EN 13168:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz lesne volne (WW) - SpecifikacijaWärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Holzwolle (WW) - SpezifikationProduits isolants thermiques pour le bâtiment - Produits manufacturés en laine de bois (WW) - SpécificationThermal insulation products for buildings - Factory made wood wool (WW) products - Specification91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 13168:2012SIST EN 13168:2013en,fr,de01-marec-2013SIST EN 13168:2013SLOVENSKI
STANDARDSIST EN 13168:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13168
November 2012 ICS 91.100.60 Supersedes EN 13168:2008English Version
Thermal insulation products for buildings - Factory made wood wool (WW) products - Specification
Produits isolants thermiques pour le bâtiment - Produits manufacturés en laine de bois (WW) - Spécification
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Holzwolle (WW) - Spezifikation This European Standard was approved by CEN on 6 October 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and 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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13168:2012: ESIST EN 13168:2013

Determination of the declared values of thermal resistance and thermal conductivity . 25A.1General . 25A.2Input data . 25A.3Declared values. 25A.3.1General . 25A.3.2Case where thermal resistance and thermal conductivity are declared . 25A.3.3Case where thermal resistance alone is declared . 26Annex B (normative)
Initial type testing (ITT) and factory production control (FPC) . 28Annex C (normative)
WW multi-layered insulation products . 32C.1General . 32C.2Requirements . 32C.2.1 For all applications . 32C.2.1.1 General . 32C.2.1.2Thermal resistance . 32C.2.1.3Length and width, thickness, squareness, flatness . 32C.2.1.4. Reaction to fire . 32C.2.1.5Durability characteristics . 33C.2.2 For specific applications . 33C.3 Test methods . 33C.4 Evaluation of conformity . 33Annex D (normative)
Specific test methods . 34D.1Chloride content . 34D.2Load resistance. 345D.3Impact resistance. 35Annex E (normative)
Determination of the thermal conductivity in relation to moisture content. 37Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 39SIST EN 13168:2013

Table 1 — Classes for length and width tolerances . 12Table 2 — Classes for thickness tolerances . 12Table 3 — Levels for deviation from flatness . 13Table 4 — Levels for chloride content . 13Table 5 — Levels for tensile strength perpendicular to faces . 14Table 6 — Levels for the deviation from squareness . 15Table 7 — Levels for compressive stress or compressive strength . 16Table 8 — Levels for bending strength . 17Table 9 — Levels for short term water absorption . 17Table 10 — Test methods, specimens and conditions . 20Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 % . 26Table B.1 — Minimum product testing frequencies. 28Table B.1— Minimum product testing frequencies. 29Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics . 30Table ZA.1 — Relevant clauses for Wood wool and relevant clauses for WW multi-layered products and composite WW products with intended use . 40Table ZA.2 — Systems of attestation of conformity . 41Table ZA.3 — Assignment of evaluation of conformity tasks for products under system 1 for reaction to fire and system 3 for other characteristics . 42Table ZA.4 — Assignment of evaluation of conformity tasks for products under system 3 or system 3 combined with system 4 for reaction to fire . 43Figures
Figure D.1 — Test rig for load resistance of slabs . 35Figure D.2 — Test rig for impact resistance of slabs . 36Figure E.1 — Example of a graphic representation of “fψ” . 38Figure ZA.1 — Example CE marking information . 46SIST EN 13168:2013

1 Scope This European Standard specifies the requirements for factory made wood wool (WW) products, with or without facings or coatings, which are used for the thermal insulation of buildings. The products are manufactured in the form of boards or slabs. This European Standard also specifies the requirements for the factory made composite products, made from wood wool in combination with other insulation materials.
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 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 levels and classes required for a given application are to be found in regulations or non-conflicting standards. Products with a declared thermal resistance lower than 0,15 m2⋅K/W or a declared thermal conductivity greater than 0,100 W/(m⋅K) at 10 °C are not covered by this 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 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 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 the apparent density EN 1604, Thermal insulating products for building applications — Determination of dimensional stability under specified temperature and humidity conditions EN 1605, Thermal insulating products for building applications — Determination of deformation under specified compressive 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 to faces EN 1609, Thermal insulating products for building applications — Determination of short term water absorption by partial immersion SIST EN 13168:2013

wood wool long shavings of wood, deriving from a shaving process which insures wood wool with parallel edges, where the length to width ratio is ≥ 20:1 3.1.2
inorganic cementing agent binders used for producing wood wool products are cement, combinations of cement and lime, magnesite and gypsum 3.1.3
wood wool board, wood wool slab rigid insulation product manufactured from loose wood wool, bonded with a mineral binder and compressed to its final thickness 3.1.4
composite wood wool slab composite insulation product in which wood wool is bonded with a mineral binder, on one or both face(s) to other insulating materials
EXAMPLE mineral wool, foamed rigid cellular plastics.
Note 1 to entry: The final thickness of the “two layer” or “three layer” products, produced in this way, is determined during manufacture.
Note 2 to entry: The wood wool layer(s) of composite wood wool slabs cover the bonded insulation layer completely. 3.1.5 level value which is the upper or lower limit of a requirement and given by the declared value of the characteristic concerned 3.1.6 class combination of two levels of the same property between which the performance shall fall 3.1.7 boards, slabs 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 1 to entry: Boards are usually thinner than slabs. They may also be supplied in tapered form. 3.1.8 facing functional or decorative surface layer with a thickness of less than 3 mm, e.g. paper, plastic film, fabric or metal foil, which is not considered as separate thermal insulation layers to be added to the thermal resistance of the product 3.1.9 coating functional or decorative surface layer with a thickness of less than 3 mm usually applied by painting, spraying, pouring or trowelling, which is not considered as separate thermal insulation layers to be added to the thermal resistance of the product 3.1.10 composite insulation product product which can be faced or coated made from two or more layers bonded together by chemical or physical adhesion consisting of at least one factory made thermal insulation material layer SIST EN 13168:2013

CC(i1/i2/y)σc
is the symbol of the declared level for compressive creep Cl is the symbol of the declared level for chloride content CS(10\Y)
is the symbol of the declared level for compressive stress or strength DS(L) is the symbol of the declared value for dimensional stability under specified load andtemperature conditions DS(TH) is the symbol of the declared dimensional stability at specified temperature and relative humidity conditions DS(70,-) is the symbol of the declared value for dimensional stability at specified temperature DS (23,90)
or DS (70,90) is the symbol of the declared value for dimensional stability under specified temperature and relative humidity conditions L is the symbol of the declared class for length tolerances MU is the symbol of the declared value for water vapour diffusion resistance factor P is the symbol of the declared value for flatness tolerances PL(2) is the symbol of the declared level of point load for 2 mm deformation S is the symbol of the declared class for squareness tolerances T is the symbol of the declared class for thickness tolerances TR is the symbol of the declared level for tensile strength perpendicular to faces W is the symbol of the declared class for width tolerances WS is the symbol of the declared level for short term water absorption Z is the symbol of the declared value for water vapour resistance Abbreviated terms used in this standard: WW is Wood Wool board, slab WW-C is Composite Wood Wool board, slab SIST EN 13168:2013

is Reaction to Fire 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. Information on additional properties is given in Annex D. One test result for a product property is the average of the measured values on the number of test specimens given in Table 10. For multi-layered products, additional requirements are given in Annex C. All thermal insulating products used for the manufacture of WW-C-slabs shall comply with the relevant European Product Standards. 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 and in accordance with 5.2, 5.3.2 and Annex E. 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 declared values are to be given for a moisture content equal to the one material has when equilibrium with the air at 23 °C and relative humidity of 50 %;  the measured values shall be expressed with three significant figures;  for products of uniform thickness, the declared thermal resistance, RD, shall always be declared. The thermal conductivity, λD, shall be declared where possible. Where appropriate, for products of non-uniform thickness (i.e. for sloped and tapered products) only the thermal conductivity, λD, shall be declared;  the declared thermal resistance, RD, and declared thermal conductivity, λD, shall be given as limit values representing at least 90 % of the production, determined with a confidence level of 90 %; SIST EN 13168:2013

4.2.6 Compatibility with other materials (chloride content) The compatibility of wood wool slabs and the wood wool layers of composite wood wool slabs with other building materials is assessed through measurements of chloride content, determined in accordance with D.1. No test result shall exceed the values given in Table 4 for the declared level. Table 4 — Levels for chloride content Level Requirement % Cl1 ≤ 0,35 Cl2 ≤ 0,15 Cl3 ≤ 0,06
4.2.7 Tensile strength perpendicular to faces Tensile strength perpendicular to faces, σmt, shall be determined in accordance with EN 1607. No test result shall be lower than the value given in Table 5 for the declared level. SIST EN 13168:2013

≥ 5,0 TR7,5
≥ 7,5 TR10
≥ 10 TR15
≥ 15 TR20
≥ 20 TR40
≥ 40 TR60
≥ 60 TR80 ≥ 80 TR100
≥ 100
For handling purposes, all WW-C products shall have as a minimum level TR5. The tensile strength perpendicular to faces of wood wool slabs shall not be tested. 4.2.8 Reaction to fire of the product as placed on the market Reaction to fire classification of the product, as placed on the market, shall be determined in accordance with EN 13501-1 and the basic mounting and fixing rules given in EN 15715, even if the behaviour is determined under 4.3. NOTE This classification is compulsory and always included in the CE Marking label. Detailed information about the test conditions and the field of application of the classification as stated in the reaction to fire classification report shall be given in the manufacturer’s literature. 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 where appropriate in 4.3.9 on creep. 4.2.9.2 Durability of reaction to fire of the product as placed on the market against ageing/ degradation The reaction to fire performance of WW products as declared by 4.2.8 does not change with time.
This is covered by 4.2.8 reaction to fire of the product as placed on the market. 4.2.9.3 Durability of thermal resistance and thermal conductivity against ageing/ degradation The thermal conductivity of factory made wood wool (WW) products does not change with time. This is covered and considerd by declaration by 4.2.1 thermal conductivity, and any change in thickness is covered by at least one of the 4.3.2 dimensional stability tests, as relevant. SIST EN 13168:2013

4.3.4 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 7 for the declared level. SIST EN 13168:2013

For handling purposes, all products shall have as a minimum level CS(10/Y)20 4.3.5 Apparent density and mass per unit area The apparent density of wood wool slabs, a, shall be determined in accordance with EN 1602. No test result shall 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 and shall be determined in accordance with EN 1602. No test result shall differ from the declared value by more than ± 10 %. 4.3.6 Point load Point load at 2 mm deformation shall be determined in accordance with EN 12430 and declared in levels with steps of 50 N. No test result shall be less than the declared level. 4.3.7 Bending strength The bending strength, σb, shall be determined in accordance with EN 12089. No test result shall be less than the declared level chosen from Table 8.
2-layers composite WW-C-slabs should not be subjected to bending. 4.3.8 Water vapour transmission Water vapour transmission properties of wood wool products including facings and coatings shall be determined in accordance with EN 12086 and declared as the water vapour diffusion resistance factor, µ, for homogeneous products and as the water vapour resistance, Z, for faced or non-homogeneous products. No test result of µ 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 diffusion resistance factor,µ, of wood wool products, either unfaced or faced with a fabric with an open structure may be assumed to be equal to 5. Alternatively, values quoted in EN ISO 10456 may be used. 4.3.9 Short term water absorption Short-term water absorption by partial immersion, Wp, shall be determined in accordance with EN 1609. No test result shall exceed the values given in Table 9 for the declared level. Table 9 — Levels for short term water absorption Level Requirement kg/m² WS 5
≤ 5 WS 3
≤ 3 WS 1
≤ 1
4.3.10 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 declared compressive stress, σc, given in steps of at least 1 kPa, and the results shall be extrapolated thirty times, corresponding to ten years, to obtain the declared levels in accordance with EN 1606. Compressive creep shall be declared in levels, i2, and the total thickness reduction shall be declared in levels, i1, with steps of 0,1 mm at the declared stress. No test result shall exceed the declared levels at the declared stress. NOTE 1 Referring to the designation code CC(i1/i2/y) σc, according to Clause 6, a declared level CC(2,5/2/10)50, for example, indicates a value not exceeding 2 mm for compressive creep and 2,5 mm for total thickness reduction after extrapolation at 10 years (i.e. 30 times one hundred twenty two days of testing) under a declared stress of 50 kPa. SIST EN 13168:2013

4.3.11 Sound absorption Sound absorption coefficient shall be determined in accordance with EN ISO 354. The sound absorption characteristics shall be calculated in accordance with EN ISO 11654 using the values for the practical sound absorption coefficient, αp, at the frequencies: 125 Hz, 250 Hz, 500 Hz, 1 000 Hz, 2 000 Hz and 4 000 Hz and the single number value for the weighted sound absorption coefficient αw. αp and αw shall be rounded to the nearest 0,05 (αp larger than 1 shall be expressed as αp = 1) and declared in levels with steps of 0,05. No result of αp and αw shall be lower than the declared level. 4.3.12 Release of dangerous substances Thermal insulation products shall not release any regulated dangerous substances in excess of the maximum permitted levels specified in relevant European or national regulations. NOTE 1
European test methods are under development. NOTE 2 See Annex ZA. 4.3.13 Reaction to fire of the product in standardized assemblies simulating end-use applications Reaction to fire classification of products in standardized assemblies simulating end-use applications excluding pipe insulation, shall be determined in accordance with EN 13501-1 and the mounting and fixing rules given in EN 15715. This classification offers the opportunity to give a complementary and optional declaration on reaction to fire for standard test configurations of assemblies which include the insulation product. The number of the selected test configuration of assembly (Table 5 of EN 15715:2009) which is used in the test shall be quoted with the Euroclass. Detailed information about the test conditions and the field of application of the classification as stated in the reaction to fire classification report shall be given in the manufacturer’s literature. 4.3.14 Continuous glowing combustion NOTE A test method is under development and the standard will be amended when this is available.
4.3.15 Load resistance Load resistance shall be determined in accordance with D.2 and results declared by the manufacturer. No test result for slabs with a nominal thickness of 50 mm or greater shall be less than 2,2 kN, when tested in accordance with D.2. 4.3.16 Impact resistance Impact resistance shall be determined in accordance with D.3. Slabs with a nominal thickness of 50 mm or greater claiming impact resistance shall be capable of withstanding the impact of a 45 kg mass dropped from SIST EN 13168:2013
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