《BS-EN-ISO-11668-2001 BS-6782-13-1998.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-11668-2001 BS-6782-13-1998.pdf（12页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 11668:2001 BS 6782-13:1998 Incorporating Amendment No. 1 to BS 6782-13:1998 (renumbers the BS as BS EN ISO 11668:2001) and Incorporating Corrigendum No. 1 Binders for paints and varnishes Chlorinated polymerization resins General methods of test The European Standard EN IS
2、O 11668:2001 has the status of a British Standard ICS 87.060.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11668:2001 This British Standard, having been pr
3、epared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 April 1998 BSI 17 January 2002 ISBN 0 580 29652 0 National foreword This British Standard is the official English language version of EN IS
4、O 11668:2001. It is identical with ISO 11668:1997. The UK participation in its preparation was entrusted to Technical Committee STI/3, Paint media and related products, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee
5、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 this committee can be obtained on request to its secretary. Cross-references
6、 The British Standards which implement international or European publications referred to in this document 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.
7、 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applications Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises
8、 a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, page ii, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publicati
9、on Amd. No.DateComments 1333317 October 2001Implementation of the European Standard 13582 Incorp. Corr. No. 1 17 January 2002Incorporating annex ZA Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
10、NORM EN ISO 11668 August 2001 ICS 87.060.20 English version Binders for paints and varnishes Chlorinated polymerization resins General methods of test (ISO 11668:1997) Liants pour pientures et vernis Rsines polymrises chlores Mthodes gnrales dessai (ISO 11668:1997) Bindemittel fr Beschichtungsstoffe
11、 Chlorhaltige Polymerisationsharze Allgemeine Prverfahren (ISO 11668:1997) This European Standard was approved by CEN on 11 June 2001. 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 s
12、tandard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other
13、language made by translation under the responsibility of a CEN member into its own language notified to the Management Centre 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, Ic
14、eland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of expl
15、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11668:2001 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11668:2001 BSI 17 January 2002 CORRECTED 2001-09-19 Foreword The text of t
16、he International Standard from Technical Committee ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 139, Paints and varnishes, the Secretariat of which is held by DIN. This European
17、Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2002, and conflicting national standards shall be withdrawn at the latest by February 2002. According to the CEN/CENELEC Internal Regulations, the nation
18、al standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. End
19、orsement notice The text of the International Standard ISO 11668:1997 has been approved by CEN as a European Standard without any modification. NOTE: Normative references to Internation Standards are listed in annex ZA (normative). Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+
20、00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11668:2001 ii BSI 17 January 2002 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards
21、 bodies (ISO member bodies). The work 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 organiza
22、tions, governmental and non-governmental, 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 circu
23、lated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 11668 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, subcommittee SC 10, Test methods for binders f
24、or paints and varnishes. Annex A forms an integral part of this International Standard. Descriptors: Paints, varnishes, binders (materials), vinyl resins, rubber, tests, determination, colour, viscosity, density (mass/volume), determination of content, chlorine. Licensed Copy: sheffieldun sheffieldu
25、n, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11668:2001 BSI 17 January 2002 1 1 Scope This International Standard describes general methods of test for a) chlorinated rubber and b) vinyl chloride copolymers for use in paints, varnishes and similar products. The test m
26、ethods to be applied in each individual case shall be the subject of agreement between the interested parties. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, th
27、e editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard 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 cur
28、rently valid International Standards. ISO 842:1984, Raw materials for paints and varnishes Sampling. ISO 1158:1), Plastics Vinyl chloride homopolymers and copolymers Determination of chlorine content. ISO 3219:1993, Plastics Polymers/resins in the liquid state or as emulsions or dispersions Determin
29、ation of viscosity using a rotational viscometer with defined shear rate. ISO 4630:1997, Binders for paints and varnishes Estimation of colour of clear liquids by the Gardner colour scale. ISO 6271:1997, Clear liquids Estimation of colour by the platinum-cobalt scale. ISO 8130-2:1992, Coating powder
30、s Part 2: Determination of density by gas comparison pyknometer (referee method). ISO 12058-1:1997, Plastics Determination of viscosity using a falling-ball viscometer Part 1: Inclined-tube method. 3 Definitions For the purposes of this International Standard the following definitions apply. 3.1 chl
31、orinated rubber resin resulting from the action of chlorine on polyisoprene, natural rubber or similar polymers and containing chlorine contents of 64 % to 68 % (m/m) 3.2 vinyl chloride copolymer resin resulting from the polymerization of vinyl chloride together with other monomers and containing pr
32、edominantly polyvinyl chloride 4 Sampling Take a representative sample of the product to be tested, as described in ISO 842. 1)To be published. (Revision of ISO 1158:1984). Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11668:2001 2
33、BSI 17 January 2002 5 Test methods 5.1 Colour number For the determination of the colour number dissolve the resin. Determine the colour number of the resin solution as described in ISO 4630 (Gardner colour scale). For resin solutions with a Gardner colour number less than 1 determine the colour as
34、described in ISO 6271 (Platinum-cobalt scale). The test method, the solvent used and the concentration of the resin solution shall be given in the test report. 5.2 Viscosity Determine the viscosity of the resin solution as described in ISO 3219. Indicate the solution temperature and the time period
35、from dissolving the resin until the determination because the viscosity of some polymer solutions depends on this time. For referee methods wait at least 24 h before determining the viscosity. NOTEIt should be borne in mind that not only the temperature but also the intensity of stirring (rate of sh
36、ear), the duration of the dissolving process and the extent of distribution of the polymer in the solvent when beginning the dissolving process influences the viscosity of the solution. The viscosity may be determined using a falling-ball viscometer as described in ISO 12058-1 if agreed between the
37、interested parties. 5.3 Density Determine the density of the resin with a gas comparison pyknometer as described in ISO 8130-2. 5.4 Chlorine content 5.4.1 Chlorine content 50 % (m/m) Determine the chlorine content as described in ISO 1158. 5.4.2 Chlorine content?50 % (m/m) Determine the chlorine con
38、tent as described in Annex A. 6 Test report The test report shall contain at least the following information: a) all details necessary to identify the product tested; b) a reference to this International Standard (ISO 11668); c) the colour (Gardner colour number or Platinum-cobalt colour number), th
39、e solvent used and the concentration of the solution; d) the viscosity, the method used, the solvent or thinner used, the concentration of the solution, the temperature of the solution and the time between dissolving the resin and the determination; e) the density; f) the chlorine content and the me
40、thod used; g) any deviations from the procedures specified; h) the dates of the tests. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:01:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11668:2001 BSI 17 January 2002 3 Annex A (normative) Determination of chlorine content Decompositio
41、n by the Wickbold method A.1 Test apparatus General laboratory apparatus, and A.1.1 Wickbold combustion apparatus (See Figure A.1). A.1.2 Bottled hydrogen, oxygen and nitrogen (commercial quality). Bottles must have pressure reducing valves. A.1.3 Balance with 0,1 mg divisions. A.1.4 Gas burner A.1.
42、5 250 ml or 100 ml measuring flasks. A.2 Reagents A.2.1 Absorption solution Sodium hydroxide solution, c approximately 0,1 mol/l. Add 5 to 7 drops of 30 % (m/m) hydrogen peroxide solution to every litre of sodium hydroxide solution. A.2.2 Nitric acid, diluted 1 + 1. Mix 1 part by volume of nitric ac
43、id (?= 1,40 g/ml) with 1 part by volume of water. A.3 Procedure A.3.1 Safety The normal safety regulations concerning gas supply equipment must be observed, especially when handling hydrogen and oxygen. The ignition flame must always be adjusted in the presence of excess oxygen. A shield made from s
44、afety glass or fine wire-mesh must be placed in front of the burner and the combustion chamber. Special care must be taken not to allow hydrogen to enter the combustion chamber when the apparatus is being flushed with hydrogen. Spectacles with UV filters must be worn. A.3.2 Weigh the sample into a c
45、ombustion boat. The quantity must be such that at least 1,0 ml of silver nitrate solution is used during the subsequent argentometric titration. Heat the boat containing the sample strongly in the combustion tube with a flame or electric heat source. This is carried out first of all in the presence
46、of nitrogen, until all the volatile organic components have been evaporated (otherwise there is the danger of an explosion). Afterwards turn on the oxygen supply. The decomposition and combustion gases are drawn through the oxyhydrogen flame, burned and, after cooling, led into the absorption soluti
47、on. Refer to the manufacturers operating instructions for details of the Wickbold combustion apparatus. Place quartz or platinum wool before the burner head to prevent solid particles from passing through the oxyhydrogen flame. Ignite the sample by heating the left side of the combustion tube with a
48、 gas burner and slowly move the flame from left to right, i.e., against the flow of oxygen. Combustion is only complete when the combustion tube is free from soot. Afterwards, those parts of the apparatus that have been in contact with the combustion gases are rinsed out with water, collecting the w
49、ashings. If account has to be taken of possible chloride in the combustion residue, the combustion boat must be washed out with 1 + 1 nitric acid and rinsed with water (use a volume such that the solution has the correct pH-value for the titration). Collect the washings. Place the washings and the absorption solution in a volumetric flask and stabilize the temperature of the flask. Fill the flask to the mark with water. Then titrate an aliquot portion of this solution against silver nitrate solution to deter