1、BRITISH STANDARD BS EN ISO 3262-7:1998 Extenders for paints Specifications and methods of test Part 7: Dolomite The European Standard EN ISO 3262-7:1998 has the status of a British Standard ICS 87.060.10BSEN ISO 3262-7:1998 This British Standard, having been prepared under the directionof the Sector
2、 Board forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15October 1998 BSI 04-1999 ISBN 0 580 30499 X National foreword This British Standard is the English language version of EN ISO 3262-7:1998. It is identical with ISO 3262-7:1998. Togethe
3、r 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 the responsible inte
4、rnational/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 obtained on request to it
5、s 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 international or European publica
6、tions 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 the necessary provis
7、ions 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 ii, theEN ISO title p
8、age, page 2, the ISO title page, pages ii to iv, pages 1 and 2, aninside 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 issued since publica
9、tion Amd. No. Date CommentsBSEN ISO 3262-7:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword iii Text of ISO 3262-7 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3262-7 July 1998 ICS 87.060.10 Descriptors: See ISO document English version E
10、xtenders for paints Specifications and methods of test Part 7: Dolomite (ISO 3262-7:1998) Matires de charge pour peintures Spcifications et mthodes dessai Partie 7: Dolomite (ISO 3262-7:1998) Fllstoffe fr Beschichtungsstoffe Anforderungen und Prfverfahren Teil 7: Dolomit (ISO 3262-7:1998) This Europ
11、ean 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 without any alteration. Up-to-date lists and bibliographical references conce
12、rning 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 made by translation under the responsibility of a CEN member into its own
13、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, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Swede
14、n, 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 exploitation in any form and by any means reserved worldwide for CEN national Me
15、mbers. Ref. No. EN ISO 3262-7:1998 EEN ISO 3262-7:1998 BSI 04-1999 2 Foreword The text of the International Standard ISO 3262-7:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 298 “Pigments and extenders”, the secretaria
16、t 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 shall be withdrawn at the latest by January 1999. According to the CEN/C
17、ENELEC 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, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, S
18、witzerland and the UnitedKingdom. Endorsement notice The text of the International Standard ISO 3262-7:1998 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative).EN ISO3262-7:1998 ii BSI 04-199
19、9 Contents Page Foreword iii 1 Scope 1 2 Normative references 1 3 Definition 1 4 Requirements and test methods 1 5 Test report 2 Annex ZA (normative) Normative references to international publications with their relevant European publications Inside back cover Table 1 Essential requirements 1 Table
20、2 Conditional requirements 2ENISO3262-7:1998 BSI 04-1999 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 commi
21、ttees. 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, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the I
22、nternational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the memb
23、er bodies casting a vote. International Standard ISO 3262-7 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 2, Pigments and extenders. Together with the other parts (see below), this part of ISO 3262 cancels and replaces ISO 3262:1975, which has been technically
24、revised. Part 1 comprises the definition of the term extender and a number of test methods that are applicable to most extenders, whilst part 2 and the following parts specify requirements and, where appropriate, particular test methods for individual extenders. At present, the following parts of IS
25、O 3262 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 sulfate); Part 3: Blanc fixe; Part 4: Whiting; Part 5: Natural crystalline calcium carbonate; Part 6
26、: 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 carbonates; Part 12: Muscovite-type mica; Part 13: Natural quartz (ground); Part 14: Cristobalite; Par
27、t 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 21: Silica sand (unground natural quartz); Part 22: Diatomaceous earth (kieselguhr). Descriptors: P
28、aints, extenders, dolomite, specifications, materials specifications, tests.iv blankENISO 3262-7:1998 BSI 04-1999 1 1 Scope This part of ISO3262 specifies requirements and corresponding methods of test for dolomite. 2 Normative references The following standards contain provisions which, through ref
29、erence 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 parties to agreements based on this part of ISO 3262 are encouraged to investigate the possibility of applying the most recen
30、t 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 pigments and extenders Part 2: Determination of matter volatile at 105 C. ISO 787-3:1979, General methods of test for pigment
31、s and extenders Part 3: Determination of matter soluble in water Hot extraction method. ISO 787-7:1981, General methods of test for pigments and extenders Part 7: Determination of residue on sieve Water method Manual procedure. ISO 787-9:1981, General methods of test for pigments and extenders Part
32、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 3262-1:1997, Extenders for paints Specifications and methods of test Part1:Introduction and general test methods. 3 Definition Fo
33、r the purposes of this part of ISO3262, the following definition applies: 3.1 dolomite natural calcium magnesium carbonate. The chemical composition of dolomite is such that it contains between1,18and1,23parts by mass of CaCO 3to1,0part by mass of MgCO 3 4 Requirements and test methods For dolomite
34、complying with this part of ISO 3262, the essential requirements are specified in Table 1 and the conditional requirements are listed inTable 2. Table 1 Essential requirements Characteristic Unit Requirement Test method Grade A Grade B Grade C CaMg(CO 3 ) 2content ab , min. % (m/m) 97 90 80 ISO 3262
35、-1 Matter volatile at 105 C, max. % (m/m) 0,3 ISO 787-2 Loss on ignition % (m/m) 46 to 48 c ISO 3262-1 Matter insoluble in hydrochloric acid, max. % (m/m) 1 6 10 To be agreed between the interested parties Matter soluble in water (hot extraction method), max. % (m/m) 0,2 ISO 787-3 pH value of aqueou
36、s suspension 8 to 10,5 c ISO 787-9 a See clause 3. b Details (composition) shall be given of any other minerals in the product. c These values do not take account of the effect on the result of any surface treatment.ENISO 3262-7:1998 2 BSI 04-1999 Table 2 Conditional requirements 5 Test report The t
37、est 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 3262-7); c) the results of the tests and whether or not the product complies with the relevant specification limits; d) any deviation fro
38、m the test methods specified; e) the dates of the tests. Characteristic Unit Requirement Test method Residue on 45 4m sieve % (m/m) ISO 787-7 Particle size distribution (instrumental method) % (m/m) To be agreed between the interested parties a Colour To be agreed between the interested parties ISO
39、3262-1 Lightness 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 technical ceramics Methods of test for ceramic powders Part 5: Determination of the
40、 particle size distribution. b Test method in preparation.EN ISO 3262-7:1998 BSI 04-1999 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 publicat
41、ions. 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 to this European Standard only when incorporated in it by amendment or revision.
42、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 at 105 degrees C EN ISO 787-2 1995 ISO 787-3 1979 General methods of test for pi
43、gments and extendersPart 3: Determination of matter soluble in water Hot extraction method EN ISO 787-3 1995 ISO 787-9 1981 General methods of test for pigments and extenders Part 9: Determination of pH value of aqueous suspension EN ISO 787-9 1995 ISO 3262-1 1997 Extenders for paints Specifications
44、 and methods oftest Part 1: Introduction and general test methods EN ISO 3262-1 1998BS EN ISO 3262-7:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in E
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