1、BRITISH STANDARD BS EN ISO 105-Z08:1998 Textiles Tests for colour fastness Part Z08: Determination of solubility and solution stability of reactive dyes in the presence of electrolytes (ISO 105-Z08:1995) The European Standard EN ISO 105-Z08:1997 has the status of a British Standard ICS 59.080.01BS E
2、N ISO105-Z08:1998 This British Standard, having been prepared under the direction of the Sector Board forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15 January 1998 BSI 04-1999 ISBN 0 580 29452 8 National foreword This British Standard is t
3、he English language version of EN ISO 105-Z08: 1997. It is identical with ISO105-Z08:1995. The UK participation in its preparation was entrusted by Technical Committee TCI/25, Chemical properties, to Subcommittee TCI/25/-/10, Colour fastness, which has the responsibility to: aid enquirers to underst
4、and the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on th
5、is subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards w
6、hich 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 Standards Electronic Catalogue. A British Standard does not purport to include
7、 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
8、and ii, theEN ISO title page, page 2, the ISO title page, page ii, pages 1 to 4, 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. Amendments is
9、sued since publication Amd. No. Date CommentsBS EN ISO 105-Z08:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword ii Text of EN ISO 105-Z08 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 105-Z08 September 1997 ICS 59.080.10 Descriptors: See I
10、SO document English version Textiles Tests for colour fastness PartZ08:Determination of solubility and solution stabilityof reactive dyes in the presence of electrolytes (ISO 105-Z08:1995) Textiles Essais de solidit des teintures Partie Z08: Dtermination de la solubilit et de la stabilit en solution
11、 des colorants ractifs en prsence dlectrolytes (ISO 105-Z08:1995) Textilien Farbechtheitsprfungen TeilZ08: Bestimmung der Lslichkeit und der Lsungsbestndigkeit von Reaktivfarbstoffen in Gegenwart von Elektrolyten (ISO 105-Z08:1995) This European Standard was approved by CEN on 24August1997. CEN memb
12、ers 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 applicati
13、on 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 s
14、ame 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, Switzerland and United Kingdom. CEN European Committee
15、 for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 105-Z08:1997 EEN ISO 105-Z08:1998
16、BSI 04-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC 38 “Textiles” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 248 “Textiles and textile products”, the secretariat of wh
17、ich 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 month of March 1998, and conflicting national standards shall be withdrawn at the latest by March 1998. According to the CEN/CEN
18、ELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Swi
19、tzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 105-Z08:1995 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative). Contents Page Foreword 2 1 Sco
20、pe 1 2 Normative references 1 3 Principle 1 4 Apparatus and reagents 1 5 Test parameter 2 6 Preparation of solution 2 7 Storage 2 8 Filtering the solutions 2 9 Evaluation 3 10 Test report 3 Annex A (informative) Factors affecting results 4 Annex ZA (normative) Normative referencestointernational pub
21、licationswiththeirrelevant Europeanpublications Inside back cover Table 1 Examples of combinations oftestparameters 3EN ISO105-Z08:1998 ii BSI 04-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wor
22、k of preparing International Standards is normally carried out through ISO 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 organizations, governmental and non-governme
23、ntal, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for votin
24、g. Publication as an International Standard requires approval by at least 75% of the member bodies casting a vote. International Standard ISO105-Z08 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 1, Tests for coloured textiles and colorants. ISO 105 was previously published
25、 in thirteen “parts”, each designated by a letter (e.g.“Part A”), with publication dates between 1978 and 1985. Each part contained a series of “sections”, each designated by the respective part letter and by a two-digit serial number (e.g. “Section A01 ”). These sections are now being republished a
26、s separate documents, themselves designated “parts” but retaining their earlier alphanumeric designations. A complete list of these parts is given in ISO 105-A01. Annex A of this part of ISO 105 is for information only. Descriptors: Textiles, dyeing, colour fastness, dyes, tests, colour fastness tes
27、ts, determination, stability.EN ISO 105-Z08:1998 BSI 04-1999 1 1 Scope This part of ISO 105 describes a method for the determination of the solubility and the solution stability of reactive dyes for use in batchwise and continuous dyeing processes in the presence of electrolytes. NOTE 1Several facto
28、rs which may influence test results are listed in Annex A. 2 Normative references The following 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 t
29、o revision, and parties to agreements based on this part of ISO105 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 1773:1976, Laboratory glas
30、sware Boiling flasks (narrow-necked). ISO 3696:1987, Water for analytical laboratory use Specification and test methods. 3 Principle Several solutions of known concentration, including the solution stability limit, of the dye to be tested are prepared at a specified temperature in accordance with th
31、e dye manufacturers recommendation. The dye solution is adjusted to the desired test temperature. A specified amount of the desired electrolyte solution is added and the resultant solution either filtered immediately or stored for a specified time at a specified temperature and subsequently filtered
32、 under suction. The solubility and/or solution stability limits of the dye solution to the addition of electrolyte are determined by visual assessment of the filter residues and the measured flow-through time of the filtrate. 4 Apparatus and reagents 4.1 Erlenmeyer flask, wide-mouthed, capacity500ml
33、, complying with ISO1773. 4.2 Heating bath, thermostatically controlled, with magnetic stirring bar 40mm long by6mm diameter, speed of stirrer500 r/min to 600r/min. 4.3 Water bath, with temperature regulator (heating/cooling) for adjusting the storage temperature. 4.4 Nutsch filter (Bchner funnel),
34、heatable, of glass, steel or porcelain, of inner diameter 70mm, capacity at least200ml, having more than100holes with a total surface area of holes (evenly distributed) of not less than200mm 2 . 4.5 Thermostatic device (optional), with circulation pump to adjust temperature of Nutsch filter. 4.6 Vac
35、uum apparatus. 4.6.1 Suction bottle, capacity 1 litre to 2 litres. 4.6.2 Piston or membrane pump, of sufficiently high suction capacity to create a full vacuum of atleast50 kPa under pressure. 4.6.3 Apparatus to adjust and maintain a given vacuum, preferably coupled with a manometer. 4.7 Stopwatch,
36、to measure flow-through time. 4.8 Filter paper, circular, 70mm 2mm diameter. NOTE 2Filter papers of the following characteristics have been found suitable: See ISO105-A01:1994, clause 8, note 1 for information on sources of supply of suitable filter paper. The type of filter paper used and the manuf
37、acturer shall be listed in the test report. 4.9 Water, complying with grade 3 of ISO3696 (recommended pH 7), used as solvent. 4.10 Electrolyte solution (stock solution), prepared using grade 3 water (4.9) according to the concentrations given in Table 1 or such that the required quantity of the desi
38、red electrolyte is contained in50ml of solution. NOTE3The reproducibility of the test method depends on the quality of the electrolyte. For this reason, chemically pure substances should be used. NOTE4Although the electrolytes used are mostly simple salts, tests of the stability of their solutions,
39、which need to be carried out rapidly, often prove not very meaningful. Electrolyte solutions should therefore be discarded at the latest one week after their preparation. Property Two typical sets of values Grammage, g/m 2 92 121 Thickness, 4m 210 330 Air resistance, Gurley, s/100 ml 3,6 1 Wet burst
40、 strength, kPa 1 4 Surface appearance smooth smoothEN ISO 105-Z08:1998 2 BSI 04-1999 5 Test parameters The parameters chosen for the test, including dissolving, storage and filtration temperatures, electrolyte chosen and its concentration, will depend on the type of dyestuff being tested. Examples o
41、f combinations of test parameters are given in Table 1. 6 Preparation of solutions 6.1 The concentrations at which the test dye solutions are prepared shall be chosen considering the expected solution stability limit of the dye in the presence of electrolyte: The maximum dye concentrations used for
42、the test shall be: 30 g/l for batchwise dyeing processes; 100 g/l for continuous dyeing processes. 6.2 Place a known amount of the dye to be tested in the wide-mouthed Erlenmeyer flask (4.1) and add150ml water (4.9) at about 60C (but not above the dissolving temperature). Swirl the flask by hand unt
43、il the dye is fully wetted out (predissolving). If the addition of urea is required as a dissolving agent in accordance with the recommendations of the dye manufacturer, reduce the amount of water by 1ml per gram of urea added, so as not to change the total volume of the test solution. Place the sol
44、ution into the heating bath (4.2), set at the desired dissolving temperature and stir for 10 min at 500 r/min to600 r/min. 6.3 In order to simulate dyebath compositions used in commercial practice, additions of other components to the test solution at this point are permissible (see dye manufacturer
45、s recommendations). Any such additions, including their influence on the volume of test solution, shall be noted in the test report. NOTE 5Changes in volume attributable to changes in temperature need not be taken into account. 6.4 Adjust the dye solution to the desired temperature for filtration or
46、 storage using the water bath (4.3), add 50ml of the electrolyte solution(4.10) previously adjusted to the test temperature, and homogenize the resulting solution. 7 Storage Allow the final test solution to stand at constant temperature for the specified storage time (seeTable 1). 8 Filtering the so
47、lutions NOTE 6In order to avoid any temperature shock effects, it is essential that heated solutions are filtered through equipment already brought to the same temperature as the solution under test. Ideally this is best done using a jacketed filter funnel, but acceptable results can also be obtaine
48、d using preheated funnels, either by immersion in a water bath or oven, or by passing water preheated to the test temperature through the equipment immediately prior to carrying out the test. When using this latter technique, the amount of water should be determined locally in order that the filter
49、funnel can be heated to the same temperature irrespective of its geometry and the ambient conditions. In all cases when using preheating techniques rather than a jacketed funnel, the test solution should be passed through the test equipment immediately after removing it from its heating medium. 8.1 Preheat the Nutsch filter (4.4) to the test temperature and maintain at this temperature throughout the entire filtration operation. 8.2 Immediately before filtering, wet out two filter papers (4.8) and place in the Nutsch filter in
