EN 12467:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fibre-cement flat sheets - Product specification and test methodsPlaques planes en fibres-ciment - Spécifications du produit et méthodes d'essaiFaserzement-Tafeln - Produktspezifikation und Prüfverfahren91.100.40YODNQLProducts in fibre-reinforced cementICS:SIST EN 12467:2005enTa slovenski standard je istoveten z:EN 12467:200401-marec-2005SIST EN 12467:2005SLOVENSKI
STANDARDSIST EN 12467:2002/AC:2002SIST EN 12467:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12467
December 2004 ICS 91.100.40 Supersedes EN 12467:2000 English version
Fibre-cement flat sheets - Product specification and test methods
Plaques planes en fibres-ciment - Spécifications du produit et méthodes d'essai
Faserzement-Tafeln - Produktspezifikation und Prüfverfahren This European Standard was approved by CEN on 21 May 2004.
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 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 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, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12467:2004: E

Consignment inspection sampling.35 Annex B (normative)
Statistical method for determining the corresponding wet values or revised dry specifications for the MOR when carrying out the dry method of test or when tested prior to coating for quality control purposes.36 B.1 Procedure.36 B.2 Determination of the correlation between the results of testing wet and dry specimens.36 B.3 Determination of the regression line.37 B.4 Determination of a value for wet testing from an obtained value for dry testing.37 B.5 Determination of the minimum value specified for dry testing xstd corresponding to the minimum value specified for wet testing in this document ystd.38 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive.40 ZA.1 Scope and relevant characteristics.40 ZA.2 Procedure for the attestation of conformity of fibre cement flat sheets.41 ZA.2.1 Systems of attestation of conformity.41 ZA.2.2 EC Declaration of conformity.43 ZA.3 CE marking.44 Annex ZB (informative)
Survey of legislation relating to EC Directive 76/769/EEC.45 Bibliography.52

1 Scope This document specifies the technical requirements and establishes methods of inspection and test as well as acceptance conditions for fibre-cement flat sheets, siding shingles and planks (referred to as sheets later in this document) for one or more of the following uses:  internal wall and ceiling finishes,  external wall and ceiling finishes. Products covered by this document can be used for other purposes provided they comply with the relevant application standard, e.g. rigid underlays. NOTE prEN (WI 128087) “Roof covering products for discontinuous laying and products for wall cladding - Rigid underlays - Rigid underlays for discontinuously laid roof coverings – Product specification and test methods” is under preparation. This document covers sheets reinforced with fibres of different types as specified in 5.1.1. This document does not cover sheets for fire protection purposes.
This document does not include calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed sheets. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 197-1, Cement – Part 1: Composition, specifications and conformity criteria for common cements. EN 13501-1, Fire classification of construction products and building elements - Part 1: Classification using test data from reaction to fire test. EN ISO 12572, Hygrothermal performance of building materials and products - Determination of water vapour transmission properties (ISO 12572:2001). ISO 390, Products in fibre-reinforced cement - Sampling and inspection. ISO 2602: Statistical interpretation of test results - Estimation of the mean - Confidence interval. ISO 2859-1, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. ISO 3951, Sampling procedures and charts for inspection by variables for percent non-conforming. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply.

apparent density density based on the external dimensions of the sample to calculate the volume. This is an average density of material and pores 3.5 as-delivered same condition as the producer intends to supply the product after completing all aspects of the process including maturing and, when appropriate, painting 3.6 upper face face normally exposed 3.7 under face reverse of upper face 3.8 textured sheets sheets which have a relief pattern embossed or applied as a coating on their upper face before delivery 4 Symbols and abbreviations a Nominal length or width of the sheet
b 1.
Dimension of the specimen (length or width) measured parallel to the test machine supports, in millimetres
2.
One of the coefficients of the regression line (see Annex B) d Apparent density of the sheet in grams per cubic centimetre e Thickness of the sheet, in millimetres

Number of paired specimens MOR Modulus of rupture, in megapascals MORfi Modulus of rupture of the ith exposed specimen after the type test
MORfci
Modulus of rupture of the ith unexposed reference specimen MRi Individual ratio of the modulus of rupture of the ith pair of exposed and unexposed specimens R Average ratio of the modulus of rupture of exposed and unexposed specimens RL Lower estimate of the mean of the ratios at 95% confidence level of the modulus of rupture of exposed and unexposed specimens s Standard deviation of the values in the appropriate calculation µ
Water vapour resistance value V Volume of the specimen, in cubic centimetres w Width, in millimetres xi Individual value of the ith specimen tested dry xstd Minimum value to be used as the specification for the dry method of test. This value is calculated at the 97,5% lower confidence level from the value specified for the wet method of test in this document (see B.5) ystd Minimum value specified in the standard for wet testing (see B.5) xo Actual result obtained when dry testing (see B.4) x Mean of the values of xi for i = 1 to n yi Individual value of the ith specimen tested wet yo Value calculated from the value obtained from a specimen tested dry, which is the estimate at the 97,5% lower confidence level of the value expected from a specimen tested wet (see B.4) y
Mean of the values of yi for i = 1 to n.

5.1 General
5.1.1 Composition Sheets shall consist essentially of cement or a calcium silicate formed by a chemical reaction of a siliceous and a calcareous material, reinforced by fibres. The cement shall comply with EN 197-1 or with technical specifications relevant in the country of use. Two types of fibre-reinforced sheets are included in this document:  Type AT (Asbestos Technology) for sheets the formulation of which contains chrysotile asbestos,  Type NT (Non-Asbestos Technology) for sheets the formulation of which does not contain asbestos. The reinforcing fibres shall be one or more of the following forms:  discrete elements randomly dispersed;  continuous strands or tapes;  nets or webs. Process aids, fillers, aggregates and pigments may be added. 5.1.2 Appearance and finish The exposed face of the sheets can be with or without texture. The sheets can be coloured or left in their natural colour. The sheets can also receive adherent coloured or uncoloured coatings on their surface. Variations of the surface appearance which do not impair the fitness for purpose of the sheets are permitted. The sheets may be supplied with holes for fixing and/or cut to size. 5.2 Classification 5.2.1 General Sheets covered by this document are divided into:
 two types in accordance with their composition (see 5.1.1);  four categories in accordance with their weather resistance (see 5.2.2 – 5.2.5);  five classes in accordance with their bending strength (see 5.4.3);  two groups of sizes in accordance with their method of installation (see 5.2.6);  two levels in accordance with their dimensional tolerances (see 5.3.4). Type tests for each category are specified in Table 7 (6.2.1). 5.2.2 Category A Sheets which are intended for applications where they may be subjected to heat, high moisture and severe frost.

5.2.6 Groups of sizes 5.2.6.1 Small size sheets Sheets for which the method of installation includes horizontal overlap. Their dimensions are generally such that their area is < 0,4 m² and have a length/width relation ≤ 3. 5.2.6.2 Large size sheets Sheets which do not correspond to indicators for small size sheets. Large sheets may be declared as "small size sheets" provided tolerances for small size sheets apply and are specified in the manufacturer's literature. 5.3 Dimensions and tolerances 5.3.1 General There are two levels of tolerances for length, width, straightness and squareness of edges. Sheets shall comply with the requirements of the same level for the four sets of tolerances. 5.3.2 Nominal length and width The manufacturer shall specify the nominal length and width of the sheets. NOTE Sheets are normally available in nominal lengths up to 3 000 mm and nominal width up to 1 250 mm. Greater nominal lengths and widths can be supplied. 5.3.3 Thickness The manufacturer shall specify the nominal thickness of the sheets. For non textured sheets the nominal thickness refers to the average thickness. For textured sheets the nominal thickness refers to the maximum thickness. NOTE 1 The nominal thickness of textured sheets cannot be used for the calculation of mechanical performance. Sheets are normally available in thickness from 3 mm to 30 mm. NOTE 2 Thicker sheets can be supplied.

5.3.4.1 Tolerances on length and width Tolerances on length and width shall be in accordance with Table 1, for the appropriate level. Table 1 — Tolerances on nominal dimensions in accordance with value and level Nominal dimension aa Level I Level II a ≤ 600 mm ± 3 mm ± 4 mm 600 mm
< a ≤ 1 000 mm ± 3 mm ± 5 mm 1 000 mm
< a ≤ 1 600 mm ± 0,3% a ± 0,5% a 1 600 mm < a ± 5 mm ± 8 mm a a is the nominal width or length
These tolerances are not applicable to oversize sheets. The method of measurement is given in 7.2.3.1. 5.3.4.2 Tolerances on thickness For non-textured sheets, tolerances shall be in accordance with Table 2. Table 2 — Tolerances on thickness for non-textured sheets e
≤
6 mm ± 0,6 mm 6 mm < e
≤ 20 mm ± 10 % e e
>
20 mm ± 2 mm
For sheets without texture, the maximum difference between extreme values of the thickness measurements within one sheet shall not exceed 10 % of the maximum measured value. For textured sheets, tolerances shall be in accordance with Table 3. Table 3 — Tolerances on thickness for textured sheets e
≤ 6 mm - 0,6 mm + 0,9 mm 6 mm < e
≤ 20 mm - 10% e + 15% e e
> 20 mm - 2 mm + 3 mm
For textured sheets the maximum difference between extreme values of the eight thickness measurements within one sheet shall not exceed 15 % of the maximum measured value.
For certain applications, tighter tolerances are required and should be agreed on between the manufacturer and the purchaser.

The method of measurement is given in 7.2.3.3. These tolerances are not applicable for oversize sheets. 5.3.5.2 Squareness of edges The tolerances on squareness of sheets shall be in accordance with Table 5, for the appropriate level. Table 5 — Tolerances on squareness of edges Level I Level II 2 mm/m 4 mm/m
The method of measurement is given in 7.2.3.4. These tolerances are not applicable for oversize sheets. 5.4 Physical requirements and characteristics 5.4.1 General Mechanical and material properties are normally determined on sheets as delivered. The results shall be identified as applying to coated or uncoated material. NOTE See Annex B for statistic interpretation. 5.4.2 Apparent density
The manufacturer shall specify in his literature the minimum apparent density for each category of sheet. When tested in accordance with the method specified in 7.3.1 the density shall be not less than this value. For type AT sheets, the apparent density shall be greater than 1,0 g/cm3.
For certain applications, tighter tolerances are required and should be agreed on between the manufacturer and the purchaser.

Category C and D sheet strengths are specified in the ambient condition. The minimum modulus of rupture of the sheets in the weaker direction shall be not less than 70 % of the specified value in Table 6 for the average of the two directions. This requirement does not apply to textured sheets. Table 6 — Minimum modulus of rupture (MOR) min. MOR in the wet condition MPa min. MOR in the ambient condition MPa Classes 1 2 3 4 5 Category A & B 4 7 13 18 24 Classes 1 2 3 4 5 Category C & D 4 7 10 16 22 NOTE 1
Where manufacturers state minimum product MOR this should be at the 4% acceptable quality level (AQL). NOTE 2
For textured sheets the MOR cannot be used for calculating mechanical performance.
5.4.4 Water impermeability for Categories A, B and D When tested in accordance with 7.3.3, traces of moisture may appear on the under surface of the sheet, but in no instance shall there be any formation of drops of water. 5.4.5 Water vapour permeability for Category D For flat sheets used as rigid underlays, the water vapour resistance value µ
shall be determined according to 7.3.4 and shall be specified in the manufacturer's literature. The µ value obtained from the test shall not be higher than the value specified by the manufacturer. 5.5 Durability requirements 5.5.1 General Mechanical and material properties are normally determined for sheets as delivered. The results shall be identified as applying to coated or uncoated material. The performance of the coating in the following tests shall not be considered in the assessment of the product.

When tested in accordance with 7.4.1, after 100 freeze-thaw cycles for Category A and 25 cycles for Category B and D, the ratio RL as defined in 7.4.1.4 shall be not less than 0,75. 5.5.3 Heat-rain for Categories A and B When tested in accordance with 7.4.2, after 50 heat-rain cycles for Category A and 25 cycles for Category B, any visible cracks, delamination, warping and bowing or other defects in the sheets shall not be of such a degree as to affect their performance in use. (a) Water tightness is tested according to 5.4.4. (b) Warping and bowing are visually assessed. 5.5.4 Warm water for Categories A, B, C and D When tested in accordance with 7.3.5, after 56 days at 60 °C, the ratio RL as defined in 7.3.5.4 shall be not less than 0,75. 5.5.5 Soak-dry for Categories A, B , C and D When tested in accordance with 7.3.6, after 50 soak-dry cycles for Category A and 25 cycles for Categories B, C and D the ratio RL as defined in 7.3.6.4 shall be not less than 0,75.
5.6 Fire and safety 5.6.1 Reaction to fire When subject to regulatory requirements, the reaction to fire of the sheets shall be declared in accordance with 7.5.
5.6.2 Release of dangerous substances 5.6.2.1 Release of asbestos Two types of fibre content exist: Type "AT" and type "NT" as defined in 5.1.1. The relevant type of sheet shall be declared in the information accompanying the marking (see 5.7). For product type AT a declaration of the asbestos content shall be made by the manufacturer. 5.6.2.2 Release of other dangerous substances For products containing substance(s) defined in Council Directive 76/769/EEC, the content shall be declared by the manufacturer. This applies to substances contained in the original formulation or created during the manufacturing process. In addition see Annex ZA. 5.7 Product information The manufacturer shall include the following in his literature: a) designation of the sheet:
 type of product (see 5.1.1),

Table 7 — Type tests relevant to each category of sheet
Category
A B C D Impermeability Warm water Soak-dry Freeze-thaw Heat-rain Water vapour permeability External fire performance Reaction to fire Release of dangerous substances yes yes 50 cycles 100 cycles 50 cycles n.a. a yes or NPD b yes or NPD b yes or NPD b yes yes 25 cycles 25 cycles 25 cycles n.a. a yes or NPD b yes or NPD b yes or NPD b n.a. a yes 25 cycles n.a. a n.a. a n.a a yes or NPD b yes or NPD b yes or NPD b yes yes 25 cycles 25 cycles n.a. a yes yes or NPD b
yes or NPD b
yes or NPD b a
Not applicable b
No performance determined
Testing of mechanical characteristics is normally carried out with the upper face in compression. If required to establish a relationship between upper and under face testing, where significant differences are expected or if required for design purposes, the load shall be applied on the under face. Results obtained for under face testing are not relevant for classification. 6.2.2 Initial type testing Initial type testing shall be performed to demonstrate conformity to this document. Tests previously performed in accordance with the provisions of this document (same product, same characteristic(s), test method, sampling procedure, same attestation of conformity, etc.) may be taken into account. In addition initial type testing shall be performed for the approval of a new product, a fundamental change in formulation or method of manufacture the effects of which cannot be predicted on the basis of previous experience. The results of all type tests shall be recorded and held by the manufacturer for at least 5 years. 6.2.3 Further type testing Whenever a change occurs in the fibre-cement sheet design, the raw material or supplier of components, or the production process, which would change significantly one or more of the characteristics, the type test shall be performed for the appropriate characteristic(s).

5.6.2 Warm water 5.5.4 7.3.5 10 samples 5.5.4 and 7.3.5.4 Soak-dry 5.5.5 7.3.6 10 samples 5.5.5 and 7.3.6.4 Freeze-thaw 5.5.2 7.4.1 10 samples 5.5.2 and 7.4.1.4 Heat rain 5.5.3 7.4.2 7.4.2.4 5.5.3 and 7.4.2.5
6.3 Factory production control (FPC) 6.3.1 General The manufacturer shall establish, document and maintain a FPC system to ensure that the products placed on the market conform with the stated performance characteristics. The FPC system shall consist of procedures, regular inspections and tests and/or assessments and the use of the results to control raw and other incoming materials or components, equipment, the production process and the product. A manufacturer who has established a Quality management system according to EN ISO 9001, is considered to satisfy the above requirements. The results of inspections, tests or assessments requiring action shall be recorded, as shall the action(s) be taken. 6.3.2 Acceptance tests The specifications of acceptance tests apply to the product as delivered, but may be carried out at an earlier stage of maturity.

AQL 4% Level S3
6.3.3 Equipment All weighing, measuring and testing equipment shall be calibrated and regularly inspected according to documented procedures, frequencies and criteria. 6.3.4 Raw materials and components The specification of all incoming raw materials and components shall be documented, as shall the inspection scheme for ensuring conformity. 6.3.5 Product testing and evaluation The manufacturer shall establish procedures to ensure that the stated values of all of the characteristics are maintained.

7.2.3.2.2 Textured sheets a) Carry out the measurements with a dial gauge, taking each reading to an accuracy of 0,1 mm. Report the individual results. Calculate the arithmetic mean of the measurements and the difference between extreme values. Assess the results against the tolerances given in 5.3.4.2. The thickness obtained by this method shall not be used for calculation of MOR and density. a1) Small size sheets Measure the maximum thickness in the middle of all four sides of each sheet between 20 mm and 50 mm from the edge. a2) Large size sheets Measure the maximum thickness of each test sheet at the eight positions as shown in Figure 1b between 20 mm and 50 mm from the edge. b)
For calculation of MOR and density: b1) For embossed sheets and sheets with thin applied coating ≤ 0,5 mm, determine the thickness of specimens from volume measurement by water displacement using the formula wIVe××=0001 where: e is the specimen thickness in millimetres;
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