1、STD-BSI BS EN IS0 10545-12-ENGL 1977 m lb2qbh7 Ob58775 L7b BRITISH STANDARD Ceramic tiles Part 12. Determination of frost resis,bance The European Standard EN IS0 1054512 : 1997 has the status of a British Standard ICs 91.100.20 BS EN IS0 10545-12 : 1997 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS P
2、ERMITTED BY COPYRIGHT LAW “L STD.BS1 BS EN IS0 10545-12-ENGL 1777 Lb2Llbb Ob57b O02 m BS EN IS0 10545-12 : 1997 This British Standard, having been prepared under the direction of the Sector Board for Building and Civil Engineering, was published under the authority of the Standards Board and comes i
3、nto effect on 15 November 1997 O BSI 1997 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee W539, Ceramic tiies and other rigid tiling, upon which the following bodies were represented Association of Building Engineers Brit
4、ish Adhesives and Sealants Association British Ceramic Research Ltd. British Ceramic Tile Council Building Research Establishment Chartered Institute of Building Concrete Society Constsuction Confederation Consumer Policy Committee of BSI Contract Flooring Association Federation of Master Builders F
5、ederation of Resin Formulators and Applicators Health and Safety Executive Institute of Clerks of Works of Great Britain London Underground Ltd. Mortar Producers Association National Federation of Clay Industries National Federation of Terrazzo, Marble and Mosaic Specialists National Master Tile Fix
6、ers Association National lile, Faience and Mosaic Fixers Society Natural Slate Quarries Association Royal Institute of British Architects Stone Federation Amendments issued since publication Amd. No. I Date I Text affected The following BSI references relate to the work on this standard Committee re
7、ference BI539 Draft for comment 93/102979 DC ISBN O 680 28660 6 BS EN IS0 10645-12 : 1997 Contents Page Committees responsible Inside front cover National foreword 11 Foreword Method 1 Scope 1 2 Principle 1 3 Apparatusandmaterials 1 4 Test specimens 1 6 Impregnation with water 6 Procedure 1 2 7 Test
8、report 2 O BSI 1997 1 STD.BSI BS EN IS0 10545-12-ENGL L997 m Lb24bb7 Ob58998 985 E BS EN IS0 10545-12 : 1997 National foreword This British Standard has been prepared by Technical Committee B/539 and is the English hguage version of EN IS0 1054512 : 1997 Ceramic tiles -Pa.)- 12: Determination offros
9、t resistance, published by the European Committee for Standardization (CEN). It is technically equivalent to IS0 1054512 : 1993, including its Technical Corrigendum 1 : 1997, published by the International Organization for Standardization (ISO). It supersedes BS 6431 : Part 22 : 1986, which will be
10、withdrawn when Parts 1 to 16 of BS EN IS0 10545 have all been pubiished. This Part of BS EN IS0 10545 was originally drafted by CENAC 67, Ceramic tiles, as EN 202, published in 1985, and confirmed in 1991. Subsequently the European Standard was revised by IS0 as a Part of IS0 10545, which has now be
11、en approved by CEN as a Part of EN IS0 10545. The editorial modification mentioned in the EN IS0 foreword has been made in this BS EN IS0 text. The technical changes from the method described in BS 6431 : Part 22 are as follows. The tiles are cycled between +5 “C and -5 “C for at least 100 freeze-th
12、aw cycles. Before freezing, the tiles are saturated with water by the vacuum method only, regardless of their water absorption. 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,
13、 pages i and ii, the EN IS0 title page, the EN IS0 foreword page, pages 1 to 2, an inside back cover and a back cover. 11 O BSI 1997 STD-BSI BS EN IS0 10545-12-ENGL 1977 W 1624bb7 b58797 11 EN IS0 1054512 July 1997 ICs 91.100.20 Descriptors: Ceramics, tiles, tests, freezing tests, determination, the
14、rmal resistance Supersedes EN 202 : 1991 Enghsh version Ceramic tiles- Part 12: Determination of frost resistance (IS0 1054512 : 1995, including Technical Corrigendum 1 : 1997) Carreaux et dalles cramiques - Partie 12: Dtennination de la rsistance au gel (IS0 1054512 : 1995, Rectificatif Technique 1
15、 : 1997 inclus) Keramische Fliesen und Platten - Teil 12: Bestimmung der Frostbestandigkeit (IS0 1054512 : 1995, einschlieBlich Technische Korrektur 1 : 1997) This European Standard was approved by CEN on 1997-0501. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipu
16、late the conditions for giving this European Standard the status of a national standard without any alteration. Upto-date lists and bibliographica references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. ”us European Standard exist
17、s in 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 standars bodie
18、s of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fur Normu
19、ng Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1997 CEN - Ail rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 1054512 : 1997 E STD-BSI BS EN IS0 LOSY5-LZ-ENGL 1777 M lb24bb7 Ob57000 131 EN IS0 10545-12 : 1997 Foreword Th
20、e text of the International Standard from Technical Committee ISOITC 189, Ceramic tiles, of the International Organization for Standardization OSO) has been taken over as a European Standard by Technical Committee CENITC 67, Ceramic tiles, the secretariat of which is held by UNI. This European Stand
21、ard supersedes EN 202 : 1991. EN IS0 10545 consists of the following Pasts, under the common title Cemmic tes. Part 1: Part 2: Part 3: Part 4: Part 5: Part 6: Part 7: Part 8: Part 9: Part 10: Part 11: Part 12: Part 13: Part 14: Part 15: Part 16: Part 17: Sa,mpling and basis for acceptance Determinat
22、ion of dimenswns and su?face quality Deknrrination of water absorption, apparent porosity, apparent relatiw density and bulk density Determination of modulus of rupture and breaking strength Determination of impact resistance by measurement of coefficient of restitution Determination of resistance t
23、o is the mass of each wet tile. 6 Procedure Select one of the thickest tiles that is under test. It shall be one that is considered to have representative properties of that test sample. Drill a 3 mm diameter hole from the centre of one edge to a maximum dis- tance of 40 mm from the edge of the tile
24、. Insert a thermocouple (3.7) and seal the hole with a piece of thermally insulating material (for example expanded polystyrene). If it is not possible to drill a hole in this way, place a thermocouple on the centre of one face of a tile and stick a second tile over this. Place all the tiles under t
25、est vertically in the freezer (3.4). sup- ported in such a way that there is a space between each one and an air flow over all the surfaces. Place the.tile with the thermocouple in the middle of the test samples. The temperature of the thermocouple defines the temperature of all the tiles under test
26、. Only in the case of repeated tests with similar test specimens can this be omitted, and then occasional checks shall be made with a thermocouple in a tile. All temperature measurements shall be accurate to I 0.5 “C. Lower the tile temperature to - 5 “C at a rate not ex- ceeding 20 “C/h. Maintain t
27、he tile temperature below - 5 “C for 15 min. Immerse the tile in or spray it with water (3.6) until a tile temperature above + 5 OC is reached. Maintain the tile temperature above + 5 OC for 15 min. Repeat the cycle a minimum of 1 O0 times. Interruption of the cycles shall be permitted only if the t
28、iles are kept submerged in water above + 5 OC. Weigh the tiles after the test (m,) and then dry them to constant mass (m4). The final water absorption, 4, expressed as a percentage by mass, is calculated using the equation m3-m4 x100 m4 is the mass of each dry tile after the test. After 100 cycles,
29、examine the glazed or proper sur- faces and the edges of the tiles with the naked eye or with spectacles if usually worn, at a distance of 25 cm to 30 cm with an illumination of approximately 300 Ix. They may be examined at intermediate stages to expedite the reporting, if there is reason to believe
30、 that they might sustain damage relatively early in the test. Record all damage that is observed on the glazed or proper surfaces and the edges of the tiles. 7 Test report The test report shall include the following information: reference to this part of IS0 10545; an identification of the tiles, in
31、cluding any surface relief, if necessary; the number of test specimens in the sample; the initial water absorption, E,; the final water absorption, &; a description of defects before the test and all damage on the glazed or proper surfaces and the edges of the tiles after the freeze-thaw test; the n
32、umber of damaged tiles after 1 O0 cycles. 2 O BSI 1997 BS EN IS0 10545-12 : 1997 BSI 389 Chiswick High Road London w4 4AL BSI - Eritish Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the in
33、ternational level. It is uicorporated by Royal Charter. Contract requirements A British Standard does not purport to include all the necessary provisions of a Eontract. Users of British Standards are responsible for their correct application. Revisions British Standards are updated by amendment or r
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