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1、BRITISH STANDARD BS EN 12326-2:2000 Incorporating Amendment No. 1 Slate and stone products for discontinuous roofing and cladding Part 2: Methods of test The European Standard EN 12326-2:2000, with incorporation of amendment A1:2004, has the status of a British Standard ICS 91.100.15 ? Licensed Copy
2、: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12326-2:2000 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee an
3、d comes into effect on 15 June 2000 BSI 26 July 2004 ISBN 0 580 34588 2 National foreword This British Standard is the official English language version of EN 12326-2:2000, including amendment A1:2004. The start and finish of text introduced or altered by amendment is indicated in the text by tags !
4、“. Tags indicating changes to text carry the number of the amendment. For example, text altered by CENELEC amendment A1 is indicated by !“. The UK participation in its preparation was entrusted by Technical Committee B/542, Roofing and cladding products for discontinuous laying, to Subcommittee B/54
5、2/7, Natural slates and stone, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be foun
6、d in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are respo
7、nsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep t
8、he UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 58, an inside back cover and a back cover. The BSI copyright notice displayed
9、in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1516626 July 2004See national foreword Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE
10、EUROPISCHE NORM EN 12326-2 February 2000 + A1 July 2004 ICS 91.100.15 English version Slate and stone products for discontinuous roofing and cladding - Part 2: Methods of test (includes amendment A1:2004) Ardoises et lments en pierre pour toiture et bardage pour pose en discontinu Partie 2: Mthodes
11、dessais (inclut lamendement A1:2004) Schiefer- und andere Natursteinprodukte fr Dachdeckungen fr berlappende Verlegung und Auendwandbekleidungen - Teil 2: Prfverfahren (enthlt nderung A1:2004) This European Standard was approved by CEN on 24 December 1999. Amendment A1 was approved by CENELEC on 200
12、3-04-01. CEN members are bound to comply with the CEN/CENELEC 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 obta
13、ined 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 member into its own language and notified to the Central Secr
14、etariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Po
15、rtugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means re
16、served worldwide for CEN national Members. Ref. No. EN 12326-2:2000 + A1:2004 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12326-2:2000 BSI 26 July 2004 Contents 1 Scope 4 2 Normative references 4 3 Definitions and symbols 4 4
17、 Surveillance sampling procedure 8 5 Determination of the length and width and the deviation from the specified length and width 9 6 Determination of the amount by which the edges deviate from a straight edge 9 7 Determination of the rectangularity of slates 11 8 Determination of thickness 12 9 Dete
18、rmination of the deviation from flatness 15 10 Determination of failure load in bending 17 11 Water absorption test 21 12 Freeze-thaw test 23 13 Determination of non-carbonate carbon content 25 14 Determination of carbonate content 30 15 Sulfur dioxide exposure tests 40 16 Thermal cycle test 49 17 P
19、etrographic examination 51 Annex A (informative) Petrographic interpretation 56 Bibliography 58 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12326-2:2000 BSI 26 July 2004 Foreword This European Standard has been prepared by Tech
20、nical Committee CEN/TC 128, Roof covering products for discontinuous laying and products for wall cladding, the Secretariat of which is held by IBN. 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
21、 August 2000, and conflicting national standards shall be withdrawn at the latest by August 2000. 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, Denmar
22、k, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. EN 12326 is one of a series of standards for slate and stone products for roofing and is published in two parts as follows: Part 1: Product spec
23、ification Part 2: Methods of test Foreword to amendment A1 This document (EN 12326-2:2000/A1:2004) has been prepared by Technical Committee CEN/TC 128, Roof covering products for discontinuous laying and products for wall cladding, the Secretariat of which is held by IBN. This Amendment to the Europ
24、ean Standard EN 12326-2:2000 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2004, and conflicting national standards shall be withdrawn at the latest by December 2004. According to the CEN/CENELEC Internal Reg
25、ulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
26、Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 12326-2:2000 BSI 26 July 2004 1 Scope This part of EN 12326 specifies test methods for
27、 roofing and wall cladding slates and other stones. It is applicable to natural roofing products as defined in prEN 12326-1:1999 used for assembly into discontinuous roofs and wall cladding. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from ot
28、her 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 European Standard only when incorporated into it by amendment
29、 or revision. For undated references the latest edition of the publication referred to applies. EN 196-21 Methods of testing cement - Determination of the chloride, carbon dioxide and alkali content of cement prEN 12326-1:1999 Slate and stone products for discontinous roofing and cladding Part 1: Pr
30、oduct specification 3 Definitions and symbols 3.1 Definitions For the purposes of this European Standard the following definitions apply: 3.1.1 test piece (of slate): A piece sawn from a slate and prepared for testing as defined by the relevant test procedure. 3.1.2 powdered test piece (of slate): A
31、 piece or pieces of a slate or slates prepared for testing by grinding to a powder of a defined particle size. 3.1.3 sampling: The process of selecting a slate or a set of slates for testing. 3.1.4 constant mass: Mass achieved when two successive weightings taken 24 h apart do not differ by more tha
32、n 0,001 g. 3.1.5 Students t-test: A standard parametric statistical test used to test hypotheses about population means when the variance(s) are known (see ISO 3534-1:1993). In this European Standard it is used to test for significant differences between the means of two populations. 3.1.6 modulus o
33、f rupture: Maximum stress sustained by a slate test piece when a bending moment is applied. (In this standard the geometry of the test is three point bending). Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 12326-2:2000 BSI 26 Jul
34、y 2004 3.2 Symbols Symbol Physical quantity Unit Aw water absorption % A rate of application of stress in the bend strength test mPa/s b width of a slate or a test piece mm Ca mass percentage of carbonate in a standard preparation of calcium carbonate and silica % Ca apparent mass percentage calcium
35、 carbonate in slate % Cc carbonate carbon content of slate % c C mean carbonate carbon content of a slate % Cd carbon dioxide content of a test piece or standard preparation % Cd1 volume of carbon dioxide evolved from a powdered test piece in the determination of carbonate content by calcimetry % Cd
36、2 volume of carbon dioxide evolved from a standard preparation in the determination of carbonate content by calcimetry % Ct mass percentage carbonate content of a slate or a powdered test piece % t C mean mass percentage carbonate content of a slate % CT total carbon in a slate % Cnc non-carbonate c
37、arbon in a slate % e thickness of a slate mm em mean of three thickness measurements used to determine the rate of application of load in the bend strength test mm emax maximum of four thickness measurements carried out on one slate test piece mm e mean thickness of a slate test piece or series of t
38、est pieces mm Ed maximum deviation of the thickness of a slate from the mean thickness % es thickness of the softened layer in the SO2 exposure test mm e1A to e4A individual thickness measurements in the SO2 exposure test mm E1 conductivity reading for total carbon S/m E2 conductivity reading for no
39、n-carbonate carbon S/m Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 12326-2:2000 BSI 26 July 2004 f gas volume reduction factor of the pump in the determination of non- carbonate carbon content by coulometry - f gas volume reduc
40、tion factor of the pump in the blank determination of non-carbonate content by coulometry - f1f2 means of three dial gauge readings in the flatness test mm fd deviation from flatness of a slate mm Fd deviation from flatness of a slate as a percentage of its length % I number of pulses recorded in th
41、e determination of non-carbonate carbon content by coulometry - I number of pulses recorded in the blank determination of non-carbonate carbon content by coulometry - k proportionality factor specific to the apparatus in the determination of non-carbonate carbon content by coulometry - K wavelength
42、of the radiation used in the x-ray diffraction analysis nm ls length of a slate mm lt distance between the bending supports to base mm mo dry mass of a test piece in the water absorption test g mp mass of a powdered test piece of slate mg mc mass of a powdered test piece used for total carbon in the
43、 determination of carbonate content by the conductivity of sodium hydroxide mg mnc mass of a powdered test piece for non-carbonate carbon in the determination of carbonate content by the conductivity of sodium hydroxide mg ms mass of calcium carbonate used in the determination of carbonate content b
44、y conductivity of sodium hydroxide mg mw wet mass of a test piece in the water absorption test g m1 total carbon content in the determination of carbonate content by catalytic thermal decomposition % m2 content of non-carbonate carbon in the determination of carbonate content by catalytic thermal de
45、composition % m3 content of carbonate carbon in the determination of carbonate content by catalytic thermal decomposition % n number of slates subject to a test - Pi failure load of individual slates in the bending strength test N Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:03:34 GMT+0
46、0:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 12326-2:2000 BSI 26 July 2004 rd individual measurements of the deviation of a slate from a rectangle mm rdmax maximum deviation of a slate from a rectangle mm Rd deviation of a test slate from a rectangle as a percentage of its length % R Ri modulus o
47、f rupture of test slates MPa R sample mean modulus of rupture of test slates MPa l R sample mean modulus of rupture of test slates measured in the longitudinal orientation MPa t R sample mean modulus of rupture of test slates measured in the transverse orientation MPa Rc characteristic modulus of ru
48、pture of test slates MPa 1 R sample mean modulus of rupture of the control test pieces in the freeze-thaw test MPa 2 R sample mean modulus of rupture of the frost exposed test pieces in the freeze-thaw test MPa s sample standard deviation of the modulus of rupture - sl sample standard deviation of t
49、he modulus of rupture in the longitudinal orientation - st sample standard deviation of the modulus of rupture in the transverse orientation - s1 sample standard deviation of the modulus of rupture of the control test pieces after the freeze-thaw test - s2 standard deviation of the modulus of rupture of the frost exposed test pieces after the freeze-thaw test - sd deviation of the edge of a slate from a straight edge mm Sd deviation of the edge of a slate from a straig
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