1、BRITISH STANDARD BS EN ISO 3262-6:1998 Extenders for paints Specifications and methods of test Part 6: Precipitated calcium carbonate The European Standard EN ISO 3262-6:1998 has the status of a British Standard ICS 87.060.10BSENISO3262-6:1998 This British Standard, having been prepared under the di
2、rectionof the Sector Board forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15 October 1998 BSI 04-1998 ISBN 0 580 30498 1 National foreword This British Standard is the English language version of EN ISO 3262-6:1998. It is identical with ISO
3、 3262-6:1998. Together with the other Parts of BS EN ISO 3262, it will supersede BS 1795:1976 which is declared obsolescent. The UK participation in its preparation was entrusted to Technical Committee STI/1, Pigments, which has the responsibility to: aid enquirers to understand the text; present to
4、 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 organizations represented on this committee can be obta
5、ined 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. The British Standards which implement internationa
6、l 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. A British Standard does not purport to include all
7、 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 front cover, pages i and
8、ii, the EN ISO title page, page 2, the ISO title page, page ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issu
9、ed since publication Amd. No. Date CommentsBSENISO3262-6:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword ii Text of ISO 3262-6 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3262-6 July 1998 ICS 87.060.10 Descriptors: See ISO document Engl
10、ish version Extenders for paints Specifications and methods of test Part 6: Precipitated calcium carbonate (ISO 3262-6:1998) Matires de charge pour peintures Spcifications et mthodes dessai Partie 6: Carbonate de calcium prcipit (ISO 3262-6:1998) Fllstoffe fr Beschichtungsstoffe Anforderungen und Pr
11、fverfahren Teil 6: Geflltes Calciumcarbonat (ISO 3262-6:1998) This European Standard was approved by CEN on 21 June 1998. 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 witho
12、ut 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 versions (English, French, German). A version in any other language ma
13、de 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, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland,
14、 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 1998 CEN All rights of exploita
15、tion in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3262-6:1998 EENISO3262-6:1998 BSI 04-1999 2 Foreword The text of the International Standard ISO 3262-6:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with T
16、echnical Committee CEN/TC 298 “Pigments and extenders”, the secretariat of 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 January 1999, and conflicting national standards sh
17、all be withdrawn at the latest by January 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Irela
18、nd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 3262-6:1998 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Stand
19、ards are listed in Annex ZA (normative). Contents Page Foreword 2 1 Scope 1 2 Normative references 1 3 Definition 1 4 Requirements and test methods 1 5 Sampling 2 6 Determination of matter insoluble in hydrochloric acid 2 7 Test report 2 Annex ZA (normative) Normative references to international pub
20、lications with their relevant European publications Inside back cover Table 1 Essential requirements 1 Table 2 Conditional requirements 2ENISO3262-6:1998 ii BSI 04-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO membe
21、r 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 organizations, governmenta
22、l 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 circulated to the membe
23、r bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO 3262-6 was prepared by Technical Committee ISO/TC35, Paints and varnishes, Subcommittee SC2, Pigments and extenders. Together with the other
24、parts (see below), this part of ISO3262 cancels and replaces ISO3262:1975, which has been technically revised. Part1 comprises the definition of the term extender and a number of test methods that are applicable to most extenders, whilst part2 and the following parts specify requirements and, where
25、appropriate, particular test methods for individual extenders. At present, the following parts of ISO3262 are published or in preparation, under the general title Extenders for paints Specifications and methods of test: Part 1: Introduction and general test methods; Part 2: Barytes (natural barium s
26、ulfate); Part 3: Blanc fixe; Part 4: Whiting; Part 5: Natural crystalline calcium carbonate; Part 6: Precipitated calcium carbonate; Part 7: Dolomite; Part 8: Natural clay; Part 9: Calcined clay; Part 10: Natural talc/chlorite in lamellar form; Part 11: Natural talc, in lamellar form, containing car
27、bonates; Part 12: Muscovite-type mica; Part 13: Natural quartz (ground); Part 14: Cristobalite; Part 15: Vitreous silica; Part 16: Aluminium hydroxides; Part 17: Precipitated calcium silicate; Part 18: Precipitated sodium aluminium silicate; Part 19: Precipitated silica; Part 20: Fumed silica; Part
28、21: Silica sand (unground natural quartz); Part 22: Diatomaceous earth (kieselguhr). Descriptors: Paints, extenders, calcium carbonates, specifications, materials specifications, tests.ENISO3262-6:1998 BSI 04-1999 1 1 Scope This part of ISO 3262 specifies requirements and corresponding methods of te
29、st for precipitated calcium carbonate. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 3262. At the time of publication, the editions indicated were valid. All standards are subject to revision, and pa
30、rties to agreements based on this part of ISO3262 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 currently valid International Standards. ISO 787-2:1981, General methods of test for pig
31、ments and extenders Part 2: Determination of matter volatile at 105C. ISO 787-3:1979, General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot extraction method. ISO 787-8:1979, General methods of test for pigments and extenders Part 8: Determination of
32、 matter soluble in water Cold extraction method. ISO 787-9:1981, General methods of test for pigments and extenders Part 9: Determination of pH value of an aqueous suspension. ISO 787-14:1973, General methods of test for pigments Part 14: Determination of resistivity of aqueous extract. ISO 787-18:1
33、983, General methods of test for pigments and extenders Part 18: Determination of residue on sieve Mechanical flushing procedure. ISO 842:1984, Raw materials for paints and varnishes Sampling. ISO 3262-1:1997, Extenders for paints Specifications and methods of test Part 1: Introduction and general t
34、est methods. ISO 3696:1987, Water for analytical laboratory use Specification and test methods. 3 Definition For the purposes of this part of ISO 3262, the following definition applies: 3.1 precipitated calcium carbonate a synthetic calcium carbonate, consisting of trigonal crystals (like those of c
35、alcite) or rhombic bipyramidal crystals (like those of aragonite) 4 Requirements and test methods For precipitated calcium carbonate complying with this part of ISO3262, the essential requirements are specified in Table 1 and the conditional requirements are listed in Table 2. Table 1 Essential requ
36、irements Characteristic Unit Requirement Test method CaCO 3content, min. % (m/m) 98 ISO 3262-1 Residue on 45 4m sieve, max. % (m/m) 0,1 ISO 787-18 Matter volatile at 105 C, max. % (m/m) 1,0 ISO 787-2 Loss on ignition, max. % (m/m) 46 a ISO 3262-1 Matter soluble in water, max. % (m/m) 0,2 ISO 787-3 o
37、r ISO 787-8 b pH value of aqueous suspension 9 to 10 a ISO 787-9 Matter insoluble in hydrochloric acid, max. % (m/m) 0,2 Seeclause 6 a These values do not take account of the effect on the result of any surface treatment. b Method to be agreed between the interested parties.ENISO3262-6:1998 2 BSI 04
38、-1999 Table 2 Conditional requirements 5 Sampling Take a representative sample of the product to be tested, as described in ISO 842. 6 Determination of matter insoluble in hydrochloric acid 6.1 Reagents During the analysis, use only reagents of recognized analytical grade and only water of at least
39、grade 3 purity as defined in ISO 3696. 6.1.1 Hydrochloric acid, approximately 25 % (m/m), 1,125 g/ml. 6.2 Apparatus Use ordinary laboratory apparatus and glassware, together with the following: 6.2.1 Membrane filter, pore size 0,8 4m. 6.2.2 Air oven, capable of being maintained at (105 2) C. 6.3 Pro
40、cedure Weigh, to the nearest 0,1mg, approximately 10g (m o ) of the test sample into a600ml beaker. Add50ml of water and, carefully, approximately50ml of hydrochloric acid (6.1.1). Cover the beaker with a watch glass and boil the solution for15min. Dry the membrane filter (6.2.1) in the air oven(6.2
41、.2) at (105 2)C to constant mass, cool in a desiccator to room temperature and weigh it to the nearest0,1mg(m 1 ). Then filter the solution through it. Wash the residue on the filter eight times with hot distilled water. Dry the residue on the filter in the air oven at (105 2)C for about1h. Allow to
42、 cool in a desiccator to room temperature and weigh to the nearest0,1mg(m 2 ). 6.4 Expression of results Calculate the matter insoluble in hydrochloric acid w(Ml HCl ), expressed as a percentage by mass, using the equation where m 0is the mass, in grams, of the test portion; m 1is the mass, in grams
43、, of the dried membrane filter; m 2is the mass, in grams, of the dried membrane filter plus the residue. 7 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 part of ISO 3262 (ISO 3262-6); c) t
44、he results of the tests and whether or not the product complies with the relevant specification limits; d) any deviation from the test methods specified; e) the dates of the tests. Characteristic Unit Requirement Test method Particle size distribution (instrumental method) % (m/m) To be agreed betwe
45、en the interested parties a Colour ISO 3262-1 Lightness To be agreed between the interested parties To be agreed between the interested parties b Resistivity of aqueous extract 7m ISO 787-14 a A general description of a sedimentation method using X-ray absorption is given in EN 725-5:1996, Advanced
46、technical ceramics Methods of test for ceramic powders Part 5: Determination of the particle size distribution. b Test method in preparation.ENISO3262-6:1998 BSI 04-1999 Annex ZA (normative) Normative references to international publications with their relevant European publications This European St
47、andard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply
48、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. Publication Year Title EN Year ISO 787-2 1981 General methods of test for pigments and extenders Part 2: Determination of matter volatile
49、 at 105 degrees C EN ISO 787-2 1995 ISO 787-3 1979 General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot extraction method EN ISO 787-3 1995 ISO 787-8 1979 General methods of test for pigments and extenders Part 8: Determination of matter soluble in water Cold extraction EN ISO 787-8 1995 ISO 787-9 1981 General methods of test for pigments and extenders Part 9: Determination of pH valu
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