SIST EN 12058:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HYHNatursteinprodukte - Bodenplatten und Stufenbeläge - AnforderungenProduits en pierre naturelle - Plaquettes modulaires - ExigencesNatural stone products - Slabs for floors and stairs - Requirements91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 12058:2015SIST EN 12058:2015en,fr,de01-maj-2015SIST EN 12058:2015SLOVENSKI
STANDARDSIST EN 12058:20041DGRPHãþD



SIST EN 12058:2015



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12058
March 2015 ICS 91.100.15 Supersedes EN 12058:2004English Version
Natural stone products - Slabs for floors and stairs - Requirements
Produits en pierre naturelle - Dalles de revêtement de sol et d'escalier - Exigences
Natursteinprodukte - Bodenplatten und Stufenbeläge - Anforderungen This European Standard was approved by CEN on 3 January 2015.
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 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 responsibility 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12058:2015 ESIST EN 12058:2015



EN 12058:2015 (E) 2 Contents Page Foreword .4 1 Scope .5 2 Normative references .5 3 Terms and definitions .5 4 Characteristics of natural stone slabs .7 4.1 Geometrical characteristics .7 4.1.1 General .7 4.1.2 Dimensions .7 4.1.3 Flatness .7 4.1.4 Length and width .8 4.1.5 Special shapes .8 4.1.6 Commercial sizes of slabs for floors and stairs .8 4.1.7 Surface finish .9 4.2 Physical and mechanical characteristics .9 4.2.1 General .9 4.2.2 Denomination .9 4.2.3 Visual appearance .9 4.2.4 Flexural strength . 11 4.2.5 Bond strength/adhesion . 11 4.2.6 Water absorption at atmospheric pressure . 11 4.2.7 Reaction to fire . 11 4.2.8 Water absorption by capillarity . 11 4.2.9 Apparent density and open porosity . 11 4.2.10 Durability . 12 4.2.11 Thermal shock resistance . 12 4.2.12 Water vapour permeability . 12 4.2.13 Slip resistance . 12 4.2.14 Skid resistance . 12 4.2.15 Tactility . 13 4.2.16 Direct airborne sound insulation . 13 4.2.17 Thermal conductivity . 13 4.2.18 Release of dangerous substances . 13 5 Testing, assessment and sampling methods . 13 5.1 Testing . 13 5.2 Sampling . 13 5.2.1 General . 13 5.2.2 Principles of sampling . 14 5.2.3 Taking bulk samples . 14 5.2.4 Preparing a sampling plan . 14 5.2.5 Sampling apparatus . 14 5.2.6 Sampling methods . 14 5.2.7 Marking, packaging and dispatch of the samples . 16 5.2.8 Sampling report . 16 6 Assessment and verification of constancy of performance - AVCP . 17 6.1 General . 17 6.2 Type Testing . 18 6.2.1 General . 18 6.2.2 Test samples, testing and compliance criteria . 18 SIST EN 12058:2015



EN 12058:2015 (E) 3 6.2.3 Test reports . 19 6.2.4 Shared other party results . 20 6.2.5 Cascading determination of the product type results . 20 6.3 Factory production control (FPC) . 21 6.3.1 General . 21 6.3.2 Requirements . 22 6.3.3 Product specific requirements . 25 6.3.4 One-off products, pre-production products (e.g. prototypes) and products produced in very low quantity . 26 6.3.5 Procedure for modifications. 27 7 Marking and packaging . 27 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation . 29 ZA.1 Scope and relevant characteristics . 29 ZA.2 Procedure for AVCP of natural stone for floorings and stairs . 32 ZA.2.1 System(s) of AVCP . 32 ZA.2.2 Declaration of performance (DoP) . 35 ZA.2.2.1 General . 35 ZA.2.2.2 Content. 36 ZA.2.2.3 Example of DoP . 36 ZA.2.2.3.1 Example of DoP for slabs for internal use . 36 ZA.2.2.3.2 Example of DoP for slabs for external use . 38 ZA.3 CE marking and labelling. 40 Bibliography . 44
SIST EN 12058:2015



EN 12058:2015 (E) 4 Foreword This document (EN 12058:2015) 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 status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2015, and conflicting national standards shall be withdrawn at the latest by December 2016. Attention is drawn to the possibility that some of the elements of this document may be the 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 12058:2004. EN 12058:2015 includes the following significant technical changes with respect to EN 12058:2004: − nominal thickness tolerances changed; − durability, skid resistance, direct airborne sound insulation, thermal conductivity, release of dangerous substances added to requirements; − sampling at the point of delivery added to the sampling; − assessment and verification of constancy of performance added; − Annex ZA substantially changed. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports basic requirements for construction works of Regulation (EU) No.305/2011 on Construction Products. For relationship with the Regulation, see informative Annex ZA, which is an integral part of this document. This European Standard is one of a series of standards for specifications of natural stone products which includes the following: — EN 1467, 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, Natural stone products — Dimensional stone work — Requirements. According to the CEN/CENELEC Internal Regulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12058:2015



EN 12058:2015 (E) 5 1 Scope This European Standard specifies requirements for flat natural stone slabs used as paving units for internal (including enclosed public transport premises) and/or external uses in floors and stairs including skirtings. This European Standard does not cover mineral aggregates and artificial agglomerated stone material and does not cover installation. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1745, Masonry and masonry products - Methods for determining thermal properties EN 1925, Natural stone test methods - Determination of water absorption coefficient by capillarity EN 1936, Natural stone test methods - Determination of real density and apparent density, and of total and open porosity EN 12371, Natural stone test methods - Determination of frost resistance EN 12372, Natural stone 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 13373, Natural stone test methods - Determination of geometric characteristics on units EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 13755, Natural stone test methods - Determination of water absorption at atmospheric pressure EN 14066, Natural stone test methods - Determination of resistance to ageing by thermal shock EN 14157, Natural stone test methods - Determination of the abrasion resistance CEN/TS 16165:2012, Determination of slip resistance of pedestrian surfaces - Methods of evaluation EN ISO 10456, Building materials and products - Hygrothermal properties -Tabulated design values and procedures for determining declared and design thermal values (ISO 10456) EN ISO 12572, Hygrothermal performance of building materials and products - Determination of water vapour transmission properties (ISO 12572) 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 slab for floors flat piece of natural stone obtained by cutting or splitting at a nominal thickness > 12 mm SIST EN 12058:2015



EN 12058:2015 (E) 6 3.2 slab for stairs flat piece of natural stone obtained by cutting or splitting at a nominal thickness > 12 mm to form the horizontal part of a stair step (tread) or the vertical part of a stair step (riser) 3.3 dimensions of rectangular slabs for floors length l, width b and thickness d are the dimensions of a slab for floors, given in the stated sequences in millimetres (see Figure 1)
Figure 1 — Dimensions of slabs for floors 3.4 dimensions of rectangular slabs for stairs length l, width b and thickness d are the dimensions of a slab for stairs, separated for treads and risers, given in the stated sequences in millimetres (see Figure 2)
Key 1 tread 2 riser Figure 2 — Dimensions of slabs for stairs SIST EN 12058:2015



EN 12058:2015 (E) 7 3.5 lower expected value lower expected value (EL) corresponds to the 5 %-quantile of a logarithmic normal distribution for a confidence level of 75 % 3.6 higher expected value higher expected value (EH) corresponds to the 95 %-quantile of a logarithmic normal distribution for a confidence level of 75 % 3.7 skirting flat piece of natural stone obtained by cutting or splitting at a nominal thickness larger than 12 mm, laid on each wall surrounding a flooring and in contact with it 4 Characteristics of natural stone slabs 4.1 Geometrical characteristics 4.1.1 General All measurements shall be carried out in accordance with EN 13373 and all measured values of individual units shall fall within the required tolerances. 4.1.2 Dimensions The thickness shall be measured in accordance with EN 13373 and the measured values shall not deviate from the nominal thickness by more than the tolerances given in Table 1. Table 1 — Tolerances on the nominal thickness Nominal thickness in mm Tolerance More than 12 Up to and including 30 ±10 % More than 30 Up to and including 80 ±3 mm More than 80 ±5 mm Stricter deviations may be declared by the manufacturer. NOTE If the slab is to be fixed by adhesives or a thin mortar bed, stricter deviations may be needed. The required thickness of slabs for floors and stairs shall result from a structural analysis or similar procedure which takes into account the technical and physical properties of the stone and the intended application. Visible edges shall be gauged. For natural cleft/riven faces, Table 1 does not apply and the deviations shall be set out by the manufacturer. 4.1.3 Flatness The deviation from flatness of the surface (except for natural cleft faces) when measured in accordance with EN 13373 shall not exceed 0,2 % of the slab length, and shall not exceed 3 mm. For natural cleft faces, the deviation on flatness shall be set out by the manufacturer. SIST EN 12058:2015



EN 12058:2015 (E) 8 4.1.4 Length and width The length or width shall not deviate from the nominal size by more than given in Table 2. Table 2 — Tolerances on length and width Nominal length or width < 600 mm ≥ 600 mm Sawn edges thickness ≤ 50 mm ±1 mm ±1,5 mm Sawn edges thickness > 50 mm ±2 mm ±3 mm Stricter deviations may be declared by the manufacturer. For natural cleft/riven edges, Table 1 does not apply and the tolerances on length, width and squareness shall be set out by the manufacturer. 4.1.5 Special shapes The permissible deviation at any point shall be as stated in Table 2 (see Figure 3). Each slab angle shall be in accordance with the agreed geometry. Pieces of special or irregular shape shall be checked for compliance with the required shape by use of a suitable template, the permissible tolerance at any point shall be as stated in Table 2 (see Figure 3). Stricter deviations may be declared by the manufacturer. Dimensions in millimetres
Key 1 nominal size 2 the slab sides shall fall within the two dotted lines indicating the tolerances of length and width according to Table 2. Figure 3 — Example of tolerances on angles 4.1.6 Commercial sizes of slabs for floors and stairs Commercial sizes shall be based on the area of the smallest possible circumscribed rectangle measured in square metres accurate to two decimal places. SIST EN 12058:2015



EN 12058:2015 (E) 9 4.1.7 Surface finish 4.1.7.1 General Surface finishes shall extend uniformly to the edges of the slabs for floors and stairs. The surface finishing of some types of stones may typically involve the use of patching, fillers or other similar products for natural holes, faults or cracks; 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. 4.1.7.2 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 on all exposed surfaces (e.g. making reference to samples, see 4.2.3), agreed in accordance with samples submitted and agreed beforehand between the purchaser and supplier. For definitions of surface finishes see EN 12670. 4.2 Physical and mechanical characteristics 4.2.1 General Whenever stone processing is likely to change the characteristics of the raw material (e.g. as a consequence of the type of processing or because the use of patching, fillers or other similar products for natural holes, faults, cracks and similar), then this has to be considered when determining the characteristics requested by this document. 4.2.2 Denomination When required this characteristic shall be declared in accordance with EN 12440 (it means traditional name, petrological family, typical colour and place of origin). 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 4.2.3.1 General When required this characteristic shall be declared. The colour, veining, texture, etc. of the stone shall be identified visually, typically by a reference sample of the same stone suitable for providing a general description of visual appearance. The reference sample shall be provided by the supplier. 4.2.3.2 Reference sample, visual inspection and acceptance criteria A reference sample shall be an adequate number of pieces of natural stone of sufficient size to indicate the general appearance of the finished work. The dimensions of individual pieces shall be at least 0,01 m2 (typical values are between 0,01 m2 and 0,25 m2 in face area but may be more), and shall indicate the range of appearance regarding the colouring, the vein pattern, the physical structure and the surface finish. In particular the reference sample shall show specific characteristics of the stone, such as typical holes, glass seams, spots and crystalline veins. The reference sample does not imply strict uniformity between the sample itself and the actual supply; natural variations may always occur. SIST EN 12058:2015



EN 12058:2015 (E) 10 If the processing of the stone involves the use of patching, fillers or other similar products for natural holes, faults or cracks, then the reference sample shall similarly display the impact of the same on the finished surface. All the characteristics as shown by the reference sample shall be considered typical of the stone and not as flaws, therefore they shall not become a reason for rejection, unless their concentration becomes excessive and the typical character of the stone is lost. The name and address of the producer or the supplier, as well as the denomination of the stone in accordance with 4.2.2 above, shall be indicated on the reference sample. Any comparison between production sample and reference sample shall be carried out by placing the reference sample against the production samples and viewing them at a distance of about two metres under normal daylight conditions and recording any visible differences in the characteristics of the stones (see Figure 4).
Key 1 reference sample 2 production sample 3 daylight Figure 4 — Comparison between production sample and reference sample SIST EN 12058:2015



EN 12058:2015 (E) 11 4.2.4 Flexural strength When required this characteristic shall be declared. The flexural strength shall be determined using the test method in EN 12372 and the mean value, lower expected value and standard deviation shall be declared. Where the surface finish of the delivered product has an influence on the characteristic, the test shall be carried out with this finish, in accordance with the technological tests defined in EN 12372. 4.2.5 Bond strength/adhesion The value of the bond strength adhesion depends on the condition of the layer, the type of adhesive/mortar and the surface finish of the back face. 4.2.6 Water absorption at atmospheric pressure When required the water absorption shall be determined using the test method in EN 13755 and the higher expected value (EH) shall be declared. 4.2.7 Reaction to fire When required this characteristic shall be declared. Natural stones are considered reaction to fire Class A1 following Commission Decision 96/603/EC, as amended, with the following exceptions. — Natural stones containing asphalt at greater than 1 % by mass or volume, whichever is the more onerous, and having a final use subject to fire regulations, shall be tested for reaction to fire and classified in accordance with EN 13501-1. — Whenever processing of natural stones involves the use of organic patching, fillers or other similar products for natural holes, faults, cracks or similar, at greater than 1 % by mass or volume, whichever is the more onerous and the same stones have a final use subject to fire regulations, then they shall be tested for reaction to fire and classified in accordance with EN 13501-1. 4.2.8 Water absorption by capillarity When required this characteristic shall be declared (e.g. when the slab for floors and stairs is to be used for elements in contact with a horizontal surface where water may be present). The water absorption by capillarity shall be determined using the test method in EN 1925 and the higher expected value (EH) shall be declared. For stone having an open porosity less than 1,0 % this test shall not be performed. 4.2.9 Apparent density and open porosity When required this characteristic shall be declared. The apparent density and open porosity shall be determined using the test method in EN 1936 and the mean values of the results expressed accordingly. SIST EN 12058:2015



EN 12058:2015 (E) 12 4.2.10 Durability 4.2.10.1 Durability of flexural strength against freeze–thaw When required this characteristic shall be determined using the test method in EN 12371 and the results declared: — as the value of the flexural strength without frost and after 56 freeze/thaw cycles by giving the mean value; — or in case the stone failed before 56 cycles, as the number of cycles necessary to initiate cracks, rupture, etc. For some specific uses it may be appropriate to use different test cycles, for example freezing in water, freezing to a lower temperature, or testing specimens embedded in non-porous siliceous granules or a different number of cycles. In these cases national provisions can be followed but these variations shall be clearly stated in the test report and in the product marking. NOTE The selection of the stone is subjected to climatic zone and/or to codes of practice. 4.2.10.2 Abrasion resistance This characteristic shall be declared, for slabs for flooring and stairs only, when subject to regulatory requirements or upon request. The abrasion resistance shall be determined using the test method in EN 14157 and the higher expected value (EH) shall be declared and expressed in millimetres when under method A or in cm3/50cm2 under method B. 4.2.11 Thermal shock resistance When required the resistance to thermal cycles shall be declare
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