1、STD-BSI BS EN IS0 LOEi-ZLO-ENGL 1777 Lb24bb7 0793467 575 BRITISH STANDARD BS EN IS0 105-ZlO: 1999 Textiles - Tests for colour fastness - Part Z10: Determination of relative colour strength of dyes in solution The European Standard EN IS0 105210 1999 has the status of a British Standard ICs 59.080.01
2、 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STD-BSI BS EN IS0 105-ZLO-ENGL 1999 = 1b24bb9 0793470 297 direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 September 1999 Amd
3、. No. O BSI 09-1999 BS EN IS0 105-210:1999 Date Comments National foreword This British Standard is the English language version of EN IS0 1052101999. It is identical with IS0 105Z101999. The UK participation in its preparation was entrusted to Technical Committee TCI/l, Fastness testing and colour
4、measurement of tedes, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internationaihropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related internationai and European de
5、velopments and promulgate them in the UK. A list of organizations representeti on this committee can be obtained on request to its secrem. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international public
6、ations with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index“, or by using the “Find“ facility of the BSI
7、Standards Electronic Catalogue. A British Standard does not purport to include ali the necessary provisions of a conmct. 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
8、pages This document comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii and iii, a blank page, pages 1 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. ISB
9、N O 680 32960 X STD-ES1 BS EN IS0 LOS-ZLO-ENGL 3977 = lib24bb7 0773473 123 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 105-210 May 1999 ICs 59.080.01 English version Textiles - Tests for colour fastness - Part 210: Determination of relative colour strength of dyes in solution (IS0 105-Z
10、10:1997) Textiles - Essais de solMit des teintures - PaRie 210 Dtermination de Iintensit relative de la couleur des colorants en sduori (Is0 105-210:1997) Textilien - Farbechtheitspriifungen - Tell 210: Bestimmung der relativen Farbstrke von Farbstoffen in Lsung (IS0 1 05-21 O: 1 997) This European
11、Standard was approved by CEN on 16 April 1999. CEN members are bound to comply with the CEWCENELEC 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 bibiiographical references concernin
12、g such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three oficial versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own langu
13、age and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy. Luxembourg, Netherlands. Norway. Portugal, Spain, Sweden, S
14、witzerland and United Kingdom. EUROPEAN COMMIITEE FOR STANDARDIUTION EUROPISCHES KOMITEE FOR NORMUNG COMITE EUROPBEN DE NORMALISATION Central Secretariat: rue de Stassatt, 36 B-1050 Brussels Q 1999 CEN Ali rights of exploitation in any form and by any means reserved worldwide for GEN national Member
15、s. Ref. No. EN IS0 105-Z10:1999 E - - - - STD-BSI BS EN IS0 LUS-ZLO-ENGL 1999 Lb24bb9 0793472 ObT = EN IS0 106-210:1999 Foreword The text of the Intemational Standard from Technical Committee ISOTTC 38 “Textiles“ of the International Organization for Standardization (ISO) has been taken over as an E
16、uropean Standard 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 November 7999, and conf
17、licting national standards shall be withdrawn at the latest by November 1999. According to the CENXENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, G
18、ermany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 105-Z10:1997 has been approved by CEN as a European Standard without any modification. STD-BSI BS EN IS
19、0 105-ZLO-ENGL 1999 1ib24bb9 0793473 TTb m EN IS0 lOS-Z10:1999 INTERNATIONAL STANDARD IS0 105-21 O First edition 1 997-1 2-1 5 Textiles - Tests for colour fastness - Part Z10: Determination of relative colour strength of dyes in solution Textiles - Essais de solidit des teintures - Partie Z70: Dterm
20、ination de /intensit relative de la couleur des coforants en solution Reference number IS0 105-Z10:1997() I STDeBSI BS EN IS0 105-Z10-ENGL 1999 Lb24bb9 0793474 932 EN IS0 lOS-Z10:1999 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bo
21、dies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizatio
22、ns, governmental and non- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circula
23、ted to the member bodies for voting. Publication as an International Standard requires approval by at least 75 70 6f the member bodies casting a vote. International Standard IS0 105-21 O was prepared by Technical Committee ISOTTC 38, Textiles, Subcommittee SC 1, Tests for coloured textiles and color
24、ants. IS0 1 O5 was previously published in thirteen “parts“, each designated by a letter (e.g. “Part A“), with publication dates between 1978 and 1985. Each pari contained a series of “sections“, each designated by the respective pari letter and by a two-digit serial number (e.g. “Section A01“). The
25、se sections are now being republished as separate documents, themselves designated “parts“ but retaining their earlier alphanumeric designations. A complete list of these parts is given in IS0 105-AOl . Annex A of this part of IS0 105 is for information only. Descriptors: textiles, dyes. colour fast
26、ness, tests, coiour-fastness tests, determination, colouring power. ii STD.BSI BS EN IS0 105-ZlO-ENGL 1999 W 3624bb9 0793475 879 EN IS0 106-210:1999 INTRODUCTION This part of IS0 105 describes a practicable method for determination of colour strength based on absorbance measurement of dye solutions.
27、 The relative colour strength is defined primarily by means of comparison of dyeings, which are prepared from the dye under test and the reference dye at the same depth. The relative colour strength is therefore the reciprocal ratio of the dye concentrations, expressed as a percentage, hence it is a
28、 value defined by means of an application technique and is associated with the conditions of preparation of the dyeings and their evaluation. Despite this general limitation, determination of colour strength in solution is useful because of the decisive advantage of higher accuracy (reproducibility)
29、 with little expenditure of effort. The validity of the result should be controlled by comparison with evaluation by means of an application method. iii Textiles - Tests for colour fastness - Part 210: Determination of relative colour strength of dyes in solution 1 Scope This method is intended for
30、the determination of the colour strength of a dye in relation to that of a reference dye by means of spectrophotometric absorption measurements on solutions of dyes. NOTES 1 Basic requirements for this method are that the dye solutions do not scatter light and obey the Bougher-Lambert-Beer law as we
31、ll as identical or similar absorption curves of the samples and the reference in the visible region of the spectrum. 2 Identical or similar absorption curves are usually obtained if the tests are carried out for the purpose of dye production control of batches/deliveries of the same dye. This method
32、 is not applicable for the evaluation of dyes with distinctly different adsorption curves. 3 The colour strength of a dye is not a physical constant, since it is dependent, for example, on the test medium and test method. The colour strength determined by this method therefore may differ from those
33、found by other determinations, e.g. instrumental or visual assessments of dyeings. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 105. At the time of publication, the editions indicated were valid. Al
34、l standards are subject to revision and parties to agreements based on this part of IS0 105 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards, Previ
35、ous page is blank 1 IS0 648: 1977, Laboratory glassware - One-mark pipettes. IS0 1042: 1983, Laboratory glassware - One-mark volumetric flasks. 3 Definitions For the purposes of this part of IS0 105 the following definitions apply : 3.1 colour strength: A measure of the ability of a dye to impart co
36、lour to other materials characterized by its absorption in the visible region of the spectrum and expressed as a colour strength value. 3.2 relative colour strength: The percentage ratio of the colour strength value of the sample to that of the reference dye, the colour strength of which is 100 %. N
37、OTE - As the relative clour strength is determined by a comparison with a reference dye, this is assumed to remain constant. It is essential therefore to ensure careful storage and control of the reference dye. Many dyes are hygroscopic and sensitive to oxidation. It is essential to protect the refe
38、rence dye from exposure to light in firmly sealed containers that are impervious to moisture. 3.3 colour strength value: The extinction coefficient at the maximum absorption of the reference dye. NOTE - Colour strength is traditionally a colouristic concept, being based essentially on a visual asses
39、sment. Therefore colour strength determined instrumentally should not contradict visual assessment. Such a contradiction would not be expected if the samples to be compared exhibit concentration-dependent differences in absorption only i.e. their absorption curves in the visible region are identical
40、 when the strength of the absorption curves is made equal, or show only insignificant differences. If the absorption curves differ more markedly (shade differences), a better correlation with visual assessment may be obtained if the weighted total extinction in the visible region is used as the colo
41、ur strength value. 4 Principle Solutions of the dye under test and the reference dye are prepared and the absorptivity or colour strength values derived from them are determined. The percentage relative colour strength F, is given by the following equation : F,=x100 f fkl 2 where fk, fk2 is the colo
42、ur strength value of reference dye; is the colour strength value of dye under test. 5 Apparatus 5.1 Flasks, in accordance with IS0 1042. 5.2 Pipettes, in accordance with IS0 648. 5.3 Cells. 5.4 Cuvettes or flow cells. 5.5 Analytical balance. 5.6 Spectrophotometer or filter colorimeter. 6 Solvents WA
43、RNING - This part of IS0 105 calls for the use of substances and/or procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. It has been a
44、ssumed in the drafting of this part of IS0 105 that the execution of its provisions is entrusted to appropriately qualified and experienced people. NOTE - When selecting solvents the following aspects are important : solubility of dye; stability of solutions; reproducibility of test; applicability o
45、f result to other media or practical applications. The solvent used shall be selected from the following : for water soluble dyes : water (demineralized) for water insoluble dyes : methanol, ethanol; acetone; N-methylpyrrolidone; cellosolve, ethylene glycol monoethylether; mixtures of the above solv
46、ents. %lute the concentrated stock solution (see 7.1.3 and 7.1.4) with the same solvents. Fsolve the stock dispersion in organic solvents and then dilute. The following additives . e recommended to improve the stability and reproducibility. 3 EN IS0 106-210:1999 (a) To adjust the pH : acids (e.g. su
47、lphuric acid, acetic acid); bases (e.g. sodium hydroxide, sodium carbonate); buffer systems. (b) To eliminate the influence of unwanted metal ions : sequestering agents. (c) Agents with a deagglomerating or disaggregating action in water: surfactants, generally ethylene oxide adducts to alkanols. (d
48、) Other additives: dispersing agents; antioxidants. 7 Procedure 7.1 Preparation of solutions for measurement 7.1.1 Samples Store the samples in firmly sealed containers in order to avoid erroneous results arising from the release or uptake of moisture. 7.1.2 Weighing Weigh an amount of not less than
49、 0,5 g, to avoid errors attributable to micro- inhomogeneities to the nearest 0,000 5 g. NOTE - It is essential to ensure that uptake of moisture by hygroscopic dye samples does not lead to errors during weighing. 7.1.3 Dissolving/dispersing Transfer the weighed dye quantitatively to a graduated flask and then dissolve/disperse it. In general, pre-dissolving/dispersing in about 20 ml of the dissolving/dispersing medium or an additional solvent or auxiliary is advantageous. Water soluble dyes are preferably dissolved hot. NOTE - It is essential to ensure that the
