EN 13168:2001
(Main)Thermal insulation products for buildings - Factory made wood wool (WW) products - Specification
Thermal insulation products for buildings - Factory made wood wool (WW) products - Specification
This European standard specifies the requirements for factory made products of wood wool, with or without facings, which are used for the thermal insulation of buildings. The standard also specifies the requirements for the factory made composite products, made from wood wool in combination with other insulating materials. The products are manufactured in the form of boards. The standard describes product characteristics and includes procedures for testing, marking and labelling.
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Holzwolle (WW) - Spezifikation
Diese Europäische Norm legt die Anforderungen für werkmäßig hergestellte Produkte aus Holzwolle mit oder ohne Kaschierungen fest, die für die Wärmedämmung von Gebäuden benutzt werden. Diese Norm beschreibt auch die Anforderungen für werkseitig erzeugte Mehrschicht-Produkte, gefertigt aus Holzwolle in Verbindung mit einem anderen Dämmmaterial. Die Produkte werden in Form von Platten produziert. Diese Norm beschreibt die Stoffeigenschaften und enthalt die Prüfverfahren und Festlegungen für die Konformitätsbewertung, die Kennzeichnung und die Etikettierung. In dieser Norm beschriebene Produkte werden auch in vorgefertigten Wärmedämmsystemen und Mehrschicht-Verbundplatten angewendet; die Eigenschaften von Systemen, in die diese Produkte integriert sind, werden nicht behandelt. Diese Norm legt keine Anforderungsniveaus für eine vorgegebene Eigenschaft fest, die ein Produkt erreichen muss, um für einen bestimmten Anwendungsfall tauglich zu sein. Für bestimmte Anwendungen benötigte Anforderungen können Regelwerken oder übereinstimmenden Normen entnommen werden. Diese Norm gilt nicht für Produkte, deren Nennwert des Wärmedurchlasswiderstandes niedreiger ist als 0,15 m² . K/W oder deren Nennwert der Wärmeleitfähigkeit größer ist als 0,1W/(m.K) bei 10°C Mitteltemperatur. Diese Norm gilt nicht für in situ-Dämmstoffe und für Produkte, die zur Dämmung von haustechnischen und betriebstechnischen Anlagen bestimmt sind (ode Produkte, die zur Schalldämmung bestimmt sind). Diese Norm gilt nicht für die folgenden Schallschutzaspekte: direkte Luftschalldämmung und Trittschallübertragung.
Produits isolants thermiques pour le bâtiment - Produits manufacturés en laine de bois (WW) - Spécification
La présente Norme européenne spécifie les exigences auxquelles doivent satisfaire les produits manufacturés en laine de bois, avec ou sans parements, utilisés pour l'isolation thermique des bâtiments.
La présente norme spécifie également les exigences auxquelles doivent satisfaire les produits composites manufacturés fabriqués à base de laine de bois en combinaison avec un autre matériau isolant. Les produits sont fabriqués sous forme de panneaux.
La présente norme décrit les caractéristiques du produit et inclut les procédures d'essai, d'évaluation de la conformité, de marquage et d'étiquetage.
Les produits du domaine d'application de la présente norme sont également utilisés dans des systèmes d'isolation thermique et dans des panneaux composites préfabriqués; la performance des systèmes dans lesquels entrent ces produits n'est pas définie.
La présente norme ne spécifie pas, pour une propriété donnée, le niveau exigé que doit atteindre un produit pour démontrer son aptitude à l'emploi dans une application particulière. Les niveaux requis pour une application donnée figurent dans les réglementations ou normes non conflictuelles.
Les produits dont la résistance thermique déclarée à une température de 10 °C est inférieure à 0,15 m2×K/W ou dont la conductivité thermique déclarée à une température de 10 °C est supérieure à 0,10 W/(m×K) ne sont pas du domaine d'application de la présente norme.
Les produits mis en ¿uvre 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
La présente norme n'inclut pas les aspects acoustiques suivants : isolement aux bruits aériens directs et transmission des bruits de choc.
Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz lesne volne (WW) - Specifikacija
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Thermal insulation products for buildings - Factory made wood wool (WW) products - SpecificationToplotnoizolacijski proizvodi za stavbe - Proizvodi iz lesne volne (WW) - SpecifikacijaProduits isolants thermiques pour le bâtiment - Produits manufacturés en laine de bois (WW) - SpécificationWärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Holzwolle (WW) - Spezifikation91.100.60Thermal and sound insulating materialsICS:SIST EN 13168:2002enTa slovenski standard je istoveten z:EN 13168:200101-marec-2002SIST EN 13168:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13168May 2001ICS 91.100.60English versionThermal insulation products for buildings - Factory made woodwool (WW) products - SpecificationProduits isolants thermiques pour le bâtiment - Produitsmanufacturés en laine de bois (WW) - SpécificationWärmedämmstoffe für Gebäude - Werkmäßig hergestellteProdukte aus Holzwolle (WW) - SpezifikationThis European Standard was approved by CEN on 16 April 2001.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13168:2001 E
Page 2EN 13168:2001ContentsPageForeword.31Scope.42Normative references.43Terms, definitions, symbols, units and abbreviated terms.54Requirements.75Test methods.126Designation code.147Evaluation of conformity.148Marking and labelling.15Annex A
(normative) Determination of the declared values of thermal conductivityand thermal resistance.16Annex B
(normative)
Factory production control.18Annex C
(normative)
Specific test methods.21Annex D
(normativ)
Specific items concerning this standard.23Annex ZA
(informative) Clauses of this European Standard addressing theprovisions of the EU Construction Products Directive.25TablesTable 1 - Classes for length and width tolerances.8Table 2 - Classes for thickness tolerances.8Table 3 - Levels for the deviation from sqareness.9Table 4 - Levels for deviation from flatness.9Table 5 - Levels for compressive stress or compressive strength.9Table 6 - Levels for chloride content.10Table 7 - Levels for tensile strength perpendicular to faces.10Table 8 - Test methods, test specimens and conditions.13Table A.1 - Values for k for one sided 90 % tolerance interval with a confidence level of90 %.17Table B.1 - Minimum product testing frequencies.18Table B.2 - Minimum product testing frequencies for the reaction to fire characteristics.19Table D.1 - Levels for bending strength.23Table ZA.1 - Relevant clauses.26Table ZA.2.1 – Systems of attestation of conformity of factory made products for anyintended use.27Table ZA.2.2 – Systems of attestation of conformity of factory made products for usessubject to regulations on reaction to fire.27Table ZA.3 – Example CE marking information.29
Page 3EN 13168:2001ForewordThis European Standard has been prepared by the Technical Committee CEN/TC 88, "Thermal insulatingmaterials 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 orby endorsement, at the latest by November 2001, and conflicting national standards shall be withdrawn at thelatest by March 2003.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard.This European Standard contains five annexes:Annex A
(normative)
Determination of the declared values of thermal conductivity and thermal resistance;Annex B
(normative)
Factory production control;Annex C
(normative)
Specific test methods;Annex D
(normative)
Specfic items concerning this standard;Annex ZA
(informative)
Clauses of this European Standard addressing the provisions of theEU Construction Products Directive.This European Standard is one of a series of standards for insulation products used in buildings, but this standardmay 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 asa package of European Standards, setting (21 months after availability) as the date of withdrawal (dow) of nationalstandards which conflict with the European Standards of this package.The package of standards comprises the following group of interrelated standards for the specifications of factorymade 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.EN 13171, Thermal insulation products for buildings – Factory made wood fibre (WF) products –Specification.
Page 4EN 13168:2001According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.1ScopeThis European Standard specifies the requirements for factory made products of wood wool, with or withoutfacings, which are used for the thermal insulation of buildings.The standard also specifies the requirements for the factory made composite products, made from wood wool incombination with other insulation materials. The products are manufactured in the form of boards or slabs.This standard describes product characteristics and includes procedures for testing, evaluation of conformity,marking and labelling.Products covered by this standard are also used in prefabricated thermal insulation systems and compositepanels; the performance of systems incorporating these products is not covered.This standard does not specify the required level of a given property to be achieved by a product to demonstratefitness for purpose in a particular application. The levels/classes required for a given application are to be found inregulations or non-conflicting standards.Products with a declared thermal resistance lower than 0,15 m².K/W or a declared thermal conductivity greaterthan 0,1 W/(mK) at 10 °C are not covered by the standard.This standard does not cover in situ insulation products and products intended to be used for the insulation ofbuilding equipment and industrial installations.This standard does not cover the following acoustical aspects: direct airborne sound insulation and impact noisetransmission.2Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN ISO 354:1993/A1, Acoustics – Measurement of sound absorption in a reverberation room – Amendment 1:Test specimen mountings for sound absorption tests (ISO 354:1985/AMD 1:1997).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.prEN ISO 1182, Reaction to fire tests for building products – Non-combustibility test (ISO/DIS 1182:1998).EN 1602, Thermal insulating products for building applications – Determination of apparent density.EN 1604, Thermal insulation products for building applications – Determination of dimensional stability underspecified temperature and humidity conditions.
Page 5EN 13168:2001EN 1605, Thermal insulating products for building applications – Determination of dimensional stability underspecified load and temperature conditions.EN 1606, Thermal insulating products for building applications – Determination of compressive creep.EN 1607, Thermal insulating products for building applications – Determination of tensile strength perpendicular tofaces.EN 1609,Thermal insulating products for building applications – Determination of short term water absorption bypartial immersion.prEN ISO 1716, Reaction to fire tests for building products – Determination of calorific potential value (ISO/DIS1716:1998).prEN ISO 9229, Thermal insulation – Definitions of terms (ISO/DIS 9229:1997).EN ISO 11654, Acoustics – Sound absorbers for use in buildings – Rating of sound absorption (ISO 11654:1997).prEN ISO 11925-2, Reaction to fire tests for building products – Part 2: Ignitability when subjected to directimpingement of flame (ISO/DIS 11925-2:1998).EN 12086:1997, Thermal insulating products for building applications – Determination
of
water vapour trans-mission properties.EN 12089, Thermal insulating products for building applications – Determination of bending behaviour.EN 12430, Thermal insulating products for building application – Determination of the behaviour under point load.prEN 12667, Thermal performance for building materials and products – Determination of thermal resistance bymeans of guarded hot plate and heat flow meter methods – Products of high and medium thermal resistance.EN 12939, Thermal performance for building materials and products – Determination of thermal resistance by meansof guarded hot plate and heat flow meter methods – Thick products of high and medium thermal resistance.EN 13172:2001, Thermal insulating products – Evaluation of conformity.prEN 13501-1:2000, Fire classification of construction products and building elements - Part 1: Classificationusing test data from reaction to fire test.prEN 13820, Thermal insulating products for building applications – Determination of organic content.prEN 13823, Reaction to fire tests for building products – Building products excluding floorings exposed to thethermal attack by a single burning item.ISO 12491, Statistical methods for quality control of building materials and components.3Terms, definitions, symbols, units and abbreviated terms3.1Terms and definitionsFor the purposes of this standard, the following terms and definitions apply.3.1.1
Terms and definitions as given in prEN ISO 92293.1.1.1
wood wool long shavings of wood
3.1.1.2board; slabrigid or semi-rigid (insulation) product of rectangular shape and cross section in which the thickness is uniform andsubstantially smaller than the other dimensionsNOTE
Boards are usually thinner than slabs. They may also be supplied in tapered form.
Page 6EN 13168:20013.1.2
Additional terms and definitions3.1.2.1levelthe given value which is the upper or lower limit of a requirement. The level is given by thedeclared value of the characteristic concerned3.1.2.2classa combination of two levels of the same property between which the performance shall fall3.1.2.3inorganic cementing agentbinder used for producing wood wool products are portland cement, magnesite and a combination of cement andlime3.1.2.4wood wool board, slabrigid insulation product manufactured from loose wood wool, bonded with a mineral binder and compressed to itsfinal thickness3.1.2.5composite wood wool slabcomposite insulation product in which wood wool is bonded with a mineral binder, on one or both face(s) to otherinsulating materials, e.g. mineral wool, foamed rigid cellular plastics. The final thickness of the „two layer“ or „threelayer“ products, produced in this way, is determined during manufacture. The wood wool layer(s) of composite woodwool slabs shall cover the bonded insulation layer completely3.2
Symbols, units and abbreviated termsSymbols and units used in this standard:pis the practical sound absorption coefficient–wis the weighted sound absorption coefficient–bis the widthmmdis the thicknessmmdNis the nominal thickness of the productmmbis the relative change in width%dis the relative change in thickness%lis the relative change in length%Fpis the point load at a given deformationNkis a factor related to the number of test results–lis the lengthmm90/90is the 90 % fractile with a confidence level of 90 % for the thermal conductivityW/(mK)Dis the declared thermal conductivityW/(mK)iis one test result of thermal conductivityW/(mK)meanis the mean thermal conductivityW/(mK)is the water vapour diffusion resistance factor–nis the number of test results–R90/90is the 90 % fractile with a confidence level of 90 % for the thermal resistancem2K/WRDis the declared thermal resistancem2K/WRiis one test result of thermal resistancem2K/WRmeanis the mean thermal resistancem2K/Wais the apparent densitykg/m³Sbis the deviation from squareness on length and widthmm/mSmaxis the deviation from flatnessmmsRis the estimate of the standard deviation of the thermal resistancem2K/Wsis the estimate of the standard deviation of the thermal conductivityW/(mK)10is the compressive stress at 10% deformationkPabis the bending strengthkPacis the declared compressive stresskPamis the compressive strengthkPamtis the tensile strength perpendicular to faceskPaWpis the short term water absorptionkg/m²Xctis the compressive creepmm
Page 7EN 13168:2001Xtis the deformation at time t (total thickness reduction)mmZis the water vapour resistancem2hPa/mgAPis the symbol of the declared level of practical sound absorption coefficientAWis the symbol of the declared level of weighted sound absorption coefficientBS(+)is the symbol of the declared level for bending strength for a specified spanCC(i mm ,y) c
is the symbol of the declared level for compressive creepClis the symbol of the declared level for cloride contentCS(10\Y)
is the symbol of the declared level for compressive stress or strengthDS(L)is the symbol of the declared value for dimensional stability under specified load andtemperature conditionsDS(TH)is the symbol of the declared dimensional stability at specified temperature andrelative humidity conditionsLis the symbol of the declared class for length tolerancesMUis the symbol of the declared value for water vapour diffusion resistance factorPis the symbol of the declared value for flatness tolerancesPL(2)is the symbol of the declared level of point load for 2 mm deformationSis the symbol of the declared class for squareness tolerancesTis the symbol of the declared class for thickness tolerancesTRis the symbol of the declared level for tensile strength perpendicular to facesWis the symbol of the declared class for width tolerancesWSis the symbol of the declared level for short term water absorptionZis the symbol of the declared value for water vapour resistanceAbbreviated terms used in this standard:WWis Wood Wool board,
slabWW-Cis Composite Wood Wool board, slabWW-C/3 EPSis 3-layered Composite Wood Wool board, slab in combination with EPSITTis Initial Type Test4Requirements4.1GeneralProduct properties shall be assessed in accordance with clause 5. To comply with this standard, products shall meetthe requirements of 4.2, and the requirements of 4.3 as appropriate.One test result for a product property is the average of the measured values on the number of test specimens givenin table 8.All thermal insulating products used for the manufacture of WW-C-slabs shall comply with the relevant EuropeanProduct Standards.4.2For all applications4.2.1Thermal resistance and thermal conductivityThermal resistance and thermal conductivity shall be based upon measurements carried out in accordance withprEN 12667 or EN 12939 for thick products.The thermal resistance and thermal conductivity shall be determined in accordance with annex A and declared by themanufacturer according to the following:– the reference mean temperature shall be 10 °C;– the measured values shall be expressed with three significant figures;– the thermal resistance, RD, shall always be declared. The thermal conductivity, D, shall be declared wherepossible;
Page 8EN 13168:2001– the declared thermal resistance, RD, and thermal conductivity, D, shall be given as limit values representingat least 90 % of the production, determined with a confidence level of 90 %;_the value of thermal conductivity 90/90, shall be rounded upwards to the nearest 0,001 W/(mK) anddeclared as D in levels with steps of 0,001 W/(mK);– the declared thermal resistance, RD, shall be calculated from the nominal thickness dN, and the corres-ponding thermal conductivity 90/90.– the value of the thermal resistance, R90/90, when calculated from the nominal thickness, dN, and thecorresponding declared thermal conductivity,
90/90, shall be rounded downwards to the nearest0,05 m2K/W, and declared as RD in levels with steps of 0,05 m2K/W;– the value of R90/90, for those products for which only the thermal resistance is measured directly, shall berounded downwards to the nearest 0,05 m2K/W and declared as RD in levels with steps of 0,05 m2K/W.4.2.2Length and widthLength, l, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from thenominal length and width by more than the tolerances given in Table 1 for the declared class.Table 1 - Classes for length and width tolerancesClassTolerancesmmL1+ 5, - 10L2+ 3, - 5L3± 1 a ; ± 2 bW1± 3W2± 1a For nominal length
1250 mm.b For nominal length > 1250 mm.4.2.3ThicknessThickness, d, shall be determined in accordance with EN 823. No test result shall deviate from the nominalthickness, dN , by more than the tolerances given in Table 2 for the declared class.Table 2 - Classes for thickness tolerancesClassTolerancesmmNominal thicknessmmT1+ 3, - 2T2± 1 100T3+ 4, - 3T4± 2> 1004.2.4SquarenessSquareness, Sb, shall be determined in accordance with EN 824. The deviation from sqareness shall not exeedthe requirements given in Table 3 for the declared level.
Page 9EN 13168:2001Table 3 - Levels for the deviation from sqarenessLevelRequirementmm/mS1 6S2 4S3 24.2.5FlatnessThe property is only relevant for faced products. Flatness, Smax, shall be determined in accordance with EN825. The deviation from flatness shall not exeed the requirements given in Table 4 for the declared level.Table 4 - Levels for deviation from flatnessLevelRequirementmmP1 6P2 34.2.6Compressive stress or compressive strengthCompression stress at 10 % deformation, 10 , or the compressive strength, m, shall be determined inaccordance with EN 826. No test result for either the compressive stress or the compressive strength, whichever is the smaller, shall be less than the value, given in Table 5 for the declared level.Table 5 - Levels for compressive stress or compressive strengthLevelRequirementkPaCS(10/Y)20 20CS(10/Y)30 30CS(10/Y)50 50CS(10/Y)75 75CS(10/Y)100 100CS(10/Y)150 150CS(10/Y)200 200CS(10/Y)300 300CS(10/Y)500 500CS(10/Y)750 750CS(10/Y)1000 1000For handling purpurses, all products shall have as a minimum level CS(10/Y)204.2.7 Apparent density and mass per unit areaThe apparant density of
wood wool slabs, a , shall be determined in accordance with EN 1602. No test resultshall differ from the declared value by more than
10 %.The mass per unit area of composite wood wool slabs shall be determined from measurements of mass andshall be determined in accordance with EN 1602. No test result shall differ from the declared value by morethan
10 %.
Page 10EN 13168:20014.2.8 Compatibility with other materials (cloride content)The compatibility of wood wool slabs and the wood wool layers of composite wood wool slabs with otherbuilding materials is assessed through measurements of chloride content, determined in accordance with C.1.No test result shall exeed the values given in Table 6 for the declared level.Table 6 - Levels for chloride contentLevelRequirement%Cl1 0,35Cl2 0,15Cl3 0,064.2.9 Dimensional stability under specified temperature and humidity conditionsDimensional stability under specified temperature and humidity conditions of wood wool slabs shall bedetermined in accordance with EN 1604. The test shall be carried out after storage for 48 h at (70
2) °C and(90
5) % relative humidity. The relative change in thickness, d, shall not exceed 3,0 %. The relative changesin length, l, and width, b, shall not exceed 0,5 %.4.2.10Tensile strength perpendicular to facesTensile strength perpendicular to faces, mt ,shall be determined in accordance with EN 1607. No test resultshall be lower than the value given in Table 7 for the declared level.Table 7 - Levels for tensile strengthperpendicular to facesLevelRequirementkPaTR5 5,0TR7,5 7,5TR10 10TR15 15TR20 20TR40 40TR70 70TR100 100For handling purposes, all WW-C products shall have as a minimum level TR5. The tensile strengthperpendicular to faces of wood wool slabs shall not be tested.4.2.11 Reaction to fireReaction to fire classification (Euroclasses) shall be determined in accordance with prEN 13501-1:2000.4.3For specific applications4.3.1 GeneralIf there is no requirement for a property described in 4.3 for a product in use, then the property does not need tobe determined and declared by the manufacturer.
Page 11EN 13168:20014.3.2 Dimensional stability under specific load and temperature conditionsDimensional stability under specific load and temperature conditions shall be determined in accordance withEN 1605. The test shall be carried out for (48
1) h at (23
5) °C under loads of 20 kPa, 40 kPa and 80 kPa.The relative change in thickness, d , shall not exceed 2 %.4.3.3Point loadPoint load at 2 mm deformation shall be determined in accordance with EN 12430 and declared in levels withsteps of 50 N. No test result shall be less than the declared level.4.3.4 Bending strengthThe bending strength, b, shall be determined in accordance with EN 12089. The calculation of bending strengthshall take account the requirements of D.1. No test result shall be less than the declared level.4.3.5 Water vapour transmissionWater vapour transmission properties of wood wool products including facings and coatings shall be determinedin accordance with EN 12086 and declared as the water vapour diffusion resistance factor, , for homogeneousproducts and as the water vapour resistance, Z, for faced or non-homogeneous products. No test result of shall be greater than the declared value and no test result of Z shall be less than the declared value.In the absence of measurements, the water vapour difusion resistance factor,
, of wood wool products, eitherunfaced or faced with a fabric with an open structure may be assumed to be equal to 5.4.3.6 Short term water absorptionShort-term water absorption by partial immersion, Wp, shall be determined in accordance with EN 1609. No testresult shall exeed the declared level.4.3.7 Compressive creepCompressive creep, Xct, and total thickness reduction, Xt, shall be determined after at least one hundred andtwenty two days of testing at a declared compressive stress, c, given in steps of at least 1 kPa, and the resultsshall be extrapolated thirty times, corresponding to ten years, to obtain the declared levels in accordance withEN 1606. Compressive creep shall be declared in levels, i2, and the total thickness reduction shall be declared inlevels, i1, with steps of 0,1 mm at the declared stress. No test result shall exceed the declared levels at thedeclared stress.NOTE
Referring to the designation code CC(i1/i2/y)c
, according to clause 6, a declared level CC(2,5/2/10)50, as forexample, indicates a value not exceeding 2 mm for compressive creep and 2,5 mm for total thickness reduction afterextrapolation at 10 years (i.e. 30 times one hundred twenty two days of testing) under a declared stress of 50 kPa.4.3.8Sound absorptionSound absorption coefficient shall be determined in accordance with EN ISO 354:1993/A1. The soundabsorption characteristics shall be calculated in accordance with EN ISO 11654 using the values for thepractical sound absorption coefficient, p, at the frequencies: 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz and4000 Hz and the single number value for the weighted sound absorption coefficient w.p and w shall be rounded to the nearest 0,05 (p larger than 1 shall be expressed as p=1) and declared inlevels with steps of 0,05. No result of p and w shall be lower than the declared level.
Page 12EN 13168:20014.3.9
Release of dangerous substancesNOTE
See annex ZA.4.3.10 Load resistanceLoad resistance shall be determined in accordance with C.2 and results declared by the manufactorer. No testresult for slabs with a nominal thickness of 50 mm or greater shall be less than 2,2 kN, when tested inaccordance with C.2.4.3.11 Impact resistanceImpact resistance shall be determined in accordance with C.3. Slabs with a nominal thicknes of 50 mm orgreater claiming impact resistance shall be capable of withstanding the impact of a 45 kg mass dropped from a1200 mm height and afterwards of a static load of 1,32 kN according to the test in C.3. Impact resistance testsshall not be applied to slabs previously tested under load resistance.5Test methods5.1SamplingTest specimens shall be taken from the same sample.5.2ConditioningAll products shall be stored for at least 14 days at (23
5) °C and (50
5) % relative humidity with the surfacesexposed to ambient air.5.3 Testing5.3.1 GeneralTa
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