1、June 2012 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 9
2、1.100.15; 73.020!$|vr“1898379www.din.deDDIN EN 1468Natural stone Rough slabs RequirementsEnglish translation of DIN EN 1468:2012-06Naturstein Rohplatten AnforderungenEnglische bersetzung von DIN EN 1468:2012-06Pierres naturelles Tranches brutes ExigencesTraduction anglaise de DIN EN 1468:2012-06Supe
3、rsedesDIN EN 1468:2004-03www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 18 pages06.12 DIN EN 1468:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 246 “Nat
4、ural stones” (Secretariat: UNI, Italy). The responsible German bodies involved in its preparation were the Normenausschuss Materialprfung (Materials Testing Standards Committee) and the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Joint Technical Committee NA 062-03
5、-11 GA Naturwerkstein; Anforde-rungen, Prfverfahren und Terminologie. Amendments This standard differs from DIN EN 1468:2004-03 as follows: a) indication of the place of origin by GPS coordinates is now permitted (see 4.2.2); b) Annex A “Sampling” is now informative; c) the standard has been editori
6、ally revised. Previous editions DIN EN 1468: 2004-03 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1468 April 2012 ICS 73.020; 91.100.15 Supersedes EN 1468:2003English Version Natural stone - Rough slabs - Requirements Pierres naturelles - Tranches brutes - Exigences Naturstein - Rohplatten -
7、 Anforderungen This European Standard was approved by CEN on 9 March 2012. 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 bibliog
8、raphical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 responsib
9、ility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece
10、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form an
11、d by any means reserved worldwide for CEN national Members. Ref. No. EN 1468:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG EN 1468:2012 (E) 2 Contents Page Foreword 31 Scope 52 Normative references 53 Terms and definitions .54 Requirement
12、s .64.1 Requirements for geometric characteristics 64.1.1 Measurement criteria .64.1.2 Requirements for thickness .64.1.3 Requirements for flatness 64.1.4 Requirements for surface finish .64.2 Requirements of natural stones for rough slabs .74.2.1 General 74.2.2 Denomination .84.2.3 Visual appearanc
13、e .84.2.4 Apparent density and open porosity .84.2.5 Flexural strength 84.2.6 Other requirements85 Marking, packaging .96 Evaluation of conformity and factory production control .96.1 Evaluation for conformity .96.2 Initial type testing 96.3 Factory production control 10Annex A (informative) Samplin
14、g . 12A.1 General . 12A.2 Principles of sampling . 12A.3 Taking bulk samples 12A.4 Preparing a sampling plan . 12A.5 Sampling apparatus . 13A.6 Sampling methods 13A.6.1 General . 13A.6.2 Sampling from quarries . 13A.6.3 Sampling from plants . 14A.6.4 Sampling from buildings 14A.7 Marking, packaging
15、and dispatch of the samples . 14A.8 Sampling report 14Bibliography . 16DIN EN 1468:2012-06 EN 1468:2012 (E) 3 Foreword This document (EN 1468:2012) has been prepared by Technical Committee CEN/TC 246 “Natural stones”, the secretariat of which is held by UNI. This European Standard shall be given the
16、 status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. Attention is drawn to the possibility that some of the elements of this document may be th
17、e subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1468:2003. This European Standard is one of a series of standards for requirements of natural stone products which includes the following: EN 1467,
18、Natural stone Rough blocks Requirements EN 1468, Natural stone Rough slabs Requirements EN 1469, Natural stone products Slabs for cladding Requirements EN 12057, Natural stone products Modular tiles Requirements EN 12058, Natural stone products Slabs for floors and stairs Requirements EN 12059, Natu
19、ral stone products Dimensional stone work Requirements Other standards on natural stone are produced by a) CEN/TC 178 1) EN 1341, Slabs of natural stone for external paving Requirements and test methods 2) EN 1342, Setts of natural stone for external paving Requirements and test methods 3) EN 1343,
20、Kerbs of natural stone for external paving Requirements and test methods b) CEN/TC 128 1) EN 12326-1, Slate and stone products for discontinuous roofing and cladding Part 1: Product specification 2) EN 12326-2, Slate and stone products for discontinuous roofing and cladding Part 2: Methods of test f
21、or slate and carbonate slate c) CEN/TC 125 1) EN 771-6, Specification for masonry units Part 6: Natural stone masonry units Other standards are relevant to stone aggregates for concrete, roads, railways and armourstone. DIN EN 1468:2012-06 EN 1468:2012 (E) 4 According to the CEN/CENELEC Internal Reg
22、ulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, M
23、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 1468:2012-06 EN 1468:2012 (E) 5 1 Scope This European Standard specifies requirements for rough slabs of natural stone from which products for use in buildings
24、or commemorative stones and other similar applications are made. It does not cover artificially agglomerated stony material nor installation. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. Fo
25、r dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1936, Natural stone test methods - Determination of real density and apparent density, and of total and open porosity EN 12372, Natural sto
26、ne test methods Determination of flexural strength under concentrated load EN 12407, Natural stone test methods Petrographic examination EN 12440, Natural stone Denomination criteria EN 12670:2001, Natural stone Terminology EN 13161, Natural stone test methods Determination of flexural strength unde
27、r constant moment EN 13373, Natural stone test methods Determination of geometric characteristics on units NOTE Besides the European Standards for test methods mentioned in this clause there exist further standards which can be used for scientific examinations, but which are not relevant for the app
28、lication in practice according to this European Standard. 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12670:2001 and the following apply. 3.1 commercial size of a rough slab size obtained by reducing net length and net width by 0,03 m 3.2 dimensio
29、ns of a rough slab length, width (height) and thickness of a rough slab Note 1 to entry: Dimensions are given in metres to two decimals places for length and width, and in millimetres for thickness. 3.3 gross size of a rough slab size corresponding to the minimum circumscribed rectangle 3.4 net size
30、 of a rough slab size corresponding to the greatest inscribed rectangle DIN EN 1468:2012-06 EN 1468:2012 (E) 6 3.5 rough slabs flat surface semi-finished product with unfinished edges obtained by sawing or splitting from a rough block 4 Requirements 4.1 Requirements for geometric characteristics 4.1
31、.1 Measurement criteria All measurements shall be carried out in accordance with EN 13373 and indicated in metres to two decimals places. 4.1.2 Requirements for thickness The thickness shall not deviate from the nominal thickness by more than the tolerances given in Table 1. Table 1 Tolerances of th
32、e nominal thickness Nominal thickness Tolerance mm up to 15 1,5 mm more than 15 up to and including 30 10 % more than 30 up to and including 80 3 mm more than 80 5 mm Stricter tolerances may be declared by the manufacturer. For natural stone cleft/riven faces, the tolerances on thickness shall be de
33、clared by the manufacturer. 4.1.3 Requirements for flatness The deviation of the surface from flatness shall not exceed 0,2 % of the slab length and shall not exceed 3 mm. For split rough slabs, the tolerance on flatness shall be declared by the manufacturer. Stricter tolerances may also be declared
34、 by the manufacturer. 4.1.4 Requirements for surface finish 4.1.4.1 General Surface finishes shall be carried out at least to the edges of the commercial size of rough slabs. The surface finishing of some types of stones may typically involve the use of patching, fillers or other similar products fo
35、r natural holes, faults or cracks, and this is to be considered as part of the normal processing. In such cases, the type of treatment, as well as the type and nature of additional materials, shall be declared. The surface profile obtained by splitting shall be within declared tolerances. DIN EN 146
36、8:2012-06 EN 1468:2012 (E) 7 4.1.4.2 Requirements for surfaces obtained by sawing Grooves caused by sawing operations shall not have a depth greater than 2 mm. If the rough slab is to be polished, the grooves depth shall not be greater than 1 mm. Deviation from flatness shall be in accordance with 4
37、.1.3. 4.1.4.3 Requirements for surfaces after surface finishing Surfaces shall have a regular appearance as a function of the finishing process, and shall be worked to meet the specified finish (e.g. making reference to samples, see 4.2.2) on all exposed surfaces. NOTE 1 Surfaces obtained by means o
38、f hammer type tools are, for example: bush hammered surfaces (see EN 12670:2001, Definition 2.3.8 1); trimmed surfaces: finish obtained by using a pointed chisel and mallet or a grooving machine; striated surfaces: finish obtained by using a claw chisel (percussion tool for roughening a surface, wit
39、h the cutting end covered by several teeth of various sizes) or a ruling machine. NOTE 2 Surfaces obtained by other finishing operations are, for example: flamed finish (see EN 12670:2001, Definition 2.3.22 2); sand blasted finish (see EN 12670:2001, Definition 2.3.46 3); water jet streamed finish:
40、a matt textured surface finish, accomplished by exposing the surface to a steady jet of water under pressure; machine tooled finish (see EN 12670:2001, Definition 2.3.54 4); riven cut finish: rugged surface produced by splitting stone with a guillotine or chisel. 4.2 Requirements of natural stones f
41、or rough slabs 4.2.1 General The following characteristics shall be declared where requested by this European Standard, or with reference to use conditions. The declared values shall be representative of the current production. However, due to natural variations of the stone materials, deviations fr
42、om the declared values may occur. Expected deviations shall be indicated by the manufacturer. 1) EN 12670:2001, Definition 2.3.8: Finish obtained by using a bush hammer (percussion tool for roughening a surface, with a square head and with few pyramidal percussion teeth or points) or a bush hammerin
43、g machine (machine consisting of feed rolls and an overhanging beam, supporting a pneumatic bush hammer). 2) EN 12670:2001, Definition 2.3.22: Surface texture obtained by thermal treatment of the stone using a high temperature flame. 3) EN 12670:2001, Definition 2.3.46: A matt finishing resulting fr
44、om the impact of the sand or other abrasive grains expelled by a sand jet. 4) In EN 12670:2001, Definition 2.3.54, this term has two different meanings: a) finish resulting from the mechanical surface treatment with tools; b) dressed finish clearly showing tool marks. DIN EN 1468:2012-06 EN 1468:201
45、2 (E) 8 Rough slabs of natural stones may be back reinforced and glued by artificial resins. The possibility that stone processing is likely to change the characteristics of the raw material (e.g. in consequence of strong bush hammering of the surface, of flaming or heating, of back reinforcing the
46、slabs, or because of the use of artificial patching, fillers or other similar products for natural holes, faults, cracks and similar) shall be considered when determining the characteristics requested by this European Standard. 4.2.2 Denomination The denomination (traditional name, petrological fami
47、ly, typical colour and place of origin) shall always be declared in accordance with EN 12440. NOTE The place of origin can be given by GPS coordinates. The petrographic definition shall be determined in accordance with EN 12407. 4.2.3 Visual appearance This characteristic shall be declared upon requ
48、est. The colour, veining, texture, etc. of the stone shall be identified visually (for example by a polished reference sample). The reference sample shall be provided by the supplier. Any visual variations, for example inclusions and veins, are permissible, provided that they are characteristic of the relevant type of natural stone and provided that they do not adversely affect the performance
