EN ISO 23900-1-2018 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 1 General introduction.pdf

《EN ISO 23900-1-2018 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 1 General introduction.pdf》由会员分享，可在线阅读，更多相关《EN ISO 23900-1-2018 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 1 General introduction.pdf（12页珍藏版）》请在麦多课文档分享上搜索。

1、Pigments and extenders - Methods of dispersion and assessment of dispersibility in plasticsPart 1: General introductionBS EN ISO 23900-1:2018BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN ISO 2390

2、0-1:2018. It is identical to ISO 23900-1:2015. It supersedes BS ISO 23900-1:2015 and BS EN 13900-1:2003, which are withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/1, Pigments.A list of organizations represented on this committee can be obtained on request t

3、o its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 98297 2ICS 87.060.10Compliance with a British Stand

4、ard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate Text affected30 April 2018 This corrigendum renumbers BS ISO 23900-1:2015 as BS

5、 EN ISO 23900-1:2018BRITISH STANDARDBS EN ISO 23900-1:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 23900-1January 2018ICS 87.060.10 Supersedes EN 13900-1:2003EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre:

6、Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN ISO 23900-1:2018: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersPigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 1: General introduction (ISO

7、 23900-1:2015)Pigments et matires de charge - Mthodes de dispersion et valuation de laptitude la dispersion dans les plastiques - Partie 1: Gnralits (ISO 23900-1:2015)Pigmente und Fllstoffe - Dispergierverfahren und Beurteilung der Dispergierbarkeit in Kunststoffen - Teil 1: Allgemeine Einleitung (I

8、SO 23900-1:2015)This European Standard was approved by CEN on 4 January 2018.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 bibli

9、ographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 responsi

10、bility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republi

11、c of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 23900-1:2018 (E)European forewordTh

12、e text of ISO 23900-1:2015 has been prepared by Technical Committee ISO/TC 256 “Pigments, dyestuffs and extenders” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 23900-1:2018 by Technical Committee CEN/TC 298 “Pigments and extenders” the secretariat of

13、which is held by DIN.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 2018, and conflicting national standards shall be withdrawn at the latest by July 2018.Attention is drawn to the possibili

14、ty that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN 13900-1:2003.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the f

15、ollowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherland

16、s, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 23900-1:2015 has been approved by CEN as EN ISO 23900-1:2018 without any modification.2BS EN ISO 23900-1:2018ISO 23900-1:2015Foreword iv1 Scop

17、e . 12 Normative references 13 Terms and definitions . 14 Methods of dispersion and methods of assessment 24.1 Preliminary agreements . 24.2 Plastics materials 24.3 Methods of dispersion 24.4 Methods of assessment 25 Procedures 35.1 Determination of colouristic properties and ease of dispersion in p

18、lasticized polyvinyl chloride by two-roll milling . 35.2 Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll milling 35.3 Determination of colouristic properties and ease of dispersion of white pigments in polyethylene by two-roll m

19、illing . 35.4 Determination of dispersibility of pigments by filter pressure value test 35.5 Determination of dispersibility of pigments by film test . 36 Precision . 3 ISO 2015 All rights reserved iiiContents PageBS EN ISO 23900-1:2018ISO 23900-1:2015ForewordISO (the International Organization for

20、Standardization) is a worldwide federation of national standards 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 r

21、ight to be represented on that committee. International organizations, 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.The procedur

22、es used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial r

23、ules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights iden

24、tified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation

25、on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information.The committee responsible for this document is

26、ISO/TC 256, Pigments, dyestuffs and extenders.ISO 23900 consists of the following parts, under the general title Pigments and extenders Methods of dispersion and assessment of dispersibility in plastics: Part 1: General introduction Part 2: Determination of colouristic properties and ease of dispers

27、ion in plasticized polyvinyl chloride by two-roll milling Part 3: Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll milling Part 4: Determination of colouristic properties and ease of dispersion of white pigments in polyethylene b

28、y two-roll milling Part 5: Determination by filter pressure value test Part 6: Determination by film test iv ISO 2015 All rights reservedBS EN ISO 23900-1:2018Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics Part 1: General introduction1 ScopeThis part of I

29、SO 23900 provides an introduction to the various parts of ISO 23900 which describe methods for dispersing pigments and extenders in plastics materials in order to determine their dispersion characteristics and colouristic properties.Methods of assessing dispersion characteristics are described in th

30、e subsequent parts of ISO 23900.The various procedures described permit comparison to be made between similar pigments (for example between a test sample and an agreed reference pigment). The results provide an indication of relative dispersibility under practical conditions of use, provided that th

31、e test procedure and plastics material selected are appropriate.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the

32、 latest edition of the referenced document (including any amendments) applies.ISO 23900-2, Pigments and extenders Methods of dispersion and assessment of dispersibility in plastics Part 2: Determination of colouristic properties and ease of dispersion in plasticized polyvinyl chloride by two-roll mi

33、llingISO 23900-3, Pigments and extenders Methods of dispersion and assessment of dispersibility in plastics Part 3: Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll millingISO 23900-4, Pigments and extenders Methods of dispersion

34、 and assessment of dispersibility in plastics Part 4: Determination of colouristic properties and ease of dispersion of white pigments in polyethylene by two-roll millingISO 23900-5, Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics Part 5: Determination by

35、filter pressure value testISO 23900-6, Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics Part 6: Determination by film test3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.INTERNATIONAL STANDARD ISO 23900-1:

36、2015 ISO 2015 All rights reserved 1BS EN ISO 23900-1:2018ISO 23900-1:20153.1dispersibilityease and extent to which pigments or extenders can, by wetting, elimination of air and by mechanical disagglomeration, be distributed homogeneously in a plastics material under standardized conditions of proces

37、singNote 1 to entry: Dispersibility is generally assessed in terms of colour strength development, colouristic properties and frequency and size of agglomerates.3.2ease of dispersionDH measure of the rate at which or the degree to which a pigment or extender achieves a given level of dispersion when

38、 dispersed in a plastics material3.3aggregateprimary particles so joined together that they cannot be broken down during normal pigment/extender dispersing processes3.4agglomerateprimary particles or aggregates or a mixture of the two so joined together that they may be broken down during normal pig

39、ment/extender dispersing processes4 Methods of dispersion and methods of assessment4.1 Preliminary agreementsAgreement shall be reached between the interested parties on:a) the plastics material to be used;b) the method of dispersion;c) the assessment method;as all of these influence the results.4.2

40、 Plastics materialsA large variety of plastics materials is available with greatly differing properties. It is therefore not possible, in this part of ISO 23900, to stipulate which plastics material shall be used. In other parts of ISO 23900, general indications are given as to the relevance of the

41、procedures described to the most commonly used plastics materials.4.3 Methods of dispersionThere are many differences in the equipment and processing conditions used in practice for dispersing pigments and extenders in plastics materials. It is therefore not possible to specify a single procedure fo

42、r dispersing a pigment for testing purposes. In other parts of ISO 23900, general indications are given as to the relevance in practice of the procedure described.4.4 Methods of assessmentThere are different methods of characterizing dispersibility of pigments in plastics materials. These are specif

43、ied in the relevant parts of ISO 23900.2 ISO 2015 All rights reservedBS EN ISO 23900-1:2018ISO 23900-1:20155 Procedures5.1 Determination of colouristic properties and ease of dispersion in plasticized polyvinyl chloride by two-roll millingUsing a two-roll mill, the pigment under test is dispersed at

44、 (160 5) C in the basic compound. The milled sheet obtained in this way is then subjected to the higher shearing forces resulting from two-roll milling at (130 5) C. The resulting increase in colour strength is a measure of the ease of dispersion DHPVC-P.The detailed procedure is specified in ISO 23

45、900-2.5.2 Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll millingUsing a two-roll mill, the pigment under test is dispersed at an appropriate temperature in the polymer. The milled sheet obtained in this way is then subjected to

46、 the higher shearing forces resulting from two-roll milling at a narrower gap width. The resulting increase in colour strength is a measure of the ease of dispersion DHPE.The detailed procedure is specified in ISO 23900-3.5.3 Determination of colouristic properties and ease of dispersion of white pi

47、gments in polyethylene by two-roll millingUsing a two-roll mill, the pigment under test is dispersed at an appropriate temperature in the polymer. The milled sheet obtained in this way is then subjected to the higher shearing forces resulting from two-roll milling at a narrower gap width. The result

48、ing increase in tinting strength is a measure of the ease of dispersion DHPE.The detailed procedure is specified in ISO 23900-4.5.4 Determination of dispersibility of pigments by filter pressure value testThe increase in pressure when pressing a pigmented polymer of defined composition through a fil

49、ter pack in an extruder under defined conditions is a measure of the dispersibility of the pigment under test.The detailed procedure is specified in ISO 23900-5.5.5 Determination of dispersibility of pigments by film testThe assessment based on the size and frequency of agglomerates in a pigmented polymer film of defined composition and thickness is a measure of the dispersibility of the pigment under test. The method can be used both for transparent and non-transparent films.The detailed procedure is specified in ISO 239