SIST EN 13171:2009
(Main)Thermal insulating products for buildings - Factory made wood fibre (WF) products - Specification
Thermal insulating products for buildings - Factory made wood fibre (WF) products - Specification
This European Standard specifies the requirements for factory made wood fibre products, with or without facings or coatings, which are used for the thermal insulation of buildings . The products are manufactured in the form of rolls, batts, felts, boards or slabs.
This European Standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling.
Products covered by this European Standard are also used in prefabricated thermal insulation systems and composite panels; the performance of systems incorporating these products is not covered.
This European Standard does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The classes and levels required for a given application are to be found in regulations or non conflicting standards.
Products with a declared thermal resistance lower than 0,50 m2K/W or a declared thermal conductivity greater than 0,070 W/(mK) at 10 °C are not covered by this European Standard.
This European Standard does not cover in situ insulation products and products intended to be used for the insulation of building equipment and industrial installations.
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Holzfasern (WF) - Spezifikation
Diese Europäische Norm legt die Anforderungen an werkmäßig hergestellte Erzeugnisse aus Holzfasern einschließlich etwaiger Kaschierungen und Beschichtungen fest, die zur Wärmedämmung von Gebäuden verwendet werden. ) Die Produkte werden in Form von Rollen, Formstücken, Matten oder Platten hergestellt.
Diese Europäische Norm beschreibt Stoffeigenschaften und enthält Prüfverfahren sowie Festlegungen für den Übereinstimmungsnachweis, die Kennzeichnung und die Etikettierung.
Dämmstoffe nach dieser Europäischen Norm werden auch in vorgefertigten Wärmedämmsystemen sowie Verbundelementen verwendet. Brauchbarkeitsnachweise für derartige Systeme mit Holzfaserdämmstoffen werden nicht durch diese Norm abgedeckt.
Diese Europäische Norm legt keine Anforderungsniveaus für eine vorgegebene Eigenschaft fest, die die Gebrauchstauglichkeit für einen bestimmten Anwendungsfall gewährleisten. Die jeweils erforderlichen Klassen und Stufen für eine vorgegebene Verwendung können aus Regelwerken oder anderen dieser Norm nicht widersprechenden Normen entnommen werden.
Diese Europäische Norm gilt nicht für Produkte mit einem Nennwert des Wärmedurchlasswiderstandes von weniger als 0,5 m2 K/W oder deren Nennwert der Wärmeleitfähigkeit größer als 0,070 W/(m K) bei 10 °C Mitteltemperatur ist.
Diese Europäische Norm gilt nicht für an der Baustelle (in situ) hergestellte Wärmedämmstoffe sowie für Produkte, die zur Wärmedämmung von haus oder betriebstechnischen Anlagen vorgesehen sind.
Produits isolants thermiques pour le bâtiment - Produits manufacturés en fibres de bois (WF) - Spécification
La présente Norme européenne spécifie les exigences auxquelles doivent satisfaire les produits manufacturés en fibre de bois, avec ou sans parements, utilisés pour l’isolation thermique des bâtiments ). Les produits sont fabriqués sous forme de rouleaux, bandes, feutres, panneaux ou plaques.
La présente norme décrit les caractéristiques de ces produits et comporte des modes opératoires d’essai, d’évaluation de conformité, de marquage et d’étiquetage.
Les produits couverts par la présente Norme européenne sont également utilisés dans les systèmes d’isolation thermique préfabriqués et les panneaux composites ; les performances des systèmes incorporant ces produits ne sont pas traitées.
La présente norme ne spécifie pas de niveau à atteindre par le produit pour une propriété donnée, pour démontrer son aptitude à l’usage dans une application particulière. Les niveaux/classes requis pour une application donnée figurent dans les réglementations ou dans les normes non contradictoires.
Les produits dont la résistance thermique déclarée à une température de 10 °C est inférieure à 0,50 m2K/W ou dont la conductivité thermique déclarée à une température de 10 °C est supérieure à 0,070 W/(mK) ne sont pas du domaine d’application de la présente norme.
Les produits mis en œuvre in situ et ceux destinés à être utilisés pour l’isolation des équipements du bâtiment et des installations industrielles ne sont pas du domaine d’application de la présente Norme européenne.
Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz lesnih vlaken (WF) - Specifikacija
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz lesnih vlaken (WF) - SpecifikacijaWärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Holzfasern (WF) - SpezifikationProduits isolants thermiques pour le bâtiment - Produits manufacturés en fibres de bois (WF) - SpécificationThermal insulating products for buildings - Factory made wood fibre (WF) products - Specification91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 13171:2008SIST EN 13171:2009en,fr,de01-februar-2009SIST EN 13171:2009SLOVENSKI
STANDARDSIST EN 13171:2002/AC:2006SIST EN 13171:2002/A1:2004SIST EN 13171:20021DGRPHãþD
SIST EN 13171:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13171November 2008ICS 91.100.60Supersedes EN 13171:2001
English VersionThermal insulating products for buildings - Factory made woodfibre (WF) products - SpecificationProduits isolants thermiques pour le bâtiment - Produitsmanufacturés en fibres de bois (WF) - SpécificationWärmedämmstoffe für Gebäude - Werkmäßig hergestellteProdukte aus Holzfasern (WF) - SpezifikationThis European Standard was approved by CEN on 18 October 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13171:2008: ESIST EN 13171:2009
EN 13171:2008 (E) 2 Contents Page Foreword .4 1 Scope .6 2 Normative references .6 3 Terms, definitions, symbols, units and abbreviated terms .8 4 Requirements . 11 5 Test methods . 18 6 Designation code . 21 7 Evaluation of conformity . 21 8 Marking and labelling . 22 Annex A (normative)
Determination of the declared values of thermal resistance and
thermal conductivity . 23 Annex B (normative)
Factory production control . 25 Annex C (informative)
Additional properties . 28 Annex D (informative)
Examples for the determination of the declared values of thermal resistance and thermal conductivity for a product or a product group . 29 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive. 32 Bibliography . 40
Tables Table 1 — Level and classes for thickness tolerances. 12 Table 2 — Classes of dimensional stability under specified temperature and humidity . 14 Table 3 — Levels for compressive stress or compressive strength . 14 Table 4 — Levels for tensile strength perpendicular to faces . 15 Table 5 — Levels for short term water absorption by partial immersion . 15 Table 6 — Levels for dynamic stiffness . 16 Table 7 — Classes for thickness tolerances . 16 Table 8 — Levels for compressibility . 17 Table 9 — Test methods, test specimens and conditions. 20 Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 % . 24 Table B.1 — Minimum product testing frequencies . 25 Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics . 27 Table C.1 — Test methods, test specimens, conditions and minimum testing frequencies . 28 Table D.1 — λ test results . 29 Table D.2 — R test results . 30 SIST EN 13171:2009
EN 13171:2008 (E) 3 Table ZA.1 — Relevant clauses for wood fibre products and intended use . 33 Table ZA.2 — Systems of attestation of conformity . 34 Table ZA.3 — Assignment of evaluation of conformity tasks for products under system 1 . 35 Table ZA.4 — Assignment of evaluation of conformity tasks for products under system 3 or system 3 combined with system 4 for reaction to fire . 36
SIST EN 13171:2009
EN 13171:2008 (E) 4 Foreword This document (EN 13171:2008) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products”, the secretariat of which is held by DIN. 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 May 2009, and conflicting national standards shall be withdrawn at the latest by May 2009. 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 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document. This document supersedes EN 13171:2001. This document is one of a series of standards for insulation products used in buildings, but this standard may be used in other areas where appropriate. In pursuance of Resolution BT 20/1993 revised, CEN/TC 88 have proposed defining the standards listed below as a package of documents. The package of standards comprises the following group of interrelated standards for the specifications of factory made thermal insulation products, all of which come within the scope of CEN/TC 88: EN 13162, Thermal insulation products for buildings — Factory made mineral wool (MW) products — Specification EN 13163, Thermal insulation products for buildings — Factory made products of expanded polystyrene (EPS) — Specification EN 13164, Thermal insulation products for buildings — Factory made products of extruded polystyrene foam (XPS) — Specification EN 13165, Thermal insulation products for buildings — Factory made rigid polyurethane foam (PUR) products — Specification EN 13166, Thermal insulation products for buildings — Factory made products of phenolic foam (PF) — Specification EN 13167, Thermal insulation products for buildings — Factory made cellular glass (CG) products — Specification EN 13168, Thermal insulation products for buildings — Factory made wood wool (WW) products — Specification EN 13169, Thermal insulation products for buildings — Factory made products of expanded perlite (EPB) — Specification EN 13170, Thermal insulation products for buildings — Factory made products of expanded cork (ICB) — Specification SIST EN 13171:2009
EN 13171:2008 (E) 5 EN 13171, Thermal insulation products for buildings — Factory made wood fibre (WF) products — Specification 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 13171:2009
EN 13171:2008 (E) 6
1 Scope This European Standard specifies the requirements for factory made wood fibre products, with or without facings or coatings, which are used for the thermal insulation of buildings1. The products are manufactured in the form of rolls, batts, felts, boards or slabs. This European Standard specifies product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling. Products covered by this European Standard are also used in prefabricated thermal insulation systems and composite panels; the performance of systems incorporating these products is not covered. This European Standard does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The classes and levels required for a given application are to be found in regulations or non-conflicting standards. Products with a declared thermal resistance lower than 0,50 m2⋅K/W or a declared thermal conductivity greater than 0,070 W/(m⋅K) at 10 °C are not covered by this European Standard. This European Standard does not cover in situ insulation products and products intended to be used for the insulation of building equipment and industrial installations. 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 822, Thermal insulating products for building applications — Determination of length and width EN 823, Thermal insulating products for building applications — Determination of thickness EN 824, Thermal insulating products for building applications — Determination of squareness EN 825, Thermal insulating products for building applications — Determination of flatness EN 826, Thermal insulating products for building applications — Determination of compression behaviour EN 1602, Thermal insulating products for building applications — Determination of apparent density EN 1603, Thermal insulating products for building applications — Determination of dimensional stability under constant normal laboratory conditions (23 °C/50 % relative humidity) EN 1604:1996, Thermal insulating products for building applications — Determination of dimensional stability under specified temperature and humidity conditions EN 1606, Thermal insulating products for building applications — Determination of compressive creep
1 Wood fibre products for applications other than thermal insulation are covered by EN 316, Wood fibreboards —Definition, classification and symbols.
SIST EN 13171:2009
EN 13171:2008 (E) 7 EN 1607, Thermal insulating products for building applications — Determination of tensile strength perpendicular to faces EN 1608, Thermal insulating products for building applications — Determination of tensile strength parallel to faces EN 1609, Thermal insulating products for building applications — Determination of short term water absorption by partial immersion EN 12086:1997, Thermal insulating products for building applications — Determination of water vapour transmission properties EN 12089, Thermal insulating products for building applications — Determination of bending behaviour
EN 12090, Thermal insulating products for building applications — Determination of shear behaviour
EN 12431, Thermal insulating products for building applications — Determination of thickness for floating floor insulation products EN 12667, Thermal performance of building materials and products — Determination of thermal resistance by means of guarded hot plate and heat flow meter methods — Products of high and medium thermal resistance EN 12939, Thermal performance of building materials and products — Determination of thermal resistance by means of guarded hot plate and heat flow meter methods — Thick products of high and medium thermal resistance EN 13172:2008, Thermal insulating products — Evaluation of conformity2 EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire test EN 29052-1, Acoustics — Determination of dynamic stiffness — Part 1: Materials used under floating floors in dwellings
EN 29053, Acoustics — Materials for acoustical applications - Determination of airflow resistance (ISO 9053:1991) EN ISO 354, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 9229:2007, Thermal insulation — Vocabulary (ISO 9229:2007) EN ISO 11654, Acoustics — Sound absorbers for use in buildings — Rating of sound absorption (ISO 11654:1997) EN ISO 11925-2, Reaction to fire tests — Ignitability of building products subjected to direct impingement of flame – Part 2: Single-flame source test (ISO 11925-2:2002) EN ISO 13823:2002, Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item ISO 12491, Statistical methods for quality control of building materials and components
2 under review
SIST EN 13171:2009
EN 13171:2008 (E) 8 3 Terms, definitions, symbols, units and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 Terms and definitions as given in EN ISO 9229:2007 3.1.1.1 wood fibre products insulation products manufactured from wood fibres with or without the addition of bonding agents and/or additives. Mechanically bonded products are also included within this definition 3.1.1.2 mat flexible fibrous insulation product supplied rolled or flat, which may be faced but not enclosed 3.1.1.3 batt portion of a mat in the form of a rectangular piece, generally between 1 m and 3 m in length, and usually supplied flat or folded 3.1.1.4 felt mechanically and/or binder bonded insulation product 3.1.1.5 roll insulation product supplied in the form of a spirally wound cylinder 3.1.1.6 lamella roll strips of wood fibre boards, bonded to a flexible facing, supplied in a bound, which leads to a continuous insulating layer, when the roll is unrolled 3.1.1.7 board slab rigid or semi-rigid (insulation) product of rectangular shape and cross section in which the thickness is uniform and substantially smaller than the other dimensions NOTE Boards are usually more rigid than slabs. They may also be supplied in tapered form. 3.1.2 Additional terms and definitions 3.1.2.1 level given value which is the upper or lower limit of a requirement
NOTE The level is given by the declared value of the characteristic concerned. 3.1.2.2 class combination of two levels of the same property between which the performance shall fall SIST EN 13171:2009
EN 13171:2008 (E) 9 3.2 Symbols, units and abbreviated terms 3.2.1 Symbols and units used in this standard: αp is the practical sound absorption coefficient – αw is the weighted sound absorption coefficient – b is the width mm c is the compressibility mm d is the thickness mm dB is the thickness under a load of 2 kPa after removal of an additional load of 48 kPa mm dL is the thickness under a load of 250 Pa mm dN is the nominal thickness of the product mm dS is the thickness of the test specimen mm ûεb is the relative change in width % ûεd is the relative change in thickness % ûεl is the relative change in length % ûεs is the relative change in flatness mm/m Fp is the compressive force at critical point kN k is a factor related to the number of test results available – l is the length mm λ90/90 is the 90 % fractile with a confidence level of 90 % for the thermal conductivity W/(m⋅K) λD is the declared thermal conductivity W/(m⋅K) λi is one test result of thermal conductivity W/(m⋅K) λmean is the mean thermal conductivity W/(m⋅K) µ is the water vapour diffusion resistance factor – n is the number of test results – R90/90 is the 90 % fractile with a confidence level of 90 % for the thermal resistance m2⋅K/W RD is the declared thermal resistance m2⋅K/W Ri is one test result of thermal resistance m2⋅K/W Rmean is the mean thermal resistance m2⋅K/W ρa is the apparent density kg/m3 Sb is the deviation from squareness on length and width mm/m Smax is the deviation from flatness mm sR is the estimate of the standard deviation of the thermal resistance m2⋅K/W sλ is the estimate of the standard deviation of the thermal conductivity W/(m⋅K) s′ is the dynamic stiffness MN/m3 SIST EN 13171:2009
EN 13171:2008 (E) 10 σc is the declared compressive stress kPa σ10 is the compressive stress at 10 % deformation kPa σm is the compressive strength kPa σmt is the tensile strength perpendicular to faces kPa σt is the tensile strength parallel to faces kPa Wp is the short-term water absorption kg/m2 X0 is the initial deformation after 60 s from the beginning of loading mm Xct is the compressive creep mm Xt is the deformation at time t (total thickness reduction) mm Z is the water vapour resistance m2⋅h⋅Pa/mg AFr i is the symbol of the declared level of airflow resistivity* APi is the symbol of the declared level of practical sound absorption coefficient* AWi is the symbol of the declared level of weighted sound absorption coefficient* CC(i1/i2/y)1c is the symbol of the declared level for compressive creep* CPi is the symbol of the declared level for compressibility* CS(10\Y)i is the symbol of the declared level for compressive stress or strength* DS(T+) is the symbol of the declared value for dimensional stability at specified temperature DS(TH) is the symbol of the declared value for dimensional stability under specified temperatureand humidity MUi is the symbol of the declared value for water vapour diffusion resistance factor* SDi is the symbol of the declared level of dynamic stiffness* Ti is the symbol of the declared class for thickness tolerances* TRi is the symbol of the declared level for tensile strength perpendicular to faces* WS is the symbol of the declared level for short term water absorption Zi is the symbol of the declared value for water vapour resistance* * "i” is the relevant class or level, "1c” is the compressive stress, and "y” is the number of years 3.2.2 Abbreviated terms used in this standard: WF Wood Fibre ITT Initial Type Test RTF Reaction To Fire FPC Factory Production Control SIST EN 13171:2009
EN 13171:2008 (E) 11 4 Requirements 4.1 General Product properties shall be assessed in accordance with Clause 5. To comply with this standard, products shall meet the requirements of 4.2 and the requirements of 4.3 as appropriate. NOTE Information on additional properties is given in Annex C.
One test result for a product property is the average of the measured values on the number of test specimens given in Table 9.
4.2 For all applications 4.2.1 Thermal resistance and thermal conductivity Thermal resistance and thermal conductivity shall be based upon measurements carried out in accordance with EN 12667 or EN 12939 for thick products. The thermal resistance and thermal conductivity shall be determined in accordance with Annex A and declared by the manufacturer according to the following: the reference mean temperature shall be 10 °C; the measured values shall be expressed with three significant figures; for products of uniform thickness, the thermal resistance, RD, shall always be declared. The thermal conductivity, λD, shall be declared where possible. Where appropriate, for products of non-uniform thickness (e.g. for sloped and tapered products) only the thermal conductivity, λD, shall be declared. the declared thermal resistance, RD, and the declared thermal conductivity, λD, shall be given as limit values representing at least 90 % of the production, determined with a confidence level of 90 %; the value of thermal conductivity, λ90/90, shall be rounded upwards to the nearest 0,001 W/(m⋅K) and declared as λD in levels with steps of 0,001 W/(m⋅K); the declared thermal resistance, RD, shall be calculated from the nominal thickness, dN, and the corresponding thermal conductivity, λ90/90; the value of thermal resistance, R90/90, when calculated from the nominal thickness, dN, and the corresponding declared thermal conductivity, λ90/90, shall be rounded upwards to the nearest 0,05 m2⋅K/W, and declared in levels with steps of 0,05 m2⋅K/W; the value of R90/90, for those products for which only the thermal resistance is measured directly, shall be rounded downwards to the nearest 0,05 m2⋅K/W and declared as RD in levels with steps of 0,05 m2⋅K/W. Examples of the determination of the declared values of thermal resistance, RD, and the thermal conductivity, λD, are given in Annex D. 4.2.2 Length and width Length, l, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from the nominal values by more than the following: SIST EN 13171:2009
EN 13171:2008 (E) 12 ± 2 % for length (for rolls, matts and felts no upper limit), ± 1,5 % for width. 4.2.3 Thickness Thickness, d, for products not intended for floating floors shall be determined in accordance with EN 823 under a load of (250 ± 5) Pa. No test result shall deviate from the nominal thickness, dN, by more than the tolerances given in Table 1 for the labelled level or class. Table 1 — Level and classes for thickness tolerances Level or class Tolerances T1 –5 mm +15 % or +15 mma T2 –4 mm +10 % or +10 mma T3 –3 mm +5 % or +5 mma T4 –1 mm +3 mm a Whichever gives the smallest numerical tolerance
This test shall not be performed when the tests described in 4.3.10 are used. 4.2.4 Squareness Squareness shall be determined in accordance with EN 824. The deviation from squareness on length and width, Sb, of boards and slabs shall not exceed 5 mm/m. 4.2.5 Flatness Flatness shall be determined in accordance with EN 825. The deviation from flatness, of boards and slabs, Smax, shall not exceed 6 mm. 4.2.6 Dimensional stability 4.2.6.1 Dimensional stability under constant normal laboratory conditions Dimensional stability under constant normal laboratory conditions (23 °C/50 % relative humidity) shall be determined in accordance with EN 1603.The relative changes in length, ûεl and width, ûεb, shall not exceed 0,5 % and in thickness, ûεd, 1 %. The relative change in flatness, ûεs, shall not exceed 1 mm/m. 4.2.6.2 Dimensional stability under specified temperature and humidity conditions Dimensional stability under specified temperature and humidity conditions shall be determined in accordance with EN 1604, the test shall be carried out after storage for 48 h at (23 ± 2) °C and (90 ± 5) % relative humidity. The test specimens shall then be reconditioned at (23 ± 2) °C and (50 ± 5) % relative humidity for 24 h. The relative changes in length, ûεl, width, ûεb, and in thickness, ûεd, shall not exceed 1 %. This test shall not be performed when the more severe test, described in 4.3.2.2, is used. SIST EN 13171:2009
EN 13171:2008 (E) 13 4.2.7 Tensile strength parallel to faces Tensile strength parallel to faces, σt, shall be determined in accordance with EN 1608. For handling purposes, products shall have a tensile strength parallel to faces of 10 kPa. The test is not necessary for faced products or if one of the tests is carried out in accordance 4.3.3 or 4.3.4. 4.2.8 Reaction to fire Reaction to fire classification (Euroclasses) shall be determined in accordance with EN 13501-1. 4.2.9 Durability characteristics 4.2.9.1 General The appropriate durability characteristics have been considered and are covered in 4.2.9.2, 4.2.9.3 and 4.2.9.4. 4.2.9.2 Durability of reaction to fire against ageing/ degradation The reaction to fire performance of wood fibre products does not change with time. 4.2.9.3 Durability of thermal resistance and thermal conductivity against ageing/ degradation The thermal conductivity of wood fibre products does not change with time. This is covered by 4.2.1 Thermal conductivity, 4.2.2 Length and width and 4.2.6 Dimensional stability or 4.3.2 Dimensional stability. 4.2.9.4 Durability of compressive strength against ageing/degradation The durability of compressive strength is covered by 4.3.6 Compressive creep. 4.3 For specific applications 4.3.1 General If there is no requirement for a property, described in 4.3, for a product in use, then the property does not need to be determined and declared by the manufacturer. 4.3.2 Dimensional stability under specified conditions 4.3.2.1 Dimensional stability at specified temperature Dimensional stability at specified temperature shall be determined in accordance with EN 1604:1996, 7.3. The test shall be carried out after storage for 48 h at (60 ± 2) °C. The test specimens shall then be reconditioned at (23 ± 2) °C and (50 ± 5) % relative humidity for 24 h. The relative changes in length, ûεl, width, ûεb, shall not exceed 0,5 %, the relative changes in thickness, ûεd, shall not exceed 1 %. 4.3.2.2 Dimensional stability under specified temperature and humidity conditions Dimensional stability under specified temperature and humidity conditions shall be determined in accordance with EN 1604 and the conditions given in Table 2. The test specimens shall then be reconditioned at (23 ± 2) °C and (50 ± 5) % for 24 h. The relative changes in length, ûεl, width, ûεb and thickness, ûεd, shall not exceed the values given in Table 2 for the declared class. SIST EN 13171:2009
EN 13171:2008 (E) 14
Table 2 — Classes of dimensional stability under specified temperature and humidity Class Conditions Requirement DS (70, –) 1 48 h, 70 °C ≤ 1 % DS (70, –) 2 48 h, 70 °C ≤ 2 % DS (70, –) 3 48 h, 70 °C ≤ 3 % DS (70, 90) 1 48 h, 70 °C, 90 % ≤ 1 % DS (70, 90) 2 48 h, 70 °C, 90 % ≤ 2 % DS (70, 90) 3 48 h, 70 °C, 90 % ≤ 3 %
4.3.3 Compressive stress or compressive strength Compressive stress at 10 % deformation, σ10, or the compressive strength, σm, shall be determined in accordance with EN 826. No test result for either the compressive stress at 10 % deformation, σ10, or the compressive strength, σm, whichever is the smaller, shall be less than the value, given in Table 3, for the declared level. Table 3 — Levels for compressive stress or compressive strength Level Requirement kPa CS(10\Y)5 ≥ 5,0 CS(10\Y)10 ≥ 10 CS(10\Y)20 ≥ 20 CS(10\Y)40 ≥ 40 CS(10\Y)70 ≥ 70 CS(10\Y)100 ≥ 100
4.3.4 Tensile strength perpendicular to faces Tensile strength perpendicular to the faces, σmt, shall be determined in accordance with EN 1607. No test result shall be less than the value given in Table 4 for the declared level.SIST EN 13171:2009
EN 13171:2008 (E) 15 Table 4 — Levels for tensile strength perpendicular to faces Level Requirement kPa TR1 ≥ 1,0 TR2,5 ≥ 2,5 TR5 ≥ 5,0 TR7,5 ≥ 7,5 TR10 ≥ 10 TR15 ≥ 15 TR20 ≥ 20 TR30 ≥ 30 TR40 ≥ 40 TR50 ≥ 50 TR60 ≥ 60 TR70 ≥ 70
4.3.5 Point load The effects of foot traffic shall be assessed by means of determination of compressive stress at 10 % deformation or compressive strength in accordance with EN 826, see 4.3.3. 4.3.6 Compressive creep Compressive creep, Xct, and total thickness reduction, Xt, shall be determined after at least one hundred and twenty two days of testing at a
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