings 45, 34, 23 and 12, such scales being termed 9-step scales. The first member
24、of each pair is white in colour and the second member of the pair illustrating fastness rating 5 is identical with the first member. The second members of the remaining pairs are increasingly darker in colour so that each pair illustrates increasing contrasts or perceived colour differences which ar
25、e defined colorimetrically. The full colorimetric specification is given below. 2.2 The chips or swatches shall be white or neutral grey in colour and shall be measured with a spectrophotometer with the specular component included. The colorimetric data shall be calculated using CIE 1964 supplementa
26、ry standard colorimetric system (10 observer data) for illuminant D 65 . 2.3 The Y tristimulus value of the first member (white) of each pair shall be not less than 85. 2.4 The second member of each pair shall be such that the colour difference between it and the adjacent first member is as follows:
27、 (Bracketed values apply only to the 9-step scale.) 2.5 Use of the scale. Place a piece of the unstained, adjacent fabric (the original piece) and the piece which has been part of a composite specimen in a fastness test (the tested specimen) side by side in the same plane. The surrounding field shou
28、ld be neutral grey colour approximately midway between that illustrating grade 1 and that illustrating grade2 of the grey scale for assessing change in colour (this is approximately Munsell N5). If necessary to avoid effects of the backing on the appearance of the textiles, use two or more layers of
29、 the unstained undyed textile under both original and treated pieces. Illuminate the surfaces with north sky light in the Northern hemisphere, south sky light in the Southern hemisphere, or an equivalent source with an illumination of 600 Ix or more. The light should be incident upon the surfaces at
30、 approximately 45, and the direction of viewing approximately perpendicular to the plane of the surfaces. Compare the visual difference between the original piece and the tested specimen with the differences represented by the grey scale. If the 5-step scale is used, the degree of staining of the te
31、sted specimen is that number of the grey scale which has a perceived colour difference equal in magnitude to the perceived colour difference between the original and the tested specimens; if the latter is judged to be nearer the imaginary contrast lying midway between two adjacent pairs than it is t
32、o either, the tested specimen is given an intermediate assessment, for example 45 or 23. A rating of 5 is given only when there is no perceived difference between the tested specimen and the original piece. If the 9-step scale is used, the degree of staining of the tested specimen is that number of
33、the grey scale which has a perceived colour difference nearest in magnitude to the perceived colour difference between the original piece and the tested specimen. A rating of 5 is given only when there is no perceived difference between the tested specimen and the original piece. When a number of as
34、sessments have been made, it is very useful to compare all the pairs of original and tested specimens which have been given the same numerical rating. This gives a good indication of the consistency of the assessments, since any errors become prominent. Pairs which do not appear to have the same deg
35、ree of contrast as the remainder of their groups should be re-checked against the grey scale and, if necessary, the rating should be changed. Fastness grade CIELAB difference Tolerance 5 0 0,2 (45) 2,2 0,3 4 4,3 0,3 (34) 6,0 0,4 3 8,5 0,5 (23) 12,0 0,7 2 16,9 1,0 (12) 24,0 1,5 1 34,1 2,04 blankBS EN
36、 20105-A03:1995 BSI 03-1999 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Textiles and Clothing Standards Policy Committee (TCM/-) to Technical Committee TCM/25, upon which the following bodie
37、s were represented. Association of Consulting Scientists Association of Suppliers to the British Clothing Industry Limited British Retail Consortium British Textile Confederation Chemical Industries Association Home Laundering Consultative Council International Wool Secretariat Mail Order Traders As
38、sociation Ministry of Defence National Wool Textile Export Corporation SATRA Footwear Technology Centre Soap and Detergent Industry Association Society of Dyers and Colourists Textile Finishers Association Textile Research Council (FCRA) Participation in the detailed technical work was undertaken by
39、 the Society of Dyers and Colourists.BS EN 20105-A03: 1995 ISO 105-A03: 1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the internationa
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