1、STD.BSI BS EN IS0 32b2-15-ENGL 2000 I 1b24bb 08b5411 BRITISH STANDARD Extenders for paints - Specifications and methods of test - Part 15: Vitreous silica The European Standard EN IS0 3262-152000 has the status of a British Standard ICs 87.060.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED
2、 BY COPYBIGET LAW ?98 I IS EN IS0 STD.BSI BS EN IS0 3262-15-ENGL 2000 lb24bb9 OBb5412 b24 m BS EN IS0 3262-15:2000 been prepared under the direction of the Sector Amd. No. Date Committee for Materiais and Chemicals, was published under the authority of the Standards Commitke and comes into effect on
3、 15 August Zoo0 Q BSI 082000 ISBN O 580 36101 2 National foreword Comments This British Standard is the official English language version of EN IS0 3262-152000. It is identical with IS0 3262-152000. Together with the other parts of BS EN IS0 3262, it will supersede BS 17951976 which is declared obso
4、lescent. The UK participation in its preparation was entnisted to Technical Committee SWl, Pigments and extenders, which has the responsibility to: - aid enquirers to understand the te* - present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals fo
5、r change, and keep the UK interests informed; - monitor related intemational and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secrem. Cross-references Attention is dram to the fact that CEN and CENELEC St
6、andards norrnaily include an annex which lists nonnative references to international publications with their corresponding European publications. The British Standards which implement inkrnational or European publications referred to in this document may be found in the BSI Standards Catalogue under
7、 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 provisions of a contract. Users of British Standards are responsible for their correct app
8、lication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a hnt cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii to iv, pages 1 to 4, the annex ZA page an
9、d a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. STD-BSI BS EN IS0 32b2-15-ENGL i000 Zb24bb9 0865413 5bO W EUROPEAN STANDARD EN IS0 3262-15 NORME EUROPENNE EUROPISCHE NORM May 2000 ICs 87.060.1 O English version Extenders for paints - S
10、pecifications and methods of test - Part 15: Vitreous silica (IS0 3262-1 5:2000) Matires de charge pour peintures - Spcifications et mthodes dessai - Partie 15: Silice vitreuse (IS0 3262- 132000) Fllstoffe fr Beschichtungsstoff e - Anforderungen und Prfverfahren - Teil 15: Kieselglasmehl (IS0 3262-1
11、5:2000) This European Standard was approved by CEN on 10 March 2000. CEN members are bound to comply with the CENEENELEC 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 bibliographica
12、l 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 the responsibility of a CEN me
13、mber 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Por
14、tugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FUR NORMUNG COMITE EUROPEEN DE NORMALISATION Central Secretariat: rue de Stassart, 36 B-1050 Brussels Q 2000 CEN All rights of exploitation in any form and by any means resewed worldwide fo
15、r CEN national Members. Ref. No. EN IS0 3262-1 5:2000 E STDmBSI BS EN IS0 32b2-25-ENGL 2000 .I Lb24bb9 OBb5414 4T7 W EN IS0 3262-15:ZOOO Foreword The text of the International Standard IS0 3262-152000 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Tec
16、hnical 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 November 2000, and conflicting national standards sha
17、ll be withdrawn at the latest by November 2000. 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, Irela
18、nd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. I Endorsement notice The text of the International Standard IS0 3262-152000 was approved by CEN as a European Standard without any modification. STDmBSI BS EN IS0 32bZ-LS-ENGL 2000 LbZ4bb9 08bS42
19、5 333 EN IS0 3262-16:2000 I NTERNATIONAL STANDARD IS0 3262-1 5 First edition 2000-05-1 5 Extenders for paints - Specifications and methods of test - Part 15: Vitreous silica Matires de charge pour peintures - Spcifications et mthodes dessai - Partie 15: Silice vitreuse Reference number IS0 3262-1 5:
20、2000(E) STD.BSI BS EN IS0 32bZ-LS-ENGL 2000 m Lb24bb9 08b54Lb 27T m EN IS0 3262-16:2000 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
21、through IS0 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. IC0 coll
22、aborates closely with the International Electrotechnical Commis- sion (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
23、are circulated 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
24、 be held responsible for identifying any or all such patent rights. International Standard IS0 3262-1 5 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 replace
25、s IS0 3262:1975, 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, par- ticular test methods for individual ex
26、tenders. IS0 3262 consists of the following parts, 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 calciu
27、m carbonate - Part 6: Precipitated calcium carbonate - fart 7: Dolomite - Part 8: Natural clay - Part 9: Calcined clay - Part 10: Natural taldchlorite in lamellar form - Part 1 1: Natural talc, in lamellar form, containing carbonates - Part 12: Muscovite-type mica - Part 13: Natural quartz (ground)
28、- Part 14: Cristobalite - Part 15: Vitreous silica - fart 16: Aluminium hydroxides - Part 17: Precipitated calcium silicate - Part 18: Precipitated sodium aluminium silicate iii STD-BSI BS EN IS0 32b2-L5-ENGL 2000 m Lb24bb OBb54L7 10b = EN IS0 3262-15:2000 - Part 19: Precipitated silica - Part 20: F
29、umed silica - Part 21: Silica sand (unground natural quartz) - Part 22: Flux-calcined kieselguhr iv STD-BSI BS EN IS0 32b2-35-ENGL 2000 m Lb24bb9 0865438 O42 m EN IS0 3262-15:2000 Extenders for paints - Specifications and methods of test - Part 15: Vitreous silica 1 Scope This part of IS0 3262 speci
30、fies requirements and corresponding methods of test for vitreous silica. 2 Normative references The following normative 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,
31、 any of these publications do not apply. However, parties to agreements based on this part of IS0 3262 are encouraged to investigate the possi- bility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document
32、 referred to applies. Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 787-2:1981, General methods of test for pigments and extenders - Part 2: Determination of matter volatile at 705 “C. IS0 787-3:-), General methods of test for pigments and extenders - Part
33、 3: Determination of matter soluble in water - Hot exfraction method. IS0 787-5:1980, General methods of test for pigments and extenders - Part 5: Determination of oil absorption value. IS0 787-7:1981, General methods of test for pigments and extenders - Part 7: Determination of residue on sieve - W
34、ater method - Manual procedure. IS0 787-9:1981, General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspension. IS0 787-1 4:1973, General methods of test for pigments - Part 74: Determination of resistivity of aqueous extract. IS0 3262-1 :1997, Extend
35、ers for paints - Specifications and methods of test - Part 7: Introduction and general test methods. IS0 3696:1987, Water for analytical laboratory use - Specification and test methods. IS0 15528:3), Paints, varnishes and raw materials for paints and varnishes - Sampling. 1) To be published. (Revisi
36、on of IS0 787-3:1979) 2) To be published. (Revision of IS0 842:1984 and IS0 1512:1991) 1 STD.BSI BS EN IS0 32b2-15-ENGL 2000 = Lh24bb9 OBb54L9 TB9 = EN IS0 3262-15:2000 Characteristic Silica content, min. Quartz content, max. Cristobalite content, max. Matter volatile at 105 OC, max. Loss on ignitio
37、n, max. Matter soluble in water, max. pH value of aqueous suspension 3 Term and definition Requirement (quartz glass) (fused silica) % (m/m) 99,5 99 See clause 6 yo (m/m) OS 1 ,o X-ray diffraction Unit Grade A Grade B Test method IS0 787-2 a % (m/m) 02 0,1, 02b IS0 3262-1 0,s 03 yo (m/m) yo (m/m) 0,
38、1 IS0 787-3 IS0 787-9 5 to 7 5togb - For the purposes of this part of IS0 3262, the following term and definition applies. 3.1 vitreous silica a non-crystalline modification of silica I For use as an extender it is supplied ground to a powder. There are two different grades of vitreous silica in use
39、, the grade depending on the raw materials used in its manu- facture: Grade A (quartz glass): A transparent form of vitreous silica that is usually made from molten rock crystal. Grade B (fused silica): An opaque form of vitreous silica that is made from molten silica sand. The opacity of the produc
40、t is due to very small gas bubbles incorporated in it. 4 Requirements and test methods For vitreous silica complying with this part of IS0 3262, the essential requirements are specified in Table 1 and the conditional requirements are listed in Table 2. a Another method may be agreed between the inte
41、rested parties provided it gives the same results. These values take into account the effect on the result if the product has undergone surface treatment. 2 STD.BSI BS EN IS0 -IJ-ENGL 2000 1624669 08b5420 ?TO EN IS0 3262-1k2000 Table 2 - Conditional requirements To be agreed between the interested p
42、arties 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 During the analysis, use only reagents of recognized analytical grade and only water of at least grade 3 purity as de- fin
43、ed in IS0 3696. 6.1.1 Sulfuric acid, diluted 1 + 1. Add 1 part by volume of concentrated sulfuric acid, approximately 96 % (m/m), p M 1,84 g/ml, slowly to 1 part by volume of water. 6.1.2 Hydrofluoric acid, approximately 40 % (m/m), p N 1,13 g/ml. 6.2 Apparatus Use ordinary laboratory apparatus and
44、glassware, together with the following: 6.2.1 Platinum dish. 6.2.2 Muffle furnace. 6.3 Procedure Weigh, to the nearest 1 mg, approximately 2 g of the test sample (clause 5), previously dried at 105 OC in accord- ance with IS0 787-2, into the tared platinum dish (6.2.1), ignite in the muffle furnace
45、(6.2.2) at (1 O00 f 25) “C to constant mass (mi) and allow to cool in a desiccator containing phosphorus pentoxide. Add approximately 1 ml of sulfuric acid (6.1.1). Heat the platinum dish gently until fuming ceases and then continue the heating at 900 OC for 15 min in the muffle furnace. Remove from
46、 the furnace, allow to cool in a desiccator and weigh to the nearest 0,l mg (m2). Add to the residue in the platinum dish 15 ml of hydrofluoric acid (6.1.2) and 1 ml of sulfuric acid (6.1 .I) and evapo- rate to a syrup, taking care to avoid loss by spitting. Cool the dish and wash the sides down wit
47、h small quantities of 3 EN IS0 3262-15:2000 water. Then add a further 1 O ml of 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 at 900 OC for 15 min. Remove the dish from the furnace, cool in the d
48、esiccator and weigh to the nearest 0,l mg (m3). 6.4 Expression of results Calculate the silica content w(Si02), expressed as a percentage by mass, using the equation: w(sio2) = m2-m3 x 100 ml where ml m2 m3 is the mass, in grams, of the ignited residue; is the mass, in grams, after treatment with su
49、lfuric acid and igniting; is the mass, in grams, after treatment with hydrofluoric acid and igniting. 7 Testreport 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 3262-1 5); c) the 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. 4 STDOBSI BS EN IS0 32b2-15-ENGL 2000 M Lb24bb9 08b5422 573 EN IS0 3262-16:2000 Anne
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