1、BRITISH STANDARD BSENISO 105-B05:1996 Textiles Tests for colour fastness Part B05: Detection and assessment of photochromism The European Standard EN ISO105-B05:1995 has the status of a British Standard ICS 59.080.10BSENISO105-B05:1996 This British Standard, having been prepared under the directiono
2、f the Sector Board forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15 January1996 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference TCI/25 Special announcement in BSINews November1994 ISBN 0 58
3、0 23765 6 Committees responsible for this British Standard This British Standard has been prepared by Technical Committee TCI/25 Chemical properties, upon which the following bodies were represented: Association of Consulting Scientists Association of Suppliers to the British Clothing Industry Briti
4、sh Apparel and Textile Confederation British Clothing Industry Association British Measurement and Testing Association British Retail Consortium Chemical Industries Association Consumer Policy Committee of BSI Fabric Care Research Association Ltd. Home Laundering Consultative Council International W
5、ool Secretariat Mail Order Traders Association 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 Participation in the detailed technical work was undertak
6、en by the Society of Dyers and Colourists. Amendments issued since publication Amd. No. Date CommentsBSENISO105-B05:1996 BSI 08-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Principle 3 4 Reference materials and ap
7、paratus 3 5 Test specimen 3 6 Procedure 3 7 Expression of results 4 8 Test report 4 Annex ZA (normative) Normative references to international publications with their relevant European publications 5 List of references Inside back coverBSENISO105-B05:1996 ii BSI 08-1999 National foreword This Britis
8、h Standard has been prepared by Technical Committee TCI/25 and is the English language version of EN ISO105-B05:1995 Textiles Tests for colour fastness Part B05 Detection and assessment of photochromism, published by the European Committee for Standardization(CEN). It is identical with ISO105-B05:19
9、93, published by the International Organization for Standardization (ISO). This British Standard supersedes the corresponding method in BS1006:1990, which is withdrawn by amendment. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards
10、are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard BS EN20105 Textiles Tests for colour fastness ISO105-A01:1989 Part A01:1993 General pri
11、nciples of testing ISO105-A02:1993 Part A02:1995 Grey scale for assessing change in colour ISO105-B02:1988 Part B02:1993 Colour fastness to artificial light (xenonarc fading lamp test) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page
12、, pages2 to6, 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO105-B05 November1995 ICS
13、59.080.10 Descriptors: Textiles, dyes, tests,environmental tests, artificial light tests, determination of colour fastness, phototropy English version Textiles Tests for colour fastness Part B05: Detection and assessment of photochromism (ISO105-B05:1993) Textiles Essais de solidit des teintures Par
14、tie B05: Dtection et valuation de la phototropie (ISO105-B05:1993) Textilien Farbechtheitsprfungen Teil B05: Erkennung und Bestimmung der Photochromie (ISO105-B05:1993) This European Standard was approved by CEN on1995-04-21. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
15、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 member. This European
16、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 are the national s
17、tandards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung
18、Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN ISO105-B05:1995 EENISO105-B05:1995 BSI 08-1999 2 Foreword The text of the International Standard from
19、ISO/TC38, Textiles, of the International Organization for Standardization(ISO) has been taken over as a European Standard by the Technical Committee CEN/TC248, Textiles and textile products. This European Standard shall be given the status of a national standard, either by publication of an identica
20、l text or by endorsement, at the latest by May1996, and conflicting national standards shall be withdrawn at the latest by May1996. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, Fran
21、ce, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnited Kingdom. NOTENormative references to International Standards are listed in Annex ZA(normative).ENISO105-B05:1995 BSI 08-1999 3 1 Scope This part of ISO105 specifies a met
22、hod intended for detecting and assessing change in colour, after brief exposure to light, of coloured textiles which change in colour on exposure to light but which virtually return to their original shade when stored in the dark. NOTE 1This phenomenon used to be termed“phototropism”, but the term “
23、phototropism” is much more widely used in biological science where its meaning is entirely different. As the derivation of“phototropism” is in accord with its biological meaning, the term“photochromism” is preferable for reversible colour changes induced by light. 2 Normative references The followin
24、g standards contain provisions which, through reference in this text, constitute provisions of this part of ISO105. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO105 are encouraged to investiga
25、te the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO105-A01:1989, Textiles Tests for colour fastness Part A01: General principles of testing. ISO105-A02:1993, Textiles Tests
26、 for colour fastness Part A02: Grey scale for assessing change in colour. ISO105-B01:1989, Textiles Tests for colour fastness Part B01: Colour fastness to light: Daylight. ISO105-B02:1988, Textiles Tests for colour fastness Part B02: Colour fastness to artificial light: Xenon arc fading lamp test. 3
27、 Principle A specimen of the textile is exposed to light of high intensity for a time much shorter than that necessary to cause a permanent change. The change in colour of the specimen is assessed immediately after exposure, using the grey scale. The specimen is then stored in the dark and assessed
28、again. 4 Reference materials and apparatus 4.1 Reference materials The references used for this test are References1 and L2 as specified in subclauses4.1.1 and4.1.2 of ISO105-B01:1989. 4.2 Apparatus 4.2.1 Light source, a xenon arc lamp of correlated colour temperature5500K to6500K. 4.2.2 Filter A fi
29、lter is placed between the light source and the specimens and references so that the ultra-violet spectrum is steadily reduced. The transmission of the glass shall be at least90% between380nm and750nm, falling to0% between310nm and320nm. The equipment described in ISO105-B02 is considered most satis
30、factory. 4.2.3 Opaque cardboard, or other thin opaque material, for example thin sheet aluminium, or cardboard covered with aluminium foil, or, in the case of pile fabrics, a cover that avoids surface compression. 4.2.4 Grey scale for assessing change in colour, complying with ISO105-A02. 5 Test spe
31、cimen 5.1 An area of the textile not less than10mm 45mm is required. The specimen may be a strip of cloth, yarns wound close together on a card or laid parallel and fastened on a card, or a mat of fibres combed and compressed to give a uniform surface and fastened on a card. 5.2 To facilitate handli
32、ng, the specimen and a similar strip of the reference may be mounted on cards. 6 Procedure 6.1 Cover approximately one-half of the strip of Reference1 or Reference L2(see4.1) with opaque cardboard(4.2.3). 6.2 Expose the partially covered Reference1 or Reference L2 continuously to the xenon arc fadin
33、g lamp at moderate effective humidity (seeISO105-B02) until the contrast between the unexposed and the exposed portions of the reference is equal to grey scale grade4. Determine the time necessary to produce this change. It will only be necessary to repeat this operation if exposure conditions chang
34、e significantly. 6.3 Cover approximately one-half of the specimen (see5.1) with opaque cardboard(4.2.3). 6.4 Expose the specimen in the same position and under the same conditions as in6.2 for one-quarter of the time necessary to produce a grey scale grade4 fade on Reference1 or one-twenty-fifth of
35、the time necessary to produce a grey scale grade4 fade on Reference L2(see6.2). 6.5 Remove the specimen from the source of light. Immediately remove the cover from the specimen and assess the contrast between the unexposed and the exposed portions with the grey scale.ENISO105-B05:1995 4 BSI 08-1999
36、6.6 If the contrast is not greater than grey scale grade4, the specimen is not photochromic and further examination is not necessary. 6.7 If the contrast between the original and the exposed portion of the specimen is greater than grey scale grade4, leave the specimen in the dark for1h at20 C 2 C an
37、d a relative humidity of (65 2)%. If, after this period, the contrast between the unexposed and exposed portions of the specimen can still be perceived, expose the specimen to steam at atmospheric pressure to accelerate further colour restoration. Carry out the steaming by placing the specimen on a
38、mesh of non-corrodible material which is attached to the mouth of a1litre flask containing500ml of gently boiling water. Mount the specimen with the unexposed side facing the mesh. Steam for a period of60s. 6.8 Inspect the specimen to determine if the contrast between the unexposed and the exposed p
39、ortions is still visible, and, if so, re-assess the contrast between the unexposed and exposed portions of the specimen against the grey scale. 7 Expression of results 7.1 If the specimen shows a contrast not greater than grey scale grade4 between the exposed and unexposed portions immediately after
40、 exposure (see6.6), the specimen is not photochromic; report the light fastness of the specimen in the normal manner described in ISO105-B01 or ISO105-B02. 7.2 If the specimen immediately after exposure shows a contrast between the unexposed and the exposed portions of the specimen which is greater
41、than grey scale grade4 but which after conditioning according to6.7 shows a difference not greater than grey scale grade4-5, it is photochromic. The light fastness rating of the specimen (asdetermined by ISO105-B01 or ISO105-B02) shall be followed by the letter P and the grey scale rating, in bracke
42、ts, for example6(P3-4),6-7(P2-3). 7.3 If the contrast between the unexposed and the exposed portions of the specimen after conditioning is greater than grey scale grade4-5, the sample is not photochromic, but is of low initial light fastness. Assess the light fastness and give the rating for the fir
43、st perceptible change in brackets. 7.4 Temporary changes in colour which may be due to lower moisture content and/or higher temperature and whose existence can be ascertained by a hot pressing test shall not be reported as photochromic. 8 Test report The test report shall include the following parti
44、culars: a) the number and date of publication of this part of ISO105(i.e.ISO105-B05:1993); b) all details necessary for the identification of the sample tested; c) the result of the test, expressed in accordance with the instructions in clause7.ENISO105-B05:1995 BSI 08-1999 5 Annex ZA (normative) No
45、rmative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed
46、 hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year Title EN Year
47、 ISO105-A02 1993 Textiles Tests for colour fastness Part A02. Grey scale for assessing change in colour (ISO105-A02:1993) EN20105-A02 19946 blankBSENISO105-B05:1996 BSI 08-1999 List of references See national foreword.BS EN ISO 105-B05:1996 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandard
48、sInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards
49、 should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically
