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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 3262-18:2000 In
2、corporating Corrigendum No. 1 The European Standard EN ISO 3262-18:2000 has the status of a British Standard ICS 87.060.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Extenders for paints Specifications and methods of test Part 18: Precipitated sodium aluminium silicate Li
3、censed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 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 Committee and comes into ef
4、fect on 15 August 2000 BSI 09-2000 ISBN 0 580 36098 9 BS EN ISO 3262-18:2000 Amendments issued since publication Amd. No.DateComments 11072 Corrigendum No. 1 September 2000 Addition of annex ZA National foreword This British Standard is the official English language version of EN ISO 3262-18:2000. I
5、t is identical with ISO 3262-18:2000. 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 and extenders, which has the responsibility to: aid enquir
6、ers 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 organizations rep
7、resented 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. The British
8、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 British Standa
9、rd 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 front cover, a
10、n inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 11, the annex ZA page, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffiel
11、dun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3262-18 April 2000 ICS 87.060.10 English version Extenders for paints - Specifications and methods of test - Part 18: Precipitated sodium aluminium silicate (I
12、SO 3262:2000) Matires de charge pour peintures - Spcifications et mthodes dessai - Partie 18: Silicoaluminium de sodium prcipit (ISO 3262-18:2000) This European Standard was approved by CEN on 15 April 2000. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate th
13、e conditions for giving this European Standard the status of a national standard without 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
14、 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 language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies o
15、f Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Centr
16、al Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3262-18:2000 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI F
17、oreword The text of the International Standard ISO 3262-18:2000 has been 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 shall be given the
18、status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2000, and conflicting national standards shall be withdrawn at the latest by October 2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of
19、the following countries 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 th
20、e International Standard ISO 3262-18:2000 has been approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00
21、2006, Uncontrolled Copy, (c) BSI Reference number ISO 3262-18:2000(E) INTERNATIONAL STANDARD ISO 3262-18 First edition 2000-04-15 Extenders for paints Specifications and methods of test Part 18: Precipitated sodium aluminium silicate Matires de charge pour peintures Spcifications et mthodes dessai P
22、artie 18: Silicoaluminate de sodium prcipit EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii? EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BS
23、I ?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 interested in a subject for wh
24、ich 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 Commission (IEC) on all
25、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 as an International Sta
26、ndard 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 3262 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International S
27、tandard ISO 3262-18 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 revised. Part 1 comprises the definition o
28、f 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. ISO 3262 consists of the following parts, under the general titleExtenders for
29、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: Precipitated calcium carbonate ?Part 7: Dolomite ?Part 8: Natural clay ?Par
30、t 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) EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Unco
31、ntrolled Copy, (c) BSI iv? ?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 (unground natural quartz) ?Pa
32、rt 22: Flux-calcined kieselguhr EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ?1 Extenders for paints Specifications and methods of test Part 18: Precipitated sodium aluminium silicate 1?Scope This part of ISO 3262 spec
33、ifies requirements and corresponding methods of test for precipitated sodium aluminium silicate. 2?Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 3262. For dated references, subsequent amendme
34、nts to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 3262 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
35、the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 648:1977,Laboratory glassware One-mark pipettes. ISO 787-2:1981,General methods of test for pigments and extenders Part 2: Determination of matter volatile at 105 C.
36、ISO 787-5:1980,General methods of test for pigments and extenders Part 5: Determination of oil absorption value. ISO 787-9:1981,General methods of test for pigments and extenders Part 9: Determination of pH value of an aqueous suspension. ISO 3262-1:1997,Extenders for paints Specifications and metho
37、ds of test Part 1: Introduction and general test methods. ISO 3696:1987,Water for analytical laboratory use Specification and test methods. ISO 5794-1:1994,Rubber compounding ingredients Silica, precipitated, hydrated Part 1: Non-rubber tests. ISO 15528:1),Paints, varnishes and raw materials for pai
38、nts and varnishes Sampling. 3?Term and definition For the purposes of this part of ISO 3262, the following term and definition apply. 3.1 precipitated sodium aluminium silicate amorphous silicate precipitated by reaction of sodium silicate solution with a mineral acid and/or an aluminium salt 1)To b
39、e published. (Revision of ISO 842:1984 and ISO 1512:1991) EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2? 4?Requirements and test methods For precipitated sodium aluminium silicate complying with this part of ISO 3262,
40、 the essential requirements are specified in Table 1 and the conditional requirements are listed in Table 2. Table 1 Essential requirements Characteristic?Unit?Requirement?Test method Silica content, min.?75?See clause 6 or 7 Oxide content Na2O 3 to 10 Al2O3 % (m/m) 5 to 15 See clause 7 Residue on45
41、 msieve, max.?% (m/m)?2?See clause 8 Lightness, min.?%?95?Test method in preparation Matter volatile at 105 C, max.?% (m/m)?10?ISO 787-2 Loss on ignition?% (m/m)?3 to 12?ISO 3262-1 Oil absorption valuea, min. ?g/100 g?70?ISO 787-5 pH value of aqueous suspension?7 to 12?ISO 787-9 a A test method with
42、 higher reproducibility and repeatability is described in ASTM D 2414-97,Standard test method for carbon black n-Dibutyl phthalate absorption number.However, the results cannot be compared directly with oil absorption values determined in accordance with ISO 787-5. Table 2 Conditional requirements C
43、haracteristic?Unit?Requirement?Test method Particlesizedistribution (instrumental method) % (m/m) To be agreed between the interested parties Specific surface area?m2/g To be agreed between the interested parties ISO 5794-1:1994, annex D 5?Sampling Take a representative sample of the product to be t
44、ested, as described in ISO 15528. 6?Determination of silica content 6.1? Principle A test portion is repeatedly treated with hydrochloric acid and evaporated to dryness. To render the dehydrated silicic acid thus formed as insoluble as possible, it is then heated for 2 h at (140 ? 5) C. Any chloride
45、s present are removed by extracting the precipitate with hot dilute hydrochloric acid. The precipitate is ignited at 1000 C, giving impure silicon dioxide, which is treated with sulfuric and hydrofluoric acid. The silicon tetrafluoride formed is evaporated off and the silica content is calculated fr
46、om the resulting loss in mass. EN ISO 3262-18:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:00:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ?3 6.2? Reagents Use only reagents of recognized analytical grade and only water of at least grade 3 purity as defined in ISO 3696. 6.2.1Hydro
47、chloric acid, concentrated, approximately 32 % (m/m), ? 1,16 g/ml. 6.2.2Hydrochloric acid, diluted 1 ? 1. Add 1 part by volume of concentrated hydrochloric acid (6.2.1) to 1 part by volume of water. 6.2.3Sulfuric acid, diluted 1 ? 1. Add 1 part by volume of concentrated sulfuric acid, approximately
48、96 % (m/m), ? 1,84 g/ml, slowly to 1 part by volume of water. 6.2.4Hydrofluoric acid, concentrated, approximately 40 % (m/m), ? 1,13 g/ml. 6.3? Apparatus Use ordinary laboratory apparatus and glassware, together with the following: 6.3.1Dish. 6.3.2Platinum crucible. 6.3.3Water bath, capable of being
49、 maintained at 100 C. 6.3.4Infrared evaporator. 6.3.5Muffle furnace, capable of being maintained at (1000 ? 20) C. 6.3.6Drying oven, capable of being maintained at (140 ? 5) C. 6.3.7Filter paper. The filter paper used for filtration of the silica shall be of such texture as to retain the smallest particles of precipitate and nevertheless permit rapid filtration.2) 6.3.8Desiccator, containing magnesium perchlorate as desiccant. 6.4? Procedure 6.4.1?Number of determinations Carry out the determinati
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