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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 787-3:2001 Inco
2、rporating Corrigenda Nos. 1 and 2 The European Standard EN ISO 787-3:2000 has the status of a British Standard ICS 87.060.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot
3、extraction method Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committ
4、ee and comes into effect on 15 January 2001 BSI 5 October 2001 ISBN 0 580 36850 5 BS EN ISO 787-3:2001 Amendments issued since publication Amd. No.DateComments 13081 Corr. No. 1 March 2001 13422 Corr. No. 2 5 October 2001Incorporating annex ZA. National foreword This British Standard is the official
5、 English language version of EN ISO 787-3:2000 including corrigendum November 2000. It is identical with ISO 787-3:2000. It supersedes BS EN ISO 787-3:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/1, Pigments, which has the responsibility t
6、o: aid enquirers to understand 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 orga
7、nizations represented on this committee 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.
8、 The British Standards which 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 no
9、t purport to include 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 f
10、ront cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 4, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 0
11、3:00:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 787-3 October 2000 ICS 08.006.10; 87.060.10Supersedes EN ISO 787-3:1995 English version General methods of test for pigments and extenders - Part 3: Determination of matter soluble in water -
12、Hot extraction method (ISO 787-3:2000) Mthodes gnrales dessai des pigments et matires de charge - Partie 3: Dtermination des matires solubles dans leau - Mthode par extraction chaud (ISO 787- 3:2000) Allgemeine Prfverfahren fr Pigmente und Fllstoffe - Teil 3: Bestimmung der wasserlslichen Anteile -
13、Heiextraktionsverfahren (ISO 787-3:2000) This European Standard was approved by CEN on 1 October 2000. 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.
14、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 language made by translation und
15、er the responsibility of a CEN member into its own language and 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, Iceland, Ireland, Italy, Luxem
16、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any m
17、eans reserved worldwide for CEN national Members. Ref. No. EN ISO 787-3:2000 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI gaPe 2 I NESO 87-72:3000 CORRECTED 2001-04-11 Foreword The text of the International Standard ISO 787-3:2000 has b
18、een prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Committee CEN/TC 298 “Pigments and extenders“, the secretariat of which is held by DIN. This European Standard supersedes EN ISO 787-3:1995. This European Standard shall be given the status of a nati
19、onal standard, either by publication of an identical text or by endorsement, at the latest by April 2001, and conflicting national standards shall be withdrawn at the latest by April 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countr
20、ies 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. Endorsement notice The text of the International Stan
21、dard ISO 787-3:2000 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). EN ISO 7873:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+00:00 2006, Uncontrolled Copy, (c) B
22、SI Reference number ISO 787-3:2000(E) INTERNATIONAL STANDARD ISO 787-3 Second edition 2000-10-01 General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot extraction method Mthodes gnrales dessai des pigments et matires de charge Partie 3: Dtermination d
23、es matires solubles dans leau Mthode par extraction chaud EN ISO 7873:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii EN ISO 7873:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+00:00 2006, Uncontrolled Copy,
24、 (c) BSI ISO 7-783:(0002)E iii Foreword ISO (the International Organization for 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 intere
25、sted 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-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
26、Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication
27、 as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 787 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent
28、rights. International Standard ISO 787-3 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 2, Pigments and extenders. This second edition cancels and replaces the first edition (ISO 787-3:1979), which has been technically revised. ISO 787 consists of the following
29、parts, under the general title General methods of test for pigments and extenders: ?Part 1: Comparison of colour of pigments ?Part 2: Determination of matter volatile at 105 C ?Part 3: Determination of matter soluble in water Hot extraction method ?Part 4: Determination of acidity or alkalinity of t
30、he aqueous extract ?Part 5: Determination of oil absorption value ?Part 7: Determination of residue on sieve Water method Manual procedure ?Part 8: Determination of matter soluble in water Cold extraction method ?Part 9: Determination of pH value of an aqueous suspension ?Part 10: Determination of d
31、ensity Pyknometer method ?Part 11: Determination of tamped volume and apparent density after tamping ?Part 13: Determination of water-soluble sulphates, chlorides and nitrates ?Part 14: Determination of resistivity of aqueous extract ?Part 15: Comparison of resistance to light of coloured pigments o
32、f similar types ?Part 16: Determination of relative tinting strength (or equivalent colouring value) and colour on reduction of coloured pigments Visual comparison method EN ISO 7873:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO -
33、7873:(0002)E iv ?Part 17: Comparison of lightening power of white pigments ?Part 18: Determination of residue on sieve Mechanical flushing procedure ?Part 19: Determination of water-soluble nitrates (Salicylic acid method) ?Part 21: Comparison of heat stability of pigments using a stoving medium ?Pa
34、rt 22: Comparison of resistance to bleeding of pigments ?Part 23: Determination of density (using a centrifuge to remove entrained air) ?Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments Photometric methods ?Part 25: Comparison o
35、f the colour, in full-shade systems, of white, black and coloured pigments Colorimetric method ?Part 26: Determination of relative tinting strength and residual colour difference of colorants Weighted K/S value method EN ISO 7873:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 G
36、MT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDADR ISO -7873:(0002)E 1 General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot extraction method 1 Scope This part of ISO 787 specifies a general method of test for determining the percentag
37、e by mass of matter soluble in boiling water, in a sample of pigment or extender. ISO 787-8 specifies a method for determining the percentage by mass of matter soluble in water by cold extraction. For most pigments and extenders, these two test methods will give different results, and it is therefor
38、e essential to state clearly in a specification which method is to be used, and in the test report which method has been used. NOTE The general methods given in the various parts of ISO 787 are usually applicable to any pigment or extender. Thus only a cross-reference to the appropriate part of ISO
39、787 needs to be included in the International Standard giving the specification for that pigment or extender, indicating any detailed modification that may be needed in view of the special properties of the material in question. Only when the general methods are not applicable to a particular materi
40、al is a different method for determination of water-soluble matter to be specified. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 787. For dated references, subsequent amendments to, or rev
41、isions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 787 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative d
42、ocument referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 787-4:1981, General methods of test for pigments and extenders Part 4: Determination of acidity or alkalinity of the aqueous extract. ISO 787-8:2000, General methods of test for pig
43、ments and extenders Part 8: Determination of matter soluble in water Cold extraction method. ISO 1042:1998, Laboratory glassware One-mark volumetric flasks. ISO 15528:2000, Paints, varnishes and raw materials for paints and varnishes Sampling. 3 Reagent 3.1 Water, freshly double-distilled or de-ioni
44、zed, of pH 6 to 7. Other types of water may be used but only by agreement between the interested parties. 4 Apparatus 4.1 One-mark volumetric flask, of capacity 250 ml, complying with the requirements of ISO 1042. EN ISO 7873:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:24 GMT+0
45、0:00 2006, Uncontrolled Copy, (c) BSI ISO -7873:(0002)E 2 4.2 Membrane filter. Other types of filter may be used but only by agreement between the interested parties. 4.3 Evaporating dish, flat-bottomed, of glass, platinum, glazed porcelain or silica, dried to constant mass. 4.4 Water bath. 4.5 Oven
46、, capable of being maintained at (105?2) C. 4.6 Balance, accurate to 1 mg or better. 4.7 Desiccator, containing an efficient desiccant. 5 Sampling Take a representative sample of the material to be tested, as described in ISO 15528. 6 Procedure 6.1 General Carry out the determination in duplicate. 6
47、.2 Test portion Weigh, to the nearest 0,01 g, 2 g to 20 g of the sample (m0) into a beaker. The mass of the test portion used shall be chosen according to the type of material and the amount of water- soluble matter in the material. This is particularly important for materials that contain large amo
48、unts of matter soluble in water. In any case, the same test portion mass shall be taken for repeat tests or for tests carried out in several different laboratories. 6.3 Determination Moisten the test portion in the beaker with a few millilitres of water (3.1). If the material does not disperse easil
49、y in water, use a wetting agent. In the case of materials which are not soluble in ethanol, an appropriate volume of ethanol may be added; in the case of pigments soluble in ethanol, use a non- ionic wetting agent such as 10 ml of a 0,01 % solution of an ethylene oxide condensate. If the wetting agent is non- volatile under the conditions of test, an appropriate correction derived from a blank test shall be made. Add 200 ml of boiling water (3.1) and stir. Unless a diff