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1、BRITISH STANDARD BS EN ISO 8780-1:1995 Incorporating Amendment No. 1 Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 1: Introduction The European Standard EN ISO 8780-1:1995 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na
2、, Mon Nov 20 02:56:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 8780-1:1995 This British Standard, having been prepared under the direction of the Pigments, Paints and Varnishes Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 3
3、0 April 1991 BSI 04-2000 The following BSI references relate to the work on this standard: Committee reference PVC/1 Draft for comment 86/52353 DC ISBN 0 580 19534 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Pigments, Paints and Va
4、rnishes Standards Policy Committee (PVC/-) to Technical Committee PVC/1, upon which the following bodies were represented: Aluminium Powder and Paste Association British Cement Association British Railways Board Chemical Industries Association Oil and Colour Chemists Association Paintmakers Associat
5、ion of Great Britain Ltd Titanium Pigment Manufacturers Technical Committee Zinc Development Association Amendments issued since publication Amd. No.DateComments 8533August 1995 Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:56:50 GMT+00:00 2006, Unco
6、ntrolled Copy, (c) BSI BS EN ISO 8780-1:1995 BSI 04-2000i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN ISO 8780-13 Publication(s) referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:56:50 GMT+00:00 2006, Uncontroll
7、ed Copy, (c) BSI BS EN ISO 8780-1:1995 ii BSI 04-2000 National foreword This Part of BS 3483 has been prepared under the direction of the Pigments, Paints and Varnishes Standards Policy Committee. It is identical with ISO 8780-1:1990 “Pigments and extenders Methods of dispersion for assessment of di
8、spersion characteristics Part 1: Introduction”, published by the International Organization for Standardization (ISO). In 1994 the European Committee for Standardization (CEN) accepted ISO 8780-2:1990 as European Standard EN ISO 8780-1:1995. As a consequence of implementing the European Standard thi
9、s British Standard is renumbered BS EN ISO 8780-1 and any reference to BS 3483-D1 should be read as a reference to BS EN ISO 8780-1. 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. Co
10、mpliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard BS 3483 Methods for testing pigments for paints ISO 8780-2:1990Part D2:1991 Method of dispersion for assessment of dispersion characterist
11、ics using an oscillatory shaking machine (Identical) ISO 8780-3:1990Part D3:1991 Method of dispersion for assessment of dispersion characteristics using a high-speed impeller mill (Identical) ISO 8780-4:1990Part D4:1991 Method of dispersion for assessment of dispersion characteristics using a bead m
12、ill (Identical) ISO 8780-5:1990Part D5:1991 Method of dispersion for assessment of dispersion characteristics using an automatic muller (Identical) ISO 8780-6:1990Part D6:1991 Method of dispersion for assessment of dispersion characteristics using a triple-roll mill (Identical) ISO 8781-1:1990Part E
13、1:1991 Assessment of dispersion characteristics from the change in tinting strength of coloured pigments (Identical) ISO 8781-2:1990Part E2:1991 Assessment of dispersion characteristics from the change in fineness of grind (Identical) ISO 8781-3:1990Part E3:1991 Assessment of dispersion characterist
14、ics from the change in gloss (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO 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 incorpor
15、ated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:56:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8780-1 March 1995 ICS 87.060.10 Descriptors: Paints, pigm
16、ents, extenders, dispersibility, dispersing English version Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 1: Introduction (ISO 8780-1:1990) Pigments et matieres de charge Mthodes de dispersion pour valuer la dispersibilit Partie 1: Introduction (ISO 8
17、780-1:1990) Pigmente und Fllstoffe Dispergierverfahren zur Beurteilung des Dispergierverhaltens Teil 1: Einleitung (ISO 8780-1:1990) This European Standard was approved by CEN on 1994-10-17. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
18、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 application to the Central Secretariat or to any CEN member. This European Standard exists in three official v
19、ersions (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 same status as the official versions. CEN members are the national standards bodies of Austria, Belgiu
20、m, Denmark, Finland, France, Germany, Greece, Iceland, 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 Central Secretariat: rue de Stassa
21、rt 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN ISO 8780-1:1995 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:56:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 8780-
22、1:1995 BSI 04-2000 2 Foreword This European Standard has been taken over by the Technical Committee CEN/TC 298, Pigments and extenders, from the work of ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO). This European Standard shall be given the status of a
23、 national standard, either by publication of an identical text or by endorsement, at the latest by September 1995, and conflicting national standards shall be withdrawn at the latest by September 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement
24、this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. NOTENormative references to international publications are listed in Annex ZA (normative). Contents
25、Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Methods of dispersion and methods of assessment4 4.1Preliminary agreements4 4.2Binder systems4 4.3Methods of dispersion4 4.4Methods of assessment4 5Precision4 Annex ZA (normative) Normative references to international publications with the
26、ir relevant European publications5 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:56:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 8780-1:1995 BSI 04-20003 1 Scope This part of ISO 8780 gives an introduction to the various methods, described in subsequent parts of ISO 8780, for dis
27、persing pigments and/or extenders1) in a particular binder system in order to assess the dispersion characteristics. Methods for assessing the characteristics of the dispersion so produced are described in ISO 8781 The various procedures permit comparisons between similar pigments (for example betwe
28、en a test pigment and an agreed reference pigment). The results make it possible to draw inferences about the dispersion that may be obtained under manufacturing conditions, but only if the dispersion conditions for the test are appropriate. 2 Normative references The following standards contain pro
29、visions which, through reference in this text, constitute provisions of this part of ISO 8780. 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 8780 are encouraged to investigate the possibility
30、of applying the most recent editions or the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 8780-2:1990, Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 2: Dispersion using an oscillat
31、ory shaking machine. ISO 8780-3:1990, Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 3: Dispersion using a high-speed impeller mill. ISO 8780-4:1990, Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 4: Disp
32、ersion using a bead mill. ISO 8780-5:1990, Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 5: Dispersion using an automatic muller. ISO 8780-6:1990, Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 6: Disper
33、sion using a triple-roll mill. ISO 8781-1:1990, Pigments and extenders Methods of assessment of dispersion characteristics Part 1: Assessment from the change in tinting strength of coloured pigments. ISO 8781-2:1990, Pigments and extenders Methods of assessment of dispersion characteristics Part 2:
34、Assessment from the change in fineness of grind. ISO 8781-3:1990, Pigments and extenders Methods of assessment of dispersion characteristics Part 3: Assessment from the change in gloss. 3 Definitions For the purposes of ISO 8780 and ISO 8781, the following definitions apply. 3.1 mill base mixture of
35、 binders, solvents, pigments and additives 3.2 level of dispersion the extent to which pigment particles have been separated and stabilized by milling in a binder system under defined conditions 3.3 dispersibility the level of dispersion (see 3.2) when it has become constant under the defined condit
36、ions NOTE 1The dispersibility of a pigment depends on the binder system in which it is dispersed, the method of dispersion and the mill base composition. 3.4 ease of dispersion a measure of the rate at which a pigment achieves a given level of dispersion during its milling in a binder system NOTE 2T
37、he ease of dispersion may be assessed in terms of, for example, tinting strength (see ISO 8781-1), fineness of grind (see ISO 8781-2), gloss (see ISO 8781-3). 3.5 aggregate an assemblage of particles so joined together that it cannot be broken down during normal paint or ink-making processes 3.6 agg
38、lomerate an assemblage of primary particles, aggregates or a mixture of the two which may be broken down during normal paint or ink-making processes 1) For subsequent reference in all parts of ISO 8780 and ISO 8781 the word “pigment” only is used. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov
39、20 02:56:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 8780-1:1995 4 BSI 04-2000 4 Methods of dispersion and methods of assessment 4.1 Preliminary agreements Agreement between the interested parties has to be reached on a) the binder system to be used (see 4.2), b) the method or methods of di
40、spersion (see 4.3), c) the method or methods of assessment (see 4.4), because all of these will affect the results. 4.2 Binder systems In view of the multiplicity of binder systems with widely varying properties that are encountered in practice, it is not possible to specify in this part of ISO 8780
41、 the binder system(s) to be used. However, depending on the method of dispersion selected, advice of a general nature is given in the other parts of ISO 8780 concerning the properties of the binder system 4.3 Methods of dispersion Many different types of machinery and milling conditions are used in
42、practice for dispersing pigments. Thus, it is not possible to specify a single method for producing a dispersion for test purposes. The other parts of ISO 8780 describe methods of dispersion of pigments under conditions that can be related to the manufacturing method. 4.4 Methods of assessment Sever
43、al methods are available for assessing the dispersion characteristics of a pigment in a binder system. These methods are described in ISO 8781. An appropriate method or methods shall be selected for a particular dispersion. 5 Precision Statements on precision of the methods of assessment, given in t
44、he various parts of ISO 8781, are not able to be given due to the dependence of the results on the choice of the binder system and the method of dispersion Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:56:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 8780-1:1995 BSI 04-20005 Annex
45、 ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publi
46、cations are listed hereafter. For dated references, subsequent amendments to or revisions of 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 applies (including am
47、endments). PublicationYearTitleENYear ISO 8780-21990Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 2: Dispersion using an oscillatory shaking machine EN ISO 8780-21995 ISO 8780-31990Pigments and extenders Methods of dispersion for assessment of dispers
48、ion characteristics Part 3: Dispersion using a high-speed impeller mill EN ISO 8780-31995 ISO 8780-41990Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 4: Dispersion using a bead mill EN ISO 8780-41995 ISO 8780-51990Pigments and extenders Methods of dis
49、persion for assessment of dispersion characteristics Part 5: Dispersion using an automatic muller EN ISO 8780-51995 ISO 8780-61990Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 6: Dispersion using a triple-roll mill EN ISO 8780-61995 ISO 8781-11990Pigments and extenders Methods of assessment of dispersion characteristics Part 1: Assessment from the change in tinting strength of coloured pigments EN ISO 8781-11995 ISO 8781-21990Pigments and e