BS-EN-20105-B02-1993 ISO-105-B02-1988.pdf

BRITISH STANDARD BS EN 20105-B02: 1993 ISO 105-B02: 1988 Textiles Tests for colour fastness Part B02: Colour fastness to artificial light (xenon arc fading lamp test) The European Standard EN 20105-B02:1992 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20105-B02:1993 This British Standard, having been prepared under the direction of the Textiles and Clothing Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 January 1993 © BSI 02-1999 The following BSI references relate to the work on this standard: Committee reference TCM/25 Special announcement in BSI News January 1992 ISBN 0 580 20888 5 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation française de normalisation GermanyDeutsches Institut für Normung e.V. GreeceHellenic Organization for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portuguès da Qualidade SpainAsociación Española de Normalización y Certificación SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20105-B02:1993 © BSI 02-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 1Scope and field of application3 2References3 3Principle3 4Reference materials and apparatus3 5Test specimens4 6Procedure5 7Assessment of light fastness8 8Test report8 9Notes9 Annex A Apparatus for determining light fastness with air-cooled xenon arc lamps10 Annex B Apparatus for determining light fastness with water-cooled xenon arc lamps10 Annex C General information on colour fastness to light11 National annex NA (informative) Committees responsibleInside back cover National annex NB (informative) Cross-referencesInside back cover Figure 1 Mounting for method 16 Figure 2 Mounting for method 27 Figure 3 Mean values obtained from exposures described in 9.3.29 Table Dyes for Blue Wool References 1 to 83 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20105-B02:1993 ii © BSI 02-1999 National foreword This British Standard has been prepared under the direction of the Textiles and Clothing Standards Policy Committee. It is the English language version of EN 20105-B02:1992 Textiles Tests for colour fastness Part B02: Colour fastness to artificial light (xenon arc fading lamp test), published by the European Committee for Standardization (CEN) which is identical with ISO 105-B02:1988, published by the International Organization for Standardization (ISO). The technical content of this British Standard is identical with that of the corresponding method in BS 1006:1990 Methods of test for colour fastness of textiles 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 document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 14, 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. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 20105-B02 November 1992 UDC 677.074/.077:677.016.47:620.1 Descriptors: Textiles, dyeing, dyes, dyeing tests, colour fastness, artificial light tests, arc lamps, xenon lamps English version Textiles Tests for colour fastness Part B02: Colour fastness to artificial light: Xenon arc fading lamp test (ISO 105-B02:1988) Textiles Essai de solidité des teintures Partie B02: Solidité des teintures à la lumière artificielle (Lampe à arc au xénon) (ISO 105-B02:1988) Textilien Farbechtheitsprüfung Teil B02: Lichtechtheit mit künstlichem Licht (Xenonbogenlicht) (ISO 105-B02:1988) This European Standard was approved by CEN on 1992-11-09. 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 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 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 standards 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 Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1992 Copyright reserved to CEN members Ref. No. EN 20105-B02:1992 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20105-B02:1993 © BSI 02-1999 2 Foreword This European Standard is the endorsement of ISO 105-B02. Endorsement of ISO 105-B02 was recommended by the Technical Committee CEN/TC 248, Textiles and textile products, under whose competence this European Standard will henceforth fall. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 1993 and conflicting national standards shall be withdrawn at the latest by May 1993. The standard was approved and in accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20105-B02:1992 © BSI 02-19993 1 Scope and field of application 1.1 This part of ISO 105 specifies a method intended for determining the resistance of the colour of textiles of all kinds and in all forms to the action of an artificial light source representative of natural daylight (D65). The method is also applicable to white (bleached or optically brightened) textiles. 1.2 If there is a possibility of the sample being photochromic, then the test for photochromism shall be applied additionally (see ISO 105-B05). 1.3 This method employs two sets of Blue Wool References. The results from the two sets of references may not be identical. NOTEGeneral information on colour fastness to light is given in Annex C. 2 References ISO 105, Textiles Tests for colour fastness Part A01: General principles of testing Part A02: Grey scale for assessing change in colour Part B01: Colour fastness to light: Daylight Part B05: Detection and assessment of photochromism. CIE Publication No. 51, Method for assessing the quality of daylight simulators for colorimetry. 3 Principle A specimen of the textile is exposed to artificial light under prescribed conditions, along with Blue Wool References. There are two different sets of Blue Wool References which are not interchangeable. The colour fastness is assessed by comparing the change in colour of the specimen with that of the references used. For white (bleached or optically brightened) textiles the fastness is assessed by comparing the change of whiteness of the specimen with that of the references used. 4 Reference materials and apparatus 4.1 Reference materials Two sets of Blue Wool References may be used. The two sets of references are not interchangeable. 4.1.1 References 1 to 8 Blue Wool References developed and produced in Europe are identified by the numerical designation 1 to 8. These references are blue wool cloths dyed with the dyes listed in the table. They range from 1 (very low light fastness) to 8 (very high light fastness) so that each higher numbered reference is approximately twice as fast as the preceding one. Table Dyes for Blue Wool References 1 to 8 4.1.2 References L2 to L9 Blue Wool References developed and produced in America are identified by the letter L followed by the numerical designation 2 to 9. These eight references are specially prepared by blending varying proportions of wool dyed with CI Mordant Blue 1 (Colour Index, Third edition, 43830) and wool dyed with CI Solubilized Vat Blue 8 (Colour Index, Third edition, 73801), so that each higher numbered reference is approximately twice as fast as the preceding reference. The relationship shown in Figure 1 and Figure 2 between the two sets of Blue Wool References is a numerical rather than a performance relationship. 4.1.3 Humidity test control The humidity test control is a red azoic dyed cotton cloth (see 9.3). 4.2 Apparatus 4.2.1 Xenon arc lamp apparatus, either air-cooled or water-cooled. The specimens and the references are exposed in one of the two types of apparatus (see 4.2.1.1 and 4.2.1.2). The variation of the light intensity over the area covered by the specimens and references shall not exceed ± 10 % of the mean. The distance from the surface of the specimen and that of the references to the lamp shall be the same. 4.2.1.1 Air-cooled xenon arc lamp apparatus (see Annex A), consisting of the following elements: a) Light source, in a well ventilated exposure chamber. The light source is a xenon arc lamp of correlated colour temperature 5 500 to 6 500 K. Reference Dye Colour Index designationa 1 2 3 4 5 6 7 8 CI Acid Blue 104 CI Acid Blue 109 CI Acid Blue 83 CI Acid Blue 121 CI Acid Blue 47 CI Acid Blue 23 CI Solubilized Vat Blue 5 CI Solubilized Vat Blue 8 a The Colour Index (Third edition) is published by the Society of Dyers and Colourists, P.O. Box 244, Perkin House, 82 Grattan Road, Bradford BD1 2JB, West Yorks., United Kingdom, and by the American Association of Textile Chemists and Colorists, P.O. Box 12215, Research Triangle Park, North Carolina 27709, USA. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:47:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20105-B02:1992 4 © BSI 02-1999 b) Light filter, placed between the light source and the specimens and references so that the ultra-violet spectrum is steadily reduced. The transmission of the glass used shall be at least 90 % between 380 and 750 nm, falling to 0 % between 310 and 320 nm. c) Heat filter. The spectrum of the xenon arc contains an appreciable amount of infra-red radiation which shall be minimized by heat filters (see 9.1, A.1.1 and A.2.2). d) Exposure conditions. (The light fastness ratings mentioned below are obtained with the Blue Wool References 1 to 8 only): 1) Normal conditions (temperate zone): moderate effective humidity (see 9.3); light fastness of the humidity test control: 5; maximum black panel temperature: 45 °C (see 9.2). 2) Extreme conditions: For testing sensitivity of specimens to different humidity during irradiation, the following extreme conditions are useful: low effective humidity; light fastness of the humidity test control: 6 to 7; maximum black panel temperature: 60 °C (see 9.2); high effective humidity; light fastness of the humidity test control: 3; maximum black panel temperature: 40 °C (see 9.2). 4.2.1.2 Water-cooled xenon arc lamp apparatus (see Annex B), consisting of the following elements: a) Light source, in a well ventilated exposure chamber. Light sources are long-life xenon arc lamps of various sizes depending on the size of the apparatus (see B.1.1 and B.2.1). b) Light filter. Inner and outer filter glass containing and directing the flow of cooling water. An inner filter of Pyrex (borosilicate) glass and an outer filter of clear (soda-lime) glass are used so that the irradiation at the specimen has a lower spectral cut-off at approximately that of window glass (see B.1.2). c) Heat filter. Distilled or deionized water circulating through the lamp assembly between the inner and outer filter glass, cooled by passing through a heat-exchange unit (see B.1.4). d) Exposure conditions. Black panel temperature 63 ± 1 °C (see 9.2), controlled by continuous operation of the blower with thermostatic control of the temperature of a constant volume of air, whose relative humidity is increased by adding moisture to the air as it passes through the conditioning chamber by means of an electrically operated atomizer; the controls of the apparatus are adjusted so that the relative humidity of the air in the test chamber is (30 ± 5) %. Effective humidity: low. Light fastness of the humidity test control: 6-7. 4.2.2 Opaque cardboard, or other thin opaque material, for example thin sheet aluminium or cardboard covered with aluminium foil. 4.2.3 Black panel thermometer (see 9.2). 4.2.4 Grey scale for assessing change in colour (see clause 2). 4.2.5 Colour matching lamp, complying with CIE Publication No. 51, for assessment of the change in whiteness. 5 Test specimens Depending on the number of specimens to be tested and on the shape and dimensions of the specimen holders supplied with the apparatus, the size of the specimen may vary. 5.1 In apparatus of the air-cooled type, usually an area of the textile not less than 4,5 cm × 1 cm is used when several periods of exposure are made side by side on the same specimen, which is the preferred practice. 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. Each exposed and unexposed area shall be not less than 10 mm × 8 mm. 5.2 To facilitate handling, the specimen or specimens to be tested and the similar strips of the references may be mounted on one or more cards as indicat