1、Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics Part 1. Introduction The European Standard EN Is0 87W1: 1995 has the status of a British Standard BS EN IS0 8780-1 : 1995 CEN EN*IS0*8780- L 95 3404589 OLLLL57 684 W BS 3483 : Part D1: 1991 National foreword
2、This Part of BS 3483 has been prepared under the direction of the Pigments, Paints and Varnishes Standards Policy Committee. It is identical with IS0 8780- 1 : 1990 Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 1 : Introduction, published by the I
3、nternational Organization for Standardization (EO). In 1994 the European Committee for Standarbon (CEN) accepted Is0 8780-2 : 1990 as European Stanard EN Is0 8780-1 : 1995. As a consequence of implementing the European Standard this British Standard is renumbered BS ENISO87Wl and any reference to BS
4、3483: MD1 should be read as a reference to ES EN Is0 8-i. . ._ . Cross-references International standard 180 8780-6 l!190 IS0 8780-4 : IS0 8780-5 : 900 990 IS0 8781-1 1990 IS0 8781-6 : 1990 IS0 8781-3 : 1990 Corresponding British Standard BS 3483 Methods for testing pigments for paints Part D2 : 199
5、1 Method of dispeision for assessrnent of dispersion chaiacterist ics using an oscillatory shaking niac h ine (Identical) Part D3 : 1991 Mothod of dispersion for assessinent of dispersion characteristics using a high-speed impeller mill (Identical) Part D4 : i991 Method of dispersion for assessment
6、of dispersion characteristics using a bead mill (Identicai) Part D5 : 199 1 Method of disperjion for assessment. of dispersion characteristics using an automatic muller (Identical) Part D6 : 199 1 Method of dispersion foi- assessment of dispersion characteristics using a triple-roll mill (Identical)
7、 Part El : 1991 Assessment of dispersioii characteristics from the change in tinting st,rength of colorireti pigments (Identical) Part E2 : 1991 Assessment of dispersion characteristics from the change in fineness of grind (Identical) .- lart E3 : I991 Assessmcnt of dispersion chaiacteristics from t
8、he change in gloss (Identical) Compliance with a British Standard does not of itself confer immunity from legal obligations. CEN EN*IS0*8780- 1 95 El 3404589 OLL1158 510 A EUROPEANsrANDAqD NORME EUR0pEE“E EXJROPBNORM E3 Lso 87W1 March 1% ICs 87.060.10 Descriptors: paints, pigmenets, extenders, dispe
9、rsibiiay, dispersing English version pigments and extenders - Methods of dspeBion for assessment of chpersion c-ristics- Part 1: Introduction (B 8780-1 : 1990) Pigments et maieres de charge - Mthodes de dispersion pour valuer la dispeisibiiit - Partie 1: Introduction (IS0 8780-1 : 1990) Pigmente und
10、 FUllstoffe - hspergiewerfahn zur Beurteilung des Dispergierverhaltens - Teil 1: Einleitung (Is0 87W1: 1990) This European Sandard was approved by CEN on 1994-117. CEN members are bound to comply with the CEWCENELEC lntemai Regulations which stipulate the conditions for giving this European Standard
11、 the status of a donal standard without any alteraton. Uptodate lists and bibhographid references concerning such national standards may be obtained on application to the Centrai Secretariat or to any CEN member. This European Standard exists in three officiai versions (English, French, German). A v
12、ersion in any other language made by transiation under the responsibility of a CEN member into its own language and notined to the Central Secretariat has the same status as the officiai versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, G
13、reece, 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 Stassart 36, B-1050 Brussels O 1995 AU righs
14、of reproduction and communication in any form and by any means reserved in ail countries to CEN and its members Ref. No. EN IS0 8780-1 : 1995 E A Page2 EN IS0 8780-1 : 1995 Foreword This European Standard has been taken over by the Technical Committee CEN/M= 298, Pigments and extenders, bm the work
15、of ISoC 35, Paints and varnishes, of the intemational Organization for Standardization (ED). 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 September 1995, and conflicting national standards shaU
16、 be withdrawn at the latest by September 1995. According to the CENKENELEC internal Regulations, the following countries are bound to implement this European Siandad Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal Spain,
17、 Sweden, Switzerland and United Kingdom. NOTE. Nonnative references to international publications are iiste in annex ZA (normative). _ INTERNATIONAL STANDARD IS0 8780-1 :199O(E) Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 1: Introduction 1 Scope
18、 This pari of IS0 8780 gives an ritt-odiiction lo the various methods. described in subsequent paris of IS0 8780, for dispersing pigments andlor extenders in a particular binder system in order to assess the dispersion characteristics Methods for assessing the ctiaracterictics of the dispersion so p
19、roduced are described in IS0 8781 The various procedures permit comparisons be- tween similar pigments (for example between a test pigment and an agreed reference pigment) The re- sults make it possible to draw inferences about the dispersion that may be obtained under maniifactur- ing conditions. b
20、iit only if the dispersion conditions for the test are appropriate. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this pari of IS0 8780. At the lime of priblication, lhe editions indicated were valid All standards ar
21、e subject to revision. and parlies to agreements based on tiiic part of is0 8780 are encouraged to investi- gate the possibility of applying the most recent edi- tions of lhe standards indicated below Members of IEC and IS0 maintain registers of currently valid International Standards IC0 8780-2.199
22、0, Pigments and extenders Methods of dispwsiori for assessmenl of dispersion cliarac- ferisiics Part 2- Dispel-sion cising an oscillatory shaking machine. IS0 8780-3:1990, Pigmenls and extenders - Methods o/ dispersion lor assessment o dispersion diai-ar twisl/cs - Part 3. Dispersioii rising a high-
23、sperl iniDcllcr /ni!/ IS0 8780-4 1990, Pigments and extenders - Methods o dispersion /or assessment o dispersion charac- teristics - Parf 4. Dispersion nsing a head mill IS0 8780-5-1 990. Pigments and extenders - Methods of dispersion for assess/i7enl o dispersion cliarac- teristics - Part 5. Disper
24、sion using an aufornatic mriller IS0 8780-6.1990, Pigments and extenders - Methodx o/ dispersion for assessment o/ dispersion cliarac:- teristics - P art 6 Dispersion using a triple-roll mill IS0 8781-1:1990. Pigments and extenders .- Methods of assessment of dispersion characteristics Part I: Asses
25、snient from the change iri linfirig strengfi, of coloured pignierits. IS0 8781-2 1990. Pigments ar)d extenders Methods o assessnierit of dispersion ciaracterisiics Part 2: Assessrrienf from the change in fineiiess of grind IS0 8781-3-1990. Pigments and xferidos o assessment of disper.siori cliaractc
26、risiics Part 3 Asscssnient from /lie cliarige in gloss MeliotJn 3 Definitions For lhe purposes of IS0 8780 and IS0 8781, the fol- lowing derinilions apply 1) For cubcequmt reference in ail parts of IS0 8780 and IS0 9781 the word “pigment“ only is used 1 CEN EN*ISO*87O- I 95 3404589 OLLLLbL 005 m.- I
27、S0 8780-1:1990(E) 3.1 mill base: Mixture of binders;. solvents, pig menls and additives 3.2 level of dispersion: The extent to which pigment particles have been separated and stabilized by milling in a bisder system under defined conditions 3.3 dispersibility: The level of dispersion (see 3.2) when
28、it lias become constant under the defined conditions NOTE 1 The dispersibility of a pigment depends on the binder system in which it is dispersed. the method of dis- persion and the mill base composilion 3.4 ease of dispersion: A measure of the rate at which a pigment achieves a given level of dispe
29、rsion during ils milling in a binder systeni NOTE 2 The ease of dispersion may be assessed in terms of. for example, tinting strengh (see IS0 8781-1). fineness of grind (see IS0 8781-2) - gloss (see IS0 8781-3) 3.5 aggregate: An assemblage of parficles 40 pined iogether that it canriot be broken dow
30、r! durinc; normal paint or ink-making processes 3.6 agglomerate: An assemblage of primary parti- cles. aggregates or a mixtiire of the two which may be broken down during normal paint or ink-making processes. 4 assessment Methods of dispersion and methods of 4.1 Preliminary agreements Agreement betw
31、een the interested parties has to be reached on (- ” b) lhe method or methods of dispersion (see 4 3). c) ihe method or methods of assessrneni (see 4 4), because all of these will affect the results 4.2 Binder systenis In view of the niiiltipiicity of binder systems with widely varying properties th
32、at are encountered in practice, it is not possible to specify in this pari of IS0 8780 the binder system(s) to be used However. depending on the method of dispersion selected, advice of a general nalure is given in the other pai-ts of IS0 8780 concerning tie properties of the binder system 4.3 Metho
33、ds of dispersion Many different types of machinery and milling con- ditions are used in practice for dispersing pigments TIio5. il is not possible to specify a single method for producing a dispersion for tpst purposes The other parts of IS0 8780 describe inethods of dispersion of pigments under con
34、ditions tliat can be related to lhe ni 2 nu fact ur in g mel hod . 4.4 Methods of assessment Severn1 methods are available for assessing the dispersion characteristics of a pigment in a binder system These methods are descried in IS0 8781 An appropriate method cr methods shall be selected for a part
35、icular dispersion 5 Precision Statements on precision of the methods of assfss- ment. qiven in the various parts of IS0 8781. are 1101 able to be given due io lhe dependpnce of the ie- siilis on the choice of the binder system and lhe method of dispersiori a) the binder syslem to be used (see 4 2).
36、2 CEN EN*IS0*8780- 1 7.5 E“3 3404589 0111162 T41 Page 3 EN Is0 8780-1 : 1995 Annex 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
37、normative references are cited at the appropriate piaces in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications appiy to this European standard oniy when incorporated in it by amendment or revisim For undated re
38、ferences the latest eition of the publication referred to applies (iicludmg amendments). Publication Is0 87W2 Is0 8780-3 Is0 8780-4 Is0 8780-5 Is0 87804 IS0 8781-1 IS0 8781-2 Is0 87813 Year 1990 1990 1990 1990 1990 1990 1990 1990 Title pignats and eztmen- Methods qfdispmm for Part 2: Dispersum using
39、 an oxidmy sung machine FigmentsandQtenders-Methodsofd.ispersionfm Part 3: DisperJum . using a high-speed impeller miil pignents and aterwkm - Methods of dispersion far Part 4: Dispersum . zlsingabeadmi pigments and atendem- Methods of dispersion for Part 5: DisperJum * usinganautomaticmuller pigmen
40、ts and txtmdms - MeW of dispersion for Part 6: Dispemm . usingatripe-rdlrnul Figments and w3makrs- Methods of assessment of d.ispersion characteristics Part 1: Assesmzent_fwm the change in tinting strength of colouredpigmats pigments and amdem - Methods of assessment of Part 2: Assessmat fknn the ch
41、ange in fineness of grind pigments and atendem- Methots of aSSesSmRnt of dispersion chameristics Part 3: Assessment fknn the change in gioss Of dispersion characteristics - f d.ispersiOn CharaCteristiCS - messment Of dispersion ChaWWtS - W-t Of dispersion CharaCtenstkS - Wmt Of d.6spersion CharaCten
42、ktiCS - d.ispersiOn. cha7acteristh- EN Year ENISO87W2 1995 ENIS087803 1995 ENIS087804 1995 ENISO8780-5 1995 ENISO87W 1995 EN IS0 8781-1 1995 EN IS0 8781-2 1995 EN Lso 87813 1995 CEN ENxIS088780- II 75 E4 3404587 ULLLL63 788 BS 3483 : Part DI : 1991 Publication(s) referred to See national foreword. c
43、 BS 3483 : Part DI : 1991 IS0 8780-1 : 1990 CEN EN*ISO*8780- L 75 Ed 3404589 0111164 814 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Pigments, Paints and Varnishes Standards Policy Committee (PVC/-) to Technical Committee PVCI 1, upo
44、n which the following bodies were represented: Aluminium Powder and Paste Association Ihitish Cement Association ritish Railways Board Chemical Industries Association Oil and Colour Chemists Association Paintmakers Association of Great Britain Ltd Titanium Pigment Manufacturers Technical Committee Z
45、inc Development Association Amendments issued since publication _. I MI, 2 Park Street. Londoii WIA 2BS BSI, Linford Wood, Miltoii Keynes MK14 BLE lY(. I f CEN EN%IS0*8780- L 95 W 3404587 OLLLLb.5 750 -8633 Amendment No. 1 published and effective from 15 August 1995 to BS 3483 : Part D1: 1991 Method
46、s for testing pigments for paints Part D1. Methods of dispersion for assessment of dispersion characteristics (Introduction) NOTE. The European Committee for Standardintion (cm has accepted Is0 8780-1 : l!MI as a European standard desigwted as EN IS0 8780-1 : 1995. This amendment implements EN Is0 E
47、N 8780-1 : 1995 as a British Standard in the BS EN series. Implementation of European Stanard Front page Delete the outside front page and substitute the aacheci. AMD 863WAugmt 1995 _-_- National foreword At the end of paragraph 1 insert the following paragraph. In 1994 the European commiaee for sta
48、ndardization (CEN) accepted Is0 8780-2 : 1990 as European Stanard EN Is0 8780-1 : 1995. As a consequence of implementing the European Stanard this British Standard is mumbered BEN Is0 87W1 and any reference to BS3483: Part D1 should be read as a reference to BS EN IS0 8780-1. AMD 8633/Aognst 1996 _-
49、_-_- EN title page and foreword Immediately afta the nationai foreword, insert the attached EN title page and foreword. AMD 863WAugast 1996 _- New annex ZA 9508 Product code 00541963 BRITISH STANDARD y CEN EN*ISOX8780- L 95 E3 3404589 OLLLL66 697 Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics Part 1. Introduction The European S
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