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1、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 has the status of a British Standard BS EN 20105-N01:1995 This British Standard, having been prepared under the dir
2、ection 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 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference TCM/25 Special announcement in BSI News Nov
3、ember 1992 ISBN 0 580 21438 9 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
4、belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards
5、Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandar
6、diseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments BS EN 20105-N01:1995 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword
7、2 1Scope and field of application3 2Principle3 3References3 4Apparatus and reagents3 5Test specimen3 6Procedure4 7Test report4 Annex ZA (normative) Normative references to international publications with their relevant European publications5 National annex NA (informative) Committees responsibleInsi
8、de back cover National annex NB (informative) Cross-referencesInside back cover BS EN 20105-N01:1995 ii BSI 12-1999 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-N0
9、1:1995 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 m
10、ethod 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 itsel
11、f 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 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporate
12、d. This will be indicated in the amendment table on the inside front cover. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 20105-N01 January 1995 ICS 59.080.10 Descriptors: Textiles, dyes, tests, determination, printing, colour fastness, bleaching, sodium hypochlorite English version Textiles
13、Tests for colour fastness Part N01: Colour fastness to bleaching: Hypochlorite (ISO 105-N01:1993) Textiles Essais de solidit des teintures Partie N01: Solidit des teintures au blanchiment: Hypochlorite (ISO 105-N01:1993) Textilien Farbechtheitsprfungen Teil N01: Bleichechtheit von Frbungen: Hypochlo
14、rit (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 b
15、ibliographical 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
16、 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, Portuga
17、l, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr 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 BS
18、I 12-1999 2 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 endorseme
19、nt, 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, Ice
20、land, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. NOTENormative references to international publications are listed in Annex ZA (normative). EN 20105-N01:1995 BSI 12-19993 1 Scope This part of ISO 105 specifies a method for determining the r
21、esistance 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. 2 Normative references The fol
22、lowing 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 in
23、vestigate 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, Texti
24、les 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 1. 3 Principle A specimen of the textile is agitated in a solution of sodium or lithium hypochlorite, rinsed in water, ag
25、itated in a hydrogen peroxide solution or sodium hydrogen sulfite solution, rinsed and dried. The change in colour is assessed with the grey scale. 4 Apparatus and reagents 4.1 Glass or glazed-porcelain container, which can be closed, for specimen and bleaching solution. 4.2 Hypochlorite solutions U
26、se one of the two solutions specified in 4.2.1 and 4.2.2. 4.2.1 Sodium hypochlorite (NaOCl) solution, containing approximately 2 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 2 C. To prepare this reagent,
27、 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; sodium carbonate (Na2CO3): 20 g/l maximum; iron (Fe): 0,01 g/l maximum. Dilute 20,
28、0 ml of the commercially available sodium hypochlorite solution to 1 litre with grade 3 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 ind
29、icator. 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 1 litre. All sodium hypochlorite solutions should be prepared just prior
30、to use. 4.2.2 Lithium hypochlorite (LiOCl) solution, containing approximately 2 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 2 C. To prepare this reagent, use solid lithium hypochlorite, which contains ap
31、proximately 300 g of LiOCl per kilogram. About 10 g of solid lithium hypochlorite dissolved in 1 litre of grade 3 water (4.6) yields a solution of the prescribed concentration of approximately 2 g of available chlorine per litre. Prepare the lithium hypochlorite solution as described in 4.2.1 for so
32、dium hypochlorite. 4.3 Hydrogen peroxide solution, containing 2,5 ml of hydrogen peroxide 30 % (m/m) H2O2 per litre, or a solution containing 5 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 So
33、ap solution, containing 5 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 3 water (see ISO 105-A01:1989, subclause 8.2). 5 Test specimen 5.1 If the textile to be t
34、ested is fabric, use a specimen measuring 40 mm 100 mm. EN 20105-N01:1995 4 BSI 12-1999 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 thic
35、kness 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. 6 Procedure 6.1 If t
36、he 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 o
37、r lithium hypochlorite solution (4.2) at 20 C 2 C at a liquor ratio of 50 : 1. 6.2 If the textile to be tested has no water-repellent finish, wet out the specimen in grade 3 water (4.6) at room temperature, remove the excess water (see 6.1) and place the test specimen, opened out, in the sodium or l
38、ithium hypochlorite solution (4.2) at 20 C 2 C at a liquor ratio of 50 : 1. 6.3 Close the container and allow the specimen to stand in the solution at 20 C 2 C for 60 min. Avoid exposure to direct sunlight. 6.4 Rinse the specimen thoroughly in cold, running tap-water, and then agitate it at room tem
39、perature for 10 min 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)
40、. 7 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. EN 20
41、105-N01:1995 BSI 12-19995 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
42、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
43、 applies (including amendments). PublicationYearTitleENYear ISO 105-A021993Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour EN 20105-A021994 ISO 105-C011989Textiles Tests for colour fastness Part C01: Colour fastness to washing Test 1 EN 20105-C011992 6 blank BS
44、 EN 20105-N01:1995 BSI 12-1999 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 bod
45、ies 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 Trad
46、ers 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 toCorresponding British Standard ISO 105-A01:1989B
47、S EN 20105 Textiles Tests for colour fastness Part A01:1993 General principles of testing ISO 105-A02:1993BS EN 20105 Textiles Tests for colour fastness Part A02:1993 Grey scale for assessing change in colour ISO 105-C01:1989BS EN 20105 Textiles Tests for colour fastness Part C01:1992 Colour fastnes
48、s to washing: Test 1 BS EN 20105-N01: 1995 ISO 105-N01: 1993 BSI 389 Chiswick High Road London W4 4AL 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
49、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