EN 538-1994 en Clay Roofing Tiles for Discontinuous Laying - Flexural Strength Test《不连续铺设用粘土屋面瓦 弯曲强度试验》.pdf
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1、 CEN EN*538 94 m 3404589 O076947 O99 m BRITISH STANDARD Clay roofing tiles for discontinuous laying - Flexural strength test The European Standard EN 538 : 1994 has the status of a British %andard UDC 691.424 ti66.74 621) 17 BS EN 538 : 1994 CEN EN*538 94 3404589 0076748 T25 of the Standards Board a
2、nd comes into effect on 15 December 1994 G BSI 1994 Amd. No. BS EN 538 : 1994 Date Text affected Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following co
3、untries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisliito, r. y. Association franais
4、e de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization Technological Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseri
5、ngsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiseringskommissionen i Sverige Association suisse de normalisation British Standards Institution The following BSI references relate to the work on this standard: committee reference BI54213 Draft for
6、 comment 91116433 DC ISBN O 580 23104 6 CEN EN*53 74 3404587 0076949 761 BS EN 538 : 1994 Contents Cooperating organizations National foreword Page Inside front cover i Foreword 2 Txt of EN 538 3 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative)
7、 Cross-references Inside back cover National foreword This British Standard has been prepared under the direction of %chnical Committee B/542, Roofing and cladding products for discontinuous laying, and is the Enghsh language version of EN 538 : 1994, Clay roofing tiles for discontinuous laying - Fl
8、exural strength test, published by the European Committee for Standardization (CEN). EN 538 partially replaces BS 402 : 1990, which will be withdrawn in due course. EN 538 was produced as a result of international discussions in which the UK took an active part. Compliance with a British Standard do
9、es not of itself confer immunity from legal obligations. i _ CEN EN*538 94 m 3404589 0076950 683 m EUROPEAN STANDARD EN 538 NORME EUROPENNE EUROPISCHE NORM May 1994 UDC 69 1.424.666.74: 620.17 Descriptors: Ceramics, roofing tiles, determination, flexural strength, break strength English version Clay
10、 roofing tiles for discontinuous laying - Flexural strength test Tuiles de terre cuite pour pose en discontinu - Dtermination de la rsistance la rupture par flexion Tondachziegel fr berlappende Verlegung - Prfung der Biegetragfhigkeit This European Standard was approved by CEN on 1994-05-18. CEN mem
11、bers are bound to comply with the CENXENELEC 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 bibliographical references concerning such national standards may be obtained on applicati
12、on 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 member into its own language and notified to the Central Secretariat has the s
13、ame status as the official versions. CEN membeis are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardiza
14、tion Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1994 Copyright reserved to CEN members Ref. No. EN 538 : 1994 E Previous page is blank CEN ENt538 94 m 3404589 0076953 5LT m Foreword This European Standard has been prepared
15、 by CEN/TC 128, Roof covering products for discontinuous laying, the Secretariat of which is held by ON. 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 1994, and conflicting national sta
16、ndards shall be withdrawn at the latest by November 1994. According to the CENKENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Po
17、rtugal, Spain, Sweden, Switzerland, United Kingdom. Contents Foreword 1 Scope 2 Normative references 3 Symbols and abbreviations 4 Test principle 5 Samples 6 Apparatus 7 Test procedure 7.1 Plain tiles 7.2 Tiles with sidelock and headlock, tiles with sidelock only, and overlapping tiles 7.3 Over and
18、under tiles 7.3.1Tiles without nibs 7.3.2Tiles with nib(s) with or without flat bottom 8 Testreport page 2 3 3 3 3 3 3 3 3 4 4 4 4 8 CEN EN*538 94 3404589 0076952 456 = 1 Scope This European Standard describes the test method used to evaluate the flexural strength of clay roofing tiles as defined in
19、 the standard EN 1304 Clay roofing tiles - Product definitions and specifkations. Other physical characteristics are dealt with by the standard EN 539 Clay roofing tiles - Determination of physical characteristics: Impermeability and frost resistance. 2 Normative references This European Standard in
20、corporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this
21、European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 1304 EN 539 EN 539-1 Impermeability test EN 539-2 Frost tests) IS0 48 : 1979 Clay rwfing tiles - Product - a system used as lower bearers and
22、, depending on the type of tile, either made up of rods or half-rods, one of which is articulated in order to rotate in a vertical plane and obtain as uniform a load distribution as possible on the sample, or for some over and under tiles by a flat plate supporting the tile; - a rand steel bar fitte
23、d to the bottom of the load application device. The upper and lower bearers shall have a radius of between 15 mm and 20 mm and a length greater than the width of the tile to be tested; - a set of hardwood shims used for chocking the lower bearers as defined in 7.2; - a hardwood shim adapted to the s
24、hape of the tile as defined in 7.2, should this chocking system be preferred to the plaster shim type; For apparatus where the weight of the tile and fittings is taken into account when reading the load, the corresponding tare is not included in the failure load value. 7 bst procedure 7.1 Plain tile
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