1、BRITISH STANDARD BS EN ISO 3262-13:1998 Extenders for paints Specifications and methods of test Part 13: Natural quartz (ground) The European Standard EN ISO3262-13:1998 has the status of a BritishStandard ICS 87.060.10BSENISO3262-13:1998 This British Standard, having been prepared under the directi
2、onof the Sector Board for Materials and Chemicals, was published under the authorityof the Standards Boardand comes into effect on 15September1998 BSI05-1999 ISBN 0 580 30439 6 National foreword This British Standard is the English language version of ENISO3262-13:1998. It is identical with ISO3262-
3、13:1997. Together with the other Parts of BSENISO3262, it will supersede BS1795:1976 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 resp
4、onsible 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 obtained on r
5、equest 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 international or Euro
6、pean 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 the nece
7、ssary 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 ii, theEN
8、 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 issued since p
9、ublication Amd. No. Date CommentsBSENISO3262-13:1998 BSI 05-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword iii Text of ISO 3262-13 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO3262-13 June 1998 ICS 87.060.10 Descriptors: See ISO document English ver
10、sion Extenders for paints Specifications and methodsoftest Part13: Natural quartz (ground) (ISO 3262-13-1997) Matires de charge pour peintures Spcifications et mthodes dessai Partie13:Quartz naturel broy (ISO3262-13:1997) Fllstoffe fr Beschichtungsstoffe Anforderungen und Prfverfahren Teil13:Natrlic
11、her Quartz (gemahlen) (ISO3262-13:1997) This European Standard was approved by CEN on14 May1998. 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-
12、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 made by translation under t
13、he 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, Ireland, Italy, Luxembou
14、rg, 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 exploitation in any form and by a
15、ny means reserved worldwide for CEN national Members. Ref. No. EN ISO3262-13:1998 EENISO3262-13:1998 BSI 05-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC35 “Paints and varnishes” of the International Organization for Standardization (ISO) has been taken over
16、as an European Standard by Technical Committee CEN/TC298 “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 December1998, and confli
17、cting national standards shall be withdrawn at the latest by December1998. 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, Germ
18、any, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO3262-13:1997 has been approved by CEN as a European Standard without any modification. NOTENormative refere
19、nces to International Standards are listed inAnnex 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 silica content 2 7 Test report 2 Annex ZA (normative) Normative referencestointernational pub
20、lications withtheirrelevantEuropean publications 3 Table 1 Essential requirements 1 Table 2 Conditional requirements 2ENISO3262-13:1998 ii BSI 05-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wor
21、k 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, governmental and non-governme
22、ntal, 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 member bodies for votin
23、g. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO3262-13 was prepared by Technical Committee ISO/TC35, Paints and varnishes, Subcommittee SC2, Pigments and extenders. Together with the subsequent parts, this I
24、nternational Standard cancels and replaces ISO3262:1975 which has been technically revised and divided into parts. Part1 comprises the definition for the term extender and a number of test methods that are applicable to most extenders, whilst parts2 and the following specify requirements and, where
25、appropriate, particular test methods for individual extenders. At present, the following parts of ISO3262 are in preparation, under the generaltitle Extenders for paints Specifications and methods of test Part 1: Introduction and general test methods; Part 2: Baryte (natural barium sulfate); Part 3:
26、 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 carbonates; Part 12
27、: 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 21: Silica sand
28、(unground natural quartz); Part 22: Diatomaceous earth (kieselguhr). Descriptors: Paints, extenders, quartz, specifications, materials specifications, tests.ENISO3262-13:1998 BSI 05-1999 1 1 Scope This part of ISO3262 specifies the requirements and the corresponding methods of test for natural quart
29、z (ground). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO3262. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on
30、 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. ISO787-2:1981, General methods of test for pigments and extenders Part2: De
31、termination of matter volatile at105C. ISO787-3:1979, General methods of test for pigments and extenders Part3: Determination of matter soluble in water Hot extraction method. ISO787-5:1980, General methods of test for pigments and extenders Part5: Determination of oil absorption value. ISO787-9:198
32、1, General methods of test for pigments and extenders Part9: Determination of pH value of an aqueous suspension. ISO787-14:1973, General methods of test for pigments Part14: Determination of resistivity of aqueous extract. ISO787-18:1983, General methods of test for pigments and extenders Part18: De
33、termination of residue on sieve Mechanical flushing procedure. ISO3262-1:1997, Extenders for paints Part1:Introduction and general test methods. 3 Definition For the purposes of this part of ISO3262, the following definition applies: 3.1 natural quartz material, consisting of the low-temperature mod
34、ification of quartz with a theoretical density of2,65g/cm 3 , ground to a powder 4 Requirements and test methods For ground natural quartz 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 Essentia
35、l requirements Characteristic Unit Requirement Grade Test method A B Quartz content % (m/m) min. 97 80 X-ray diffraction Silica content, SiO 2 % (m/m) min. 97 80 X-ray fluorescence or clause6 Residue on sieve 63m 45m % (m/m) To be agreed between the interested parties max. 0,1 1 ISO787-18 Matter vol
36、atile at105C % (m/m) max. 0,3 ISO787-2 a Loss on ignition % (m/m) max. 0,5 b ISO3262-1 Matter soluble in water (hot extraction) % (m/m) max. 0,2 ISO787-3 pH value of aqueous suspension 5,5 to9 b ISO787-9 a By agreement between the interested parties, test portions other than10g may be used. b These
37、values exclude a possible surface treatment.ENISO3262-13:1998 2 BSI 05-1999 Table 2 Conditional requirements 5 Sampling Take a representative sample of the product to be tested, as described in ISO842. 6 Determination of silica content 6.1 Reagents During the analysis, use only reagents of recognize
38、d analytical grade and only water of at least grade3 purity as defined in ISO3696. 6.1.1 Sulfuric acid, diluted1+1. Add1 part of sulfuric acid, 96%(m/m), . 1,84g/ml, slowly to1 part of water. 6.1.2 Hydrofluoric acid, 40%(m/m), . 1,13g/ml. 6.2 Apparatus Ordinary laboratory apparatus and glassware, to
39、gether with the following. 6.2.1 Platinum dish. 6.2.2 Muffle furnace. 6.3 Procedure Weigh, to the nearest1mg, approximately2g of the test sample (clause5), previously dried at105C in accordance with ISO787-2, into the tared platinum dish(6.2.1), ignite in the muffle furnace(6.2.2) at1000C 25C to con
40、stant mass (m 1 ) and allow to cool in a desiccator containing phosphorus pentoxide. Add approximately1ml of the sulfuric acid(6.1.1). Heat the platinum dish gently until fuming ceases and then continue the heating at900C for15min in the muffle furnace. Remove from the furnace, allow to cool in the
41、desiccator and weigh (m 2 ). Add to the residue in the platinum dish15ml of the hydrofluoric acid(6.1.2) and 1ml of the sulfuric acid(6.1.1) and evaporate to a syrup, taking care to avoid loss by spitting. Cool the dish and wash the sides down with small quantities of water. Then add a further10ml o
42、f hydrofluoric acid and evaporate to dryness. Heat the residue on a hot-plate until white fumes are no longer evolved, then ignite in the muffle furnace at900C for15min. Remove the dish from the furnace, cool in the desiccator and weigh (m 3 ). 6.4 Expression of results Calculate the silica content
43、w(SiO 2 ), expressed as a percentage by mass, using the equation: where 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 ISO3262 (ISO3262-13); c) the results of the tests and whethe
44、r or not the product complies with the relevant specification limits; d) any deviation from the test methods specified; e) the date of the test. Characteristic Unit Requirement Test method Particle size distribution (instrumental method) % (m/m) To be agreed between the interested parties To be agre
45、ed between the interested parties a Oil absorption g/100g ISO787-5 Colour ISO3262-1 Lightness To be agreed between the interested parties b Resistivity of aqueous extract 7m ISO787-14 a A general description of the sedimentation method, with the detection of X-ray absorption, is given in EN725-5, Ad
46、vanced technical ceramics Methods of test for ceramic powders Part5: Determination of particle size distribution. b Test method in preparation. m 1 is the mass, in grams, of the ignited residue; m 2 is the mass, in grams, after treatment with sulfuric acid and igniting; m 3 is the mass, in grams, af
47、ter treatment with hydrofluoric acid and igniting.ENISO3262-13:1998 BSI 05-1999 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 publications. Thes
48、e 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. For undate
49、d references the latest edition of the publication referred to appies. Publication Year Title EN Year ISO787-2 1981 General methods of test for pigments and extenders Part2: Determination of matter volatile at105C EN ISO787-2 1995 ISO787-3 1979 General methods of test for pigments and extenders Part3: Determination of matter soluble in water Hotextraction method EN ISO787-3 1995 ISO787-5 1980 General methods of test for pigments and extenders
