1、BRITISH STANDARD Extenders for paints Specifications and methods of test Part 22: Flux-calcined kieselguhr The European Standard EN IS0 3262-22:2001 has the status ofa British Standard ICs 87.060.10 BS EN IS0 3262-221200 1 Wk present to the responsible international/European committee any enquiries
2、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 its secretary. Cr oss-r e fer enc e s The B
3、ritish Standards which implement international 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 Bri
4、tish Standard does not 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 fro
5、nt cover, an inside front cover, the EN Is0 title This British Standard, having been prepared under the and page, EN IS0 foreword, IS0 title page, pages ii toiv, pages 1 to4, the Annex ZA The BSI copyright date displayed in this document indicates when the direction of the Sector Policy and Strategy
6、 Committee for published under the authority of the Standards Policv and page and a back Over. was was last issued. Strategy Committee on 21 December 2001 O BSI 21 December 2001 ISBN O 580 38797 6 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 3262-22 October 2001 ICs 87.060.10 English ver
7、sion Extenders for paints - Specifications and methods of test - Part 22: Flux-calcined kieselguhr (IS0 3262-22:2001) Matires de charge pour peintures - Spcifications et mthodes dessai - Partie 22: Kieselguhr, flux-calcin (IS0 3262-22:2001) Fllstoffe fr Beschichtungsstoffe - Anforderungen und Prfver
8、fahren - Teil 22: Kieselgur, fluxcalciniert (IS0 3262- 22:2001) This European Standard was approved by CEN on 15 October 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard wi
9、thout any alteration. 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 m
10、ade by translation under 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,
11、 Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation
12、 in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 3262-22:2001 E EN IS0 3262-222001 Foreword The text of the International Standard IS0 3262-22:2001 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Comm
13、ittee 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 April 2002, and conflicting national standards shall be withdraw
14、n at the latest by April 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemb
15、ourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 3262-22:2001 was approved by CEN as a European Standard without any modification. NOTE Normative references to International Standards are listed in a
16、nnex ZA (normative). EN IS0 3262-222001 INTERNATIONAL STANDARD IS0 3262-22 First edition 2001-1 0-15 Extenders for paints - Specifications and methods of test - Part 22: Flux-calcined kieselguhr Matires de charge pour peintures - Spcifications et mthodes dessai - Partie 22: Kieselguhr, flux-calcin R
17、eference number IS0 3262-22:2001(E) EN IS0 3262-222001 II EN IS0 3262-222001 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0
18、 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-governmental, in liaison with ISO, also take part in the work. IS0 collaborates cl
19、osely with the International Electrotechnical 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 circulate
20、d to the member bodies for voting. Publication 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 IS0 3262 may be the subject of patent rights. IS0 shall not be held resp
21、onsible for identifying any or all such patent rights. International Standard IS0 3262-22 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 IS0 3262 cancels and replaces IS0 3262:197
22、5, which has been technically 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. IS0 326
23、2 consists of the following parts, under the general title Extenders for paints - Specifications and methods of test: - Part I: Introduction and general test methods - Part 2: Barytes (natural barium sulfate) - Part 3: Blanc fixe - Part 4: Whiting - Part 5: Natural crystalline calcium carbonate - Pa
24、rt 6: Precipitated calcium carbonate - Part 7: Dolomite - Part 8: Natural clay - Part 9: Calcined clay - Part IO: Natural talc/chlorite in lamellar form - Part I I: Natural talc, in lamellar form, containing carbonates - Part 12: Muscovite-type mica - Part 13: Natural quartz (ground) - Part 14: Cris
25、tobalite - Part 15: Vitreous silica - Part 16: Aluminium hydroxides - Part 17: Precipitated calcium silicate - Part 18: Precipitated sodium aluminium silicate . 111 EN IS0 3262-222001 - Part 19: Precipitated silica - Part 20: Fumed silica - Part 2 I: Silica sand (unground natural quartz) - Part 22:
26、Flux-calcined kieselguhr iv EN IS0 3262-222001 Extenders for paints - Specifications and methods of test - Part 22: FI ux-calcined kieselguhr 1 Scope This part of IS0 3262 specifies requirements and corresponding methods of test for flux-calcined kieselguhr. 2 Normative references The following norm
27、ative documents contain provisions which, through reference in this text, constitute provisions of this part of IS0 3262. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IS0 3262 are encoura
28、ged 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 document referred to applies. Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 787-
29、2:1981, General methods of test for pigments and extenders - Part 2: Determination of matter volatile at 150 “C IS0 787-3:2000, General methods of test for pigments and extenders - Part 3: Determination of matter soluble in water - Hot extraction method IS0 78731980, General methods of test for pigm
30、ents and extenders - Part 5: Determination of oil absorption value IS0 787-7:1981, General methods of test forpigments and extenders - Part 7: Determination of residue on sieve - Water method - Manual procedure IS0 787-9:1981, General methods of test for pigments and extenders - Part 9: Determinatio
31、n of pH value of an aqueous suspension IS0 3262-1 :I 997, Extenders for paints - Specifications and methods of test - Part I: Introduction and general test methods IS0 3696: 1987, Water for analytical laboratory use - Specification and test methods IS0 5794-1 : 1994, Rubber compounding ingredients -
32、 Silica, precipitated, hydrated - Part I: Non-rubber tests IS0 15528:2000, Paints, varnishes and raw materials for paints and varnishes - Sampling 3 Term and definition For the purposes of this part of IS0 3262, the following term and definition apply. 3.1 fl ux-calci ned kieselguhr siliceous materi
33、al of diatomaceous origin 1 EN IS0 3262-222001 Characteristic Silica content, SO3, min. NOTE Flux-calcined kieselguhr is produced by adding soda ash or salt to the siliceous material and heating to 1 148 OC. The loss on ignition is then up to 3 % Na20 and K20. Flux calcining converts the iron oxide
34、to a colourless glassy phase and produces a white rather than pink diatomaceous earth. Requirement Unit Grade Test method A B % by mass 85 See clause 6 4 Requirements and test methods I o/, hi maicc Matter soluble in water, For flux-calcined kieselguhr complying with this part of IS0 3262 the essent
35、ial requirements are specified in Table 1 and the conditional requirements are listed in Table 2. Table 1 - Essential requirements 1 ,o IS0 787-3 Residue on sieve, max. 63 pm 45 pm Specific sutface area ILoss on ignition, max. I % by mass I 03 I IS0 3262-1 1 O 10 0,1 % by mass IS0 787-7 m2 /g max. 3
36、 min. 3 IS0 5794-1 pH-value of aqueous I suspension I Characteristic Lightness I “ “-“ I max. Unit Requirement Test method To be agreed between the interested parties partiesa To be agreed between the interested I ISO787-9 7,O to 10,5 Matter volatile at 105 OC, % by mass I max. IS0 787-2 loi1 absorp
37、tion value I g/IOOg I 120to200 I 90to140 I IS0 787-5 1“ Test method in preparation. 5 Sampling Take a representative sample of the product to be tested, as described in IS0 15528. 6 Determination of silica content 6.1 Reagents Use only reagents of recognized analytical grade and only water of at lea
38、st grade 3 purity as defined in IS0 3696. 6.1.1 Sulfuric acid, diluted 1 + 1 Add 1 part by volume of concentrated sulfuric acid, approximately 96 % by mass, p N 1,84 g/ml, slowly to 1 part by volume of water. 6.1.2 Hydrofluoric acid, concentrated, approximately 40 % by mass, p N 1 ,I3 g/ml. 2 EN IS0
39、 3262-222001 6.2 Apparatus Use ordinary laboratory apparatus and glassware, together with the following: 6.2.1 Platinum dish. 6.2.2 Muffle furnace, capable of being maintained at up to (1 O00 f 25) “C. 6.3 Procedure 6.3.1 Number of determinations Carry out the determination in duplicate. 6.3.2 Test
40、portion Weigh, to the nearest 1 mg, approximately 2 g of the sample (see clause 5), previously dried at 105 “C in accordance with IS0 787-2, into the tared platinum dish (6.2.1). 6.3.3 Determination Ignite the test portion in the platinum dish in the muffle furnace (6.2.2) at (1 O00 f 25) “C to cons
41、tant mass (ml) and allow to cool in a desiccator containing phosphorus pentoxide. Add approximately 1 mI of sulfuric acid (6.1 .I). Heat the platinum dish gently until fuming ceases and then continue the heating at 900 “C for 15 min in the muffle furnace. Remove from the furnace, cool in the desicca
42、tor and weigh (m2 1. Add to the residue in the platinum dish (6.2.1) 5 mI of hydrofluoric acid (6.1.2) and evaporate to a syrup, taking care to avoid loss by spitting. Cool the platinum dish and wash the sides down with small quantities of water. Then add a further 2 mI of hydrofluoric acid and evap
43、orate to dryness. Heat the residue on a hot-plate until white fumes are no longer evolved, then ignite in the muffle furnace at 900 “C for 15 min. Remove the dish from the furnace, allow to cool in the desiccator and weigh (m3). 6.4 Expression of results Calculate the silica content, w(Si02), expres
44、sed as a percentage by mass, using the equation: where ml is the mass, in grams, of the test portion after ignition; m2 is the mass, in grams, after treatment with sulfuric acid and igniting; m3 is the mass, in grams, after treatment with hydrofluoric acid and igniting. Calculate the mean of the two
45、 determinations and report the result to the nearest 0,l %. 3 EN IS0 3262-222001 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 IS0 3262 (IS0 3262-22); c) the results of the tests
46、 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. 4 EN IS0 3262-222001 EN IS0 787-3 EN IS0 787-5 EN IS0 787-9 EN IS0 3262-1 EN IS0 3696 EN IS0 15528 Annex ZA (norm at ive) 1995 1995 1995 1998
47、1995 2000 Normative references to International Publicationswith their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publication
48、s 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 undated references the latest edition of the publication referred to applies (including amendmen
49、ts). NOTE indicated by (mod.), the relevant EN/HD applies. Where an International Publication has been modified by common modifications, Publication IS0 787-2 IS0 787-3 IS0 787-5 IS0 787-9 IS0 3262-1 IS0 3696 IS0 15528 Year 1981 1979 1980 1981 1997 1987 2000 General methods of test for pigments and extenders - Part 2: Determination of matter volatile at 105 “C General methods of test for pigments and extenders - Part 3: Determination of matter soluble in water - Hot extraction method General methods of test for pigments and extenders - Part 5: Determination
