1、STD-BSI BS EN IS0 3262-9-ENGL 1998 L624 - present to the responsible internationallEuropean 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 or
2、ganizations represented 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 nonnative references to international publications with their correspondmg European publications
3、. The British Standards which implement intedonal or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Intemational Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A B
4、ritish standard does not purport to include ali the necessary provisions of a contsact. 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 o
5、nt cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii and iii, a blank page, pages 1 to 9, the annex ZA page, an inside back cover and a back cover. STD-BSI BS EN IS0 3262-9-ENGL 1998 Lb24bb9 072085b 471 EUROPEANSTANDARD NORME EUROPENNE EURWIS
6、CHE NORM EN IS0 3262-9 June 1998 ICs 67.060.10 Descriptors: see IS0 document English version Extenders for paints - Specifications and methods of test - Part 9: Calcined clay (IS0 3262-9:1997) MatiBres de charge pour peintures - Spcications et methodea dessai - Pare 9: Min calcin (Is0 3262- Fllstofe
7、 fr Beschichtungsstofe - Anforderungen und Pruhrerfahren - Teil 9: Calcinietter Kaolin (IS0 3262- 9:1997) 9: 1 997) This European Standard was appmved by CEN on 14 May 1998. CEN members are bound to campiy with the CENKENELEC Intemal Regulations which stipulate the conditions for giving this Europea
8、n Standard the status oi a national standard without any alteration. Up-to-date lists and bibliographical reerences concerning such national standards may be obtained on appiicaaOn to the Central Secretariat or to any CEN member. This European Standard eristS in three official verskm (English, Frenc
9、h, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to aie Central Secretariat has the same status as the offiaal versions. CEN members are the natkmai standards bodies of Austria, Belgium, Czech Republic, Denmar
10、k, Finland, France, Oermany, Qreece, Iceland, Ireland, Italy, Luxembouig. Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. * tn * EUROPEAN HlR STANDARDEATiON EUROPAISCHES KOMITEE FOR NORMUNG COMITB EUROPEEN DE NORMALISATION Q 1998 CEN All rights of expbltation in any fom
11、i and by any means resewed worldwide for CEN national Members. Ref. No. EN IS0 3262-9:1998 E Foreword The text of the International Standard from Technical Committee ISO/TC 35 “Paints and varnishes“ of the International Organization for Standardization WO) has been taken over as an European Standard
12、 by Technical 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 December 1998, and conflicting national standa
13、rds shall be withdrawn at the latest by December 1998. According to the CEN/CENELEC 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, Icelan
14、d, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 3262-9:1997 has been approved by CEN as a European Standard without any modification. NOTE: Normative references to Internati
15、onal Standards are listed in annex ZA (normative). - STD-BSI BS EN IS0 32b2-9-ENGL 1998 W 1624669 0720858 244 - EN IS0 3262-91998 INTERNATIONAL STANDARD IS0 3262-9 First edition 1997-06-1 5 Extenders for paints - Specifications and methods of test - Part 9: Calcined clay Matires de charge pour peint
16、ures - Spcifications et mthodes dessai - Partie 9: Kaolin calcin Reference number IS0 3262-9: 1997( E) STD.BS1 BS EN IS0 32b2-9-ENGL 1998 3624669 0720859 LB0 EN IS0 3262-9:1998 Foreword IS0 (the international Organization for Standardization) is a worldwide federation of national standards bodies (I
17、S0 member bodies). The work of preparing International Standards is normally carried out 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, gov
18、ernmental and non-governmental, in liaison with ISO, also take part in the work. IS0 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 t
19、he member bodies for voting. Publication as an international Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 3262-9 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 2, Pigments and extenders. Together wit
20、h the subsequent parts, this International Standard cancels and replaces IS0 3262: 1975 which has been technically revised and divided into parts. Part 1 comprises the definition for the term extender and a number of test methods that are applicable to most extenders, whilst parts 2 and the followin
21、g specify requirements and, where appropriate, particular test methods for individual extenders. At present, the following parts of IS0 3262 are in preparation, under the general title Extenders for paints - Specification and methods of test - Part I: introduction and general test methods - Part 2:
22、Baryte (natural barium sulfate) Descriptors: paints, extenders, clays, kaolin, specifications, materials specifications, tests. i * m * STD-BSI BS EN IS0 3262-9-ENGL 1998 1624669 Di720860 9T2 EN IS0 3262-9:1998 - Part 3: Blanc fixe - Part 4: Whiting - Part 5: Natural crystalline calcium carbonate -
23、Part 6: Precipitated calcium carbonate - Part 7: Dolomite - Part 8: Natural clay - Part 9: Calcined clay - Part 10: Natural talc/chiorite in lamellar form - Part 1 I: Natural talc, in lamellar form, containing carbonates - Part 12: Muscovite-type mica - Part 13: Natural quartz (ground) - Part 14: Cr
24、istobalite - Part 15: Vitreous silica - Part 16: Aluminium hydroxides - Part 17: Precipitated calcium silicate - Part 18: Precbitated sodium aluminium silicate - Part 19: Precipitated silica - Part 20: Fumed silica - Part 2 I: Silica sand (unground natural quartz) - Part 22: Diatomaceous earth (kies
25、elguhr) iii STDsBSI BS EN IS0 3262-9-ENGL 1998 Lb24669 07208bL 839 EN IS0 3262-9:1998 Extenders for paints - Specifications and methods of test - Part 9: Calcined clay 1 Scope This part of IS0 3262 specifies the requirements and the corresponding methods of test for calcined clay. 2 Normative refere
26、nces The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 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 IS0 3262 are en
27、couraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 787-2: 1981 , General methods of test for pigments and extenders - Part 2: Determination of matter
28、volatile at 105 C. IS0 787-3: 1979, General methods of test for pigments and extenders - Part 3: Determination of matter soluble in water - Hot extraction method. IS0 787-9: 1981 , General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspension. IS0 78
29、7- 1 4: 1 973, General methods of test for pigments - Part 14: Determination of resistivity of aqueous extract. IS0 787-1 8: 1983, Generalmethods of test for pigments and extenders - Part 18: Determination of residue on sieve - Mechanical flushing procedure. IS0 842: 1984, Raw materials for paints a
30、nd varnishes - Sampling. IS0 3262-1 : 1997 , Extenders for paints - Specifications and methods of test - Part 1: Introduction and general test methods. IS0 3696: 1907, Water for analytical laboratory use - Specification and test methods. 1 STD-BSI BS EN IS0 3262-9-ENGL 1998 1624Lb9 0720862 775 EN IS
31、0 3262-9:1998 90 0,02 0,05 0,l 90 70 40 03 1 02 3 Definition For the purposes of this part of IS0 3262, the following definition applies: 3.1 calcined clay: Aluminium silicate (AI,O, - 2SiO2), lamellar, mainly amorphous in structure as determined by X-ray diffraction, produced from natural clay by t
32、hermal dehydration, consisting partly of crystalline mullite (3AI,O, 2Si0,). X-ray fluoresence IS0 787-18 See clause 6 IS0 787-2) IS0 3262-1 IS0 787-3 4 Requirements and test methods 5 to 9 For calcined clay complying with this part of IS0 3262, the essential requirements are specified in table 1 an
33、d the conditional requirements are listed in table 2. IS0 787-9 Table 1 - Essential requirements Characteristic Content of AI,O, 2Si0, Residue on sieve, 45 ,um Particle size distribution (Andreasen method) 2um Matter volatile at 105 C Loss on ignition Matter soluble in water (hot extraction method)
34、pH value of aqueous suspension Unit % (m/m) min. % (m/m) max. % (m/m) min. % Irnlrn) max. % (m/m) max. % (m/ml max. Requirement grade Test method i By agreement between the interested parties, test portions other than 10 g may be used. 1 2 EN IS0 3262-9:1998 Characteristic Particle size distribution
35、 (instrumental method) Colour Lightness Table 2 - Conditional requirements Unit Requirement % (mlm) To be agreed between the interested parties I I I i I Resistivity of aqueous I Q m I I Test method To be agreed between the interested parties) IS0 3262-1 I To be agreed between the interested parties
36、2) IS0 787-14 1 A general description of the sedimentation method, with the detection of X-ray absorption, is given in EN 725-5, Advanced technical ceramics - Methods of test for ceramic powders - Part 5: Determination of particle size distribution. 2, Test method in preparation. 1 5 Sampling Take a
37、 representative sample of the product to be tested, as described in IS0 842. 6 Determination of the particle size distribution Because of its simple procedure and good reproducibility the Andreasen method) is given as the referee method. Other methods may, however, be used by agreement between the i
38、nterested parties, but in such cases it will be necessary to agree on appropriate limits. 6.1 Principle The rate of fall of spherical particles through a medium in which they are dispersed is proportional to the square of the particle diameter (Stokes law). The Andreasen method for determination of
39、particle size distribution makes use of this relationship ) Andreasen, A.H.M., Lundberg, I.; “Berichte aus der deutschen Keramischen Gesellschaft“ 11 (1930), 5, pages 31 2 to 323 1 3 STD-ES1 ES EN IS0 32b2-9-ENGL 1998 E 1b24669 07208b4 548 EN IS0 3262-9:1998 expressing the particle size distribution
40、 in terms of the distribution of spherical particles having the same settlement rate. A suspension is prepared and the concentration of solids at a fixed distance below the surface is determined at a series of time intervals selected to correspond to a series of given sphere diameters. 6.2 Reagents
41、Use only reagents of recognized analytical grade and only water of at least grade 3 purity as defined in IS0 3696. 6.2.1 Dispersing agent. Dissolve 0,2 g of sodium carbonate and O, 1 g of sodium hexametaphosphate in 750 ml of water. 6.3 Apparatus (see figure 1) Ordinary laboratory apparatus and glas
42、sware, together with the following: 6.3.1 Sedimentation vessel, glass, of 56 mm internal diameter and having a graduated scale from O mm to 200 mm marked on its side. The zero graduation line shall be not less than 25 mm from the inside base of the vessel, and the capacity of the vessel up to the 20
43、0 mm graduation line shall be between 550 ml and 620 ml. 6.3.2 Pipette, fitted with a two-way tap and a side discharge tube. NOTE 1 The capacity of the pipette to the graduation line is conveniently 10 ml. A bell-shaped dome with a ground glass joint to fit the neck of the sedimentation vessel shall
44、 be fused to the pipette. A small vent hole shall be made in this dome. The tip of the pipette stem shall be level with the zero line on the sedimentation vessel. The stem from the pipette bulb to the tip shall be made of capillary glass tubing with a bore not less than 1 mm and not more than 1,3 mm
45、 in diameter. The tube above the bulb shall have a bore of 4 mm to 4,5 mm in diameter. .* . 6.3.3 Constant-temperature bath of at least i 5 I capacity, having transparent walls, capable of being maintained at a temperature of (23 f 0,5) C, into which the sedimentation vessel can be immersed up to th
46、e 200 mm graduation line. The bath shall be positioned away from sources of vibration, and the circulating system shall not cause vibration. 4 STD-BSI BS EN IS0 3262-9-ENGL 1998 = Lb24bb9 0720865 484 EN IS0 3262-9:1998 6.3.4 Mechanical stirrer, capable of rotating at a suitable speed for complete di
47、spersion (l O00 f 100) min is generally suitable. The stirrer shall be capable of lifting the dispersion and avoiding the creation of a vortex. NOTE 2 A suitable stirrer may be made from an approximately 40 mm diameter brass disc with four equally spaced cuts, the cut sections being turned upwards a
48、t an angle of 30 to the horizontal. cct FIGURE 1 - Sedimentation vessel and pipette 5 STD.BSI BS EN IS0 32b2-9-ENGL 1998 = Lb2Ltbb3 0720866 350 EN IS0 3262-9:1998 6.3.5 Dispersion vessel, of appropriate dimensions, such as a 1 O00 ml gas jar. 6.3.6 Analytical balance, capable of weighing to 0,l mg.
49、6.3.7 Drying oven, capable of being maintained within a temperature range suitable for evaporation of the suspending liquid, for example (105 f 2) C for water. 6.3.8 Wide-mouthed weighing bottles, suitable for evaporation, of capacity not less than 20 ml, or a small laboratory centrifuge and centrifuge tubes, preferably of 20 ml capacity but of not less than 10 mi capacity. 6.3.9 Stop-watch or stop-clock. 6.4 Preparation for the test 6.4.1 Calibration of pipette Thoroughly clean the pipette (6.3.2). Partly fill the s
