00565402 PDF BRITISH STANDARD BS EN 20105 N01 1995 ISO 105 N01 1993 Textiles — Tests for colour fastness — Part N01 Colour fastness to bleaching Hypochlorite The European Standard EN 20105 N01 1995 ha[.]
BRITISH STANDARD Textiles — Tests for colour fastness — Part N01: Colour fastness to bleaching: Hypochlorite The European Standard EN 20105-N01:1995 has the status of a British Standard BS EN 20105-N01: 1995 ISO 105-N01: 1993 BS EN 20105-N01:1995 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: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normalisation Dansk Standardiseringsraad Suomen Standardisoimisliito, r.y Association franỗaise de normalisation Deutsches Institut fỹr Normung e.V Hellenic Organization for Standardization Technological Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseringsforbund Instituto Portugs da Qualidade Asociación Espola de Normalización y Certificación Standardiseringskommissionen i Sverige Association suisse de normalisation British Standards Institution 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 June 1995 Amendments issued since publication © BSI 12-1999 Amd No The following BSI references relate to the work on this standard: Committee reference TCM/25 Special announcement in BSI News November 1992 ISBN 580 21438 Date Comments BS EN 20105-N01:1995 Contents Cooperating organizations National foreword Foreword Scope and field of application Principle References Apparatus and reagents Test specimen Procedure Test report Annex ZA (normative) Normative references to international publications with their relevant European publications National annex NA (informative) Committees responsible National annex NB (informative) Cross-references © BSI 12-1999 Page Inside front cover ii 3 3 4 Inside back cover Inside back cover i BS EN 20105-N01:1995 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-N01:1995 Textiles — Tests for colour fastness — Part N01: Colour fastness to bleaching: Hypochlorite, which is identical with ISO 105-N01:1993 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 to 6, 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 ii © BSI 12-1999 EUROPEAN STANDARD EN 20105-N01 NORME EUROPÉENNE January 1995 EUROPÄISCHE NORM ICS 59.080.10 Descriptors: Textiles, dyes, tests, determination, printing, colour fastness, bleaching, sodium hypochlorite English version Textiles — Tests for colour fastness — Part N01: Colour fastness to bleaching: Hypochlorite (ISO 105-N01:1993) Textiles — Essais de solidité des teintures — Partie N01: Solidité des teintures au blanchiment: Hypochlorite (ISO 105-N01:1993) Textilien — Farbechtheitsprüfungen — Teil N01: Bleichechtheit von Färbungen: Hypochlorit (ISO 105-N01:1993) This European Standard was approved by CEN on 1995-01-02 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 The European Standards exist 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 © 1995 Copyright reserved to CEN members Ref No EN 20105-N01:1995 E EN 20105-N01:1995 Foreword This European Standard has been prepared by Technical Committee CEN/TC 248, Textiles and textile products, the secretariat of which is held by BSI 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 July 1995, and conflicting national standards shall be withdrawn at the latest by July 1995 According to 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 NOTE Normative references to international publications are listed in Annex ZA (normative) © BSI 12-1999 EN 20105-N01:1995 Scope This part of ISO 105 specifies a method for determining the resistance of the colour of textiles of all kinds and in all forms to the action of bleaching baths containing sodium or lithium hypochlorite in concentrations normally used in commercial bleaching It is applicable mainly to natural and regenerated cellulose materials Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 105 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 ISO 105 are encouraged to investigate 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 ISO 105-A01:1989, Textiles — Tests for colour fastness — Part A01: General principles of testing ISO 105-A02:1993, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour ISO 105-C01:1989, Textiles — Tests for colour fastness — Part C01: Colour fastness to washing: Test Principle A specimen of the textile is agitated in a solution of sodium or lithium hypochlorite, rinsed in water, agitated in a hydrogen peroxide solution or sodium hydrogen sulfite solution, rinsed and dried The change in colour is assessed with the grey scale Apparatus and reagents 4.1 Glass or glazed-porcelain container, which can be closed, for specimen and bleaching solution 4.2 Hypochlorite solutions Use one of the two solutions specified in 4.2.1 and 4.2.2 4.2.1 Sodium hypochlorite (NaOCl) solution, containing approximately g of available chlorine per litre, buffered at pH 11 ± 0,2 with 10 g of anhydrous sodium carbonate (Na2CO3) per litre, at a temperature of 20 °C ± °C To prepare this reagent, use commercially available sodium hypochlorite solution This has the following composition: — active chlorine: 140 g/l to 160 g/l; — sodium chloride: (NaCl): 120 g/l to 170 g/l; — sodium hydroxide: (NaOH): 20 g/l maximum; © BSI 12-1999 — sodium carbonate (Na2CO3): 20 g/l maximum; — iron (Fe): 0,01 g/l maximum Dilute 20,0 ml of the commercially available sodium hypochlorite solution to litre with grade water (4.6) To 25 ml of this solution add excess potassium iodide (KI) and hydrochloric acid (HCl) and titrate the liberated iodine with a sodium thiosulfate solution, c(Na2S2O3) = 0,1 mol/l, using starch as indicator Let the volume of sodium thiosulfate solution required be V ml For each litre of working solution at pH 11 ± 0,2 use 14 100/V ml of the diluted sodium hypochlorite solution; 10 g of anhydrous sodium carbonate Dilute to litre All sodium hypochlorite solutions should be prepared just prior to use 4.2.2 Lithium hypochlorite (LiOCl) solution, containing approximately g of available chlorine per litre, buffered at pH 11 ± 0,2 with 10 g of anydrous sodium carbonate (Na2CO3) per litre, at a temperature of 20 °C ± °C To prepare this reagent, use solid lithium hypochlorite, which contains approximately 300 g of LiOCl per kilogram About 10 g of solid lithium hypochlorite dissolved in litre of grade water (4.6) yields a solution of the prescribed concentration of approximately g of available chlorine per litre Prepare the lithium hypochlorite solution as described in 4.2.1 for sodium hypochlorite 4.3 Hydrogen peroxide solution, containing 2,5 ml of hydrogen peroxide [30 % (m/m) H2O2] per litre, or a solution containing g of sodium hydrogen sulfite (NaHSO3) per litre WARNING — Attention is drawn to the need for relevant safety precautions when using hydrogen peroxide 4.4 Soap solution, containing g of soap per litre (see ISO 105-C01:1989, subclause 4.3), for wetting out water-repellent fabrics 4.5 Grey scale for assessing change in colour, complying with ISO 105-A02 4.6 Grade water (see ISO 105-A01:1989, subclause 8.2) Test specimen 5.1 If the textile to be tested is fabric, use a specimen measuring 40 mm × 100 mm EN 20105-N01:1995 5.2 If the textile to be tested is yarn, knit it into fabric and use a piece measuring 40 mm × 100 mm, or wind it closely round a piece of thin, inert material measuring 40 mm × 100 mm to form a layer having the thickness of only one yarn 5.3 If the textile to be tested is loose fibre, comb and compress enough of it to form a sheet measuring 40 mm × 100 mm; in order to support the fibres, sew the sheet on a piece of fabric which will not affect the action of the hypochlorite on the specimen Procedure 6.1 If the textile to be tested has a water-repellent finish, wet out the specimen thoroughly in the soap solution (4.4) at 25 °C to 30 °C Drain the specimen of excess liquor so that it retains approximately its dry mass of wetting-out solution, and immediately place the specimen, opened out, in the sodium or lithium hypochlorite solution (4.2) at 20 °C ± °C at a liquor ratio of 50 : 6.2 If the textile to be tested has no water-repellent finish, wet out the specimen in grade water (4.6) at room temperature, remove the excess water (see 6.1) and place the test specimen, opened out, in the sodium or lithium hypochlorite solution (4.2) at 20 °C ± °C at a liquor ratio of 50 : 6.3 Close the container and allow the specimen to stand in the solution at 20 °C ± °C for 60 Avoid exposure to direct sunlight 6.4 Rinse the specimen thoroughly in cold, running tap-water, and then agitate it at room temperature for 10 in one of the solutions specified in 4.3 6.5 Rinse the specimen thoroughly in cold, running tap-water, remove the excess water and dry the specimen by hanging it in air at a temperature not exceeding 60 °C 6.6 Assess the change in colour of the specimen with the grey scale (4.5) Test report The test report shall include the following particulars: a) the number and date of publication of this part of ISO 105, i.e ISO 105-N01:1993; b) all details necessary for the identification of the sample tested; c) the numerical rating for the change in colour of the specimen © BSI 12-1999 EN 20105-N01:1995 Annex ZA (normative) Normative references to international publications with their relevant publications This European Standard incorporates by dated or undated reference, provisions form other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions or 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 (including amendments) Publication Year Title EN Year ISO 105-A02 1993 EN 20105-A02 1994 ISO 105-C01 1989 Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour Textiles — Tests for colour fastness — Part C01: Colour fastness to washing — Test EN 20105-C01 1992 © BSI 12-1999 blank BS EN 20105-N01:1995 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 bodies were represented: Association of Consulting Scientists Association of Manufacturers of Domestic Electrical Appliances British Retail Consortium British Textile Confederation Home Laundering Consultative Council International Wool Secretariat Lambeg Industrial Research Association Mail Order Traders’ Association Ministry of Defence National Wool Textile Export Corporation Soap and Detergent Industry Association Society of Dyers and Colourists Textile Research Council (FCA) National annex NB (informative) Cross-references Publication referred to Corresponding British Standard ISO 105-A01:1989 BS EN 20105 Textiles — Tests for colour fastness Part A01:1993 General principles of testing BS EN 20105 Textiles — Tests for colour fastness Part A02:1993 Grey scale for assessing change in colour BS EN 20105 Textiles — Tests for colour fastness Part C01:1992 Colour fastness to washing: Test ISO 105-A02:1993 ISO 105-C01:1989 © BSI 12-1999 BS EN 20105-N01: 1995 ISO 105-N01: 1993 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards 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 British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: 020 8996 9000 Fax: 020 8996 7400 BSI offers members an individual updating service called PLUS 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