SIST EN 13163:2013
(Main)Thermal insulation products for buildings - Factory made expanded polystyrene (EPS) products - Specification
Thermal insulation products for buildings - Factory made expanded polystyrene (EPS) products - Specification
This European Standard specifies the requirements for factory made expanded polystyrene products, with or without rigid or flexible facings or coatings, which are used for the thermal insulation of buildings. The products are manufactured in the form of boards or rolls or other preformed ware (flat, tapered, tongue and grooves, shiplap, profiled etc.). Products covered by this standard are also used for sound insulation and in prefabricated thermal insulation systems and composite panels; the performance of systems incorporating these products is not covered. This standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling. This standard does not specify the required class or 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 0,25 m² .K/W or a declared thermal conductivity at 10C greater than 0,060 W/(m.K) are not covered by this standard. This standard does not cover in-situ insulation products (covered by FprEN 16025-1 and -2), products intended to be used for the insulation of building equipment and industrial installations (covered by EN 14309), products intended to be used in civil engineering applications (covered by EN 14933) and products intended to be used in beam and block systems in floors (covered by EN 15037-4).
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus expandiertem Polystyrol (EPS) - Spezifikation
Diese Europäische Norm legt die Anforderungen an werkmäßig hergestellte Produkte aus expandiertem Polystyrol mit oder ohne starre oder flexible Kaschierung oder Beschichtung fest, die für die Wärmedämmung von Gebäuden benutzt werden. Die Produkte werden in Form von Platten, Rollen oder anderer vorgeformter Ware (flach, keilförmig oder mit besonderer Profilierung) hergestellt.
Die vorliegende Norm schließt mehrlagige Dämmstoffe aus EPS ein. Die Anweisungen in Anhang D sind zu befolgen.
Die in dieser Norm beschriebenen Produkte werden auch für die Schalldämmung und in vorgefertigten Wärmedämmsystemen und Mehrschicht Verbundplatten angewendet. Die Eigenschaften von Systemen, in die diese Produkte integriert sind, werden nicht behandelt.
Die vorliegende Norm beschreibt die Produkteigenschaften und enthält die Prüfverfahren und Festlegungen für die Konformitätsbewertung, die Kennzeichnung und die Etikettierung.
Diese Norm legt keine Klassen oder Leistungsstufen für eine vorgegebene Eigenschaft fest, die ein Produkt erreichen muss, um für einen bestimmten Anwendungsfall tauglich zu sein. Die für bestimmte Anwendungen benötigten Klassen und Stufen können Regelwerken oder übereinstimmenden Normen entnommen werden.
Diese Norm gilt nicht für Produkte, deren Nennwert des Wärmedurchlasswiderstandes niedriger als 0,25 m2K/W oder deren Nennwert der Wärmeleitfähigkeit größer als 0,060 W/(mK) bei 10 °C ist.
Die vorliegende Norm gilt weder für in situ Dämmstoffe noch für Produkte, die zur Dämmung von haus-technischen und betriebstechnischen Anlagen bestimmt sind, oder für Produkte, die für die Anwendung im konstruktiven Ingenieurbau vorgesehen sind.
Produits isolants thermiques pour le bâtiment - Produits manufacturés en polystyrène expansé (EPS) - Spécification
La présente Norme européenne spécifie les exigences auxquelles doivent satisfaire les produits manufacturés en polystyrène expansé, avec ou sans parements rigides ou souples ou enduits de finition, utilisés pour l'isolation thermique des bâtiments. Les produits sont fabriqués sous forme de panneaux ou de rouleaux ou tout autre produit préformé (plat biseauté ou profilé de façons particulières).
La présente norme inclut les produits isolants EPS multicouches. Les instructions de l'Annexe D doivent être suivies.
Les produits couverts par la présente norme sont également utilisés pour l'isolation phonique et dans des systèmes d'isolation thermique et des panneaux composites préfabriqués ; les performances des systèmes incorporant ces produits ne sont pas définies.
La présente norme décrit les caractéristiques des produits et contient des modes opératoires d'essai, d'évaluation de la conformité, de marquage et d'étiquetage.
La présente norme ne spécifie pas, pour une propriété donnée, la classe ou le niveau exigé(e) que doit atteindre un produit pour démontrer son aptitude à l'emploi dans une application particulière. Les classes et niveaux requis pour une application donnée figurent dans les réglementations ou les normes non conflictuelles.
Les produits dont la résistance thermique déclarée à une température de 10 °C est inférieure à 0,25 m2 K/W ou dont la conductivité thermique déclarée à une température de 10 °C est supérieure à 0,060W/(m K) ne relèvent pas du domaine d'application de la présente norme.
Les produits isolants mis en œuvre in situ, les produits destinés à être utilisés pour l'isolation des équipements du bâtiment et des installations industrielles et les produits destinés à être utilisés dans des applications de génie civil ne relèvent pas du domaine d'application de la présente norme.
Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz ekspandiranega polistirena (EPS) - Specifikacija
Ta evropski standard določa zahteve za proizvode iz ekspandiranega polistirena (EPS) s trdno ali prožno površinsko prevleko ali lakom ali brez, ki se uporabljajo za toplotno izolacijo stavb. Proizvodi so izdelani v obliki plošč ali kolutov ali v drugih oblikah (ploščati, konusni, z utori in jezički, s prekrivnimi deli, profilirani itd.). Proizvodi iz tega standarda se uporabljajo tudi za zvočno izolacijo ter v predizdelanih sistemih toplotne izolacije in vezanih ploščah; lastnosti sistemov iz teh proizvodov niso opisane. Ta standard opisuje lastnosti proizvodov ter zajema postopke za preskušanje, vrednotenje skladnosti, označevanje in etiketiranje. Ta standard ne določa zahtevanega razreda ali ravni določene lastnosti, ki jo mora proizvod doseči, da se dokaže njegova primernost namenu za posamezno vrsto uporabe. Zahtevani razredi in ravni za posamezno uporabo so določeni v uredbah ali standardih, ki niso v nasprotju s tem standardom. Proizvodi z deklarirano toplotno upornostjo, nižjo od 0,25 m² K/W, ali deklarirano toplotno prevodnostjo, višjo od 0,060 W/mK pri 10 °C, v tem standardu niso zajeti. Ta standard ne zajema izolacijskih proizvodov, izdelanih na kraju samem (zajeti so v standardu FprEN 16025-1 in -2), za izolacijo gradbene opreme in industrijskih napeljav (zajema jih standard EN 14309), proizvodov za inženirske objekte (zajema jih standard EN 14933) ter proizvodov za nosilne in blokovne sisteme v tleh (zajema jih standard EN 15037-4).
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 ekspandiranega polistirena (EPS) - SpecifikacijaWärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus expandiertem Polystyrol (EPS) - SpezifikationProduits isolants thermiques pour le bâtiment - Produits manufacturés en polystyrène expansé (EPS) - SpécificationThermal insulation products for buildings - Factory made expanded polystyrene (EPS) products - Specification91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 13163:2012SIST EN 13163:2013en,fr,de01-marec-2013SIST EN 13163:2013SLOVENSKI
STANDARDSIST EN 13163:20091DGRPHãþD
SIST EN 13163:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13163
November 2012 ICS 91.100.60 Supersedes EN 13163:2008English Version
Thermal insulation products for buildings - Factory made expanded polystyrene (EPS) products - Specification
Produits isolants thermiques pour le bâtiment - Produits manufacturés en polystyrène expansé (EPS) - Spécification Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus expandiertem Polystyrol (EPS) - SpezifikationThis 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 13163:2012: ESIST EN 13163:2013
EN 13163:2012 (E) 2 Contents Page Foreword .51Scope .72Normative references .73Terms, definitions, symbols, units and abbreviated terms .93.1Terms and definitions .93.2Symbols, units and abbreviated terms . 104Requirements . 134.1General . 134.2For all applications . 134.3For specific applications . 165Test methods . 225.1Sampling . 225.2Conditioning . 225.3Testing . 236Designation code . 267Evaluation of conformity . 277.1General . 277.2Initial type testing . 277.3Factory production control . 278Marking and labelling . 27Annex A (normative) . 29A.1General . 29A.2Input data . 29A.3Declared values. 29Annex B . 31B.1Initial type testing and factory production control . 31B.2Indirect testing for factory production control . 36Annex C . 38Annex D (normative)
Multi layered EPS products . 39D.1General . 39D.2Requirements . 39D.3Test methods . 40D.4Evaluation of conformity . 40Annex E (informative)
Verification of the reaction to fire classification of raw materials . 41E.1General . 41E.2Material covered by this annex . 41E.3Preparation of samples . 41E.4Initial type tests for EPS raw material . 41E.5Factory Production Control for EPS raw material . 42E.6Certification of conformity for EPS raw material . 42E.7Continuous surveillance of EPS raw material . 43SIST EN 13163:2013
EN 13163:2012 (E) 3 E.8Material certificate for EPS raw material . 43E.9Requirement for raw material supply . 44Annex F (informative)
Additional properties . 45F.1General . 45F.2Long-term compressive behaviour . 45F.3Shear behaviour . 45F.4Water vapour diffusion resistance factor . 46F.5Examples of determination of thermal conductivity . 46F.6Additional information . 47Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products directive . 48Bibliography . 56 Tables Table 1 — Classes of dimensional tolerances . 15Table 2 — Dimensional stability under specified temperature or specified temperature and humidity conditions . 16Table 3 — Levels for compressive stress at 10 % deformation . 17Table 4 — Levels for bending strength . 17Table 5 — Levels of deformation under specified compressive load and temperature conditions . 18Table 6 — Levels for dynamic stiffness . 20Table 7 — Classes for thickness tolerances . 21Table 8 — Levels for compressibility . 21Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 % . 30Table B.1 — Number of tests for ITT and minimum product testing frequencies . 31Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics . 34Table C.1 — Classification of EPS products . 38Table C.2 — Classification EPS products with acoustical properties . 38Table E.1 — Testing frequency of raw material . 43Table F.1 — Correlation between bending strength and shear strength . 45Table F.2 —Tabulated values of water vapour diffusion resistance index and water vapour permeability . 46Table ZA.1 — Relevant clauses for EPS and intended uses . 49Table ZA.2 — Systems of attestation of conformity . 50Table ZA.3.1 — Assignment of evaluation of conformity tasks for products under system 1 for reaction to fire and system 3 for other characteristics . 51SIST EN 13163:2013
EN 13163:2012 (E) 4 Table ZA.3.2 – Assignment of evaluation of conformity tasks for products under system 3 or 3 combined with system 4 for reaction to fire . 52 Figures Figure F.1 — Example of a relationship between thermal conductivity (at 50 mm reference thickness and 10 °C mean temperature) apparent density for indirect testing of non infrared absorbing EPS . 47Figure ZA.1 — Example CE marking information . 55 SIST EN 13163:2013
EN 13163:2012 (E) 5 Foreword This document (EN 13163:2012) 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 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. 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 EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document supersedes EN 13163:2008. The main changes to EN 13163:2008 are: a) better harmonisation between the individual standards of the package (EN 13162 to EN 13171) on definitions, requirements, classes and levels; b) new annex on multi-layered products; c) new annex on voluntary verification of the reaction to fire classification of raw materials; d) changes on some editorial and technical content and addition of information on some specific items such as for EPS dimensional stability, compressibility; e) addition of links to EN 15715, Thermal insulation products — Instructions for mounting and fixing for reaction to fire testing — Factory made products; f) changes to the Annex ZA. This standard is one of a series of standards for thermal 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 European package of standards. 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 expanded polystyrene (EPS) products — Specification EN 13164, Thermal insulation products for buildings — Factory made extruded polystyrene foam (XPS) products — Specification SIST EN 13163:2013
EN 13163:2012 (E) 6 EN 13165, Thermal insulation products for buildings — Factory made rigid polyurethane foam (PU) products — Specification EN 13166, Thermal insulation products for buildings — Factory made phenolic foam (PF) products — 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 expanded perlite board (EPB) products — 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 The reduction in energy used and emissions produced during the installed life of insulation products exceeds by far the energy used and emissions made during the production and disposal processes.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13163:2013
EN 13163:2012 (E) 7
1 Scope This European Standard specifies the requirements for factory made expanded polystyrene products, with or without rigid or flexible facings or coatings, which are used for the thermal insulation of buildings. The products are manufactured in the form of boards or rolls or other preformed ware (flat, tapered, tongue and grooves, shiplap, profiled etc.). Products covered by this standard are also used for sound insulation and in prefabricated thermal insulation systems and composite panels; the performance of systems incorporating these products is not covered. This standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling. This standard does not specify the required class or 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 0,25 m²⋅K/W or a declared thermal conductivity at 10 °C greater than 0,060 W/(m⋅K) are not covered by this standard. This standard does not cover in-situ insulation products (covered by FprEN 16025-1 and -2), products intended to be used for the insulation of building equipment and industrial installations (covered by EN 14309), products intended to be used in civil engineering applications (covered by EN 14933) and products intended to be used in beam and block systems in floors (covered by EN 15037-4). 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 1603, Thermal insulating products for building applications — Determination of dimensional stability under constant normal laboratory conditions (23 °C / 50 % relative humidity) 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 SIST EN 13163:2013
EN 13163:2012 (E) 8 EN 12085, Thermal insulating products for building applications — Determination of linear dimensions of test specimens EN 12086:1997, Thermal insulating products for building applications — Determination of water vapour transmission properties EN 12087, Thermal insulating products for building applications — Determination of long-term water absorption by immersion EN 12088, Thermal insulating products for building applications — Determination of long-term water absorption by diffusion 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 12091, Thermal insulating products for building applications — Determination of freeze-thaw resistance EN 12429, Thermal insulating products for building applications — Conditioning to moisture equilibrium under specified temperature and humidity conditions EN 12431, Thermal insulating products for building applications — Determination of thickness for floating floor insulation products EN 12667, Thermal performance of building material 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 13172:2012, Thermal insulation products — Evaluation of conformity EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 13793, Thermal insulating products for building applications — Determination of behaviour under cyclic loading EN 13820, Thermal insulating materials for building applications — Determination of organic content EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item EN 15715:2009, Thermal insulation products — Instructions for mounting and fixing for reaction to fire testing — Factory made products EN 29052-1, Acoustics — Determination of dynamic stiffness — Part 1: Materials used under floating floors in dwellings (ISO 9052-1) EN ISO 1182, Reaction to fire tests for building products — Non-combustibility test (ISO 1182) EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific value) (ISO 1716) EN ISO 9229:2007, Thermal insulation — Vocabulary (ISO 9229:2007) SIST EN 13163:2013
EN 13163:2012 (E) 9 EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame — Part 2: Single-flame source test (ISO 11925-2) ISO 16269-6:2005, Statistical interpretation of data — Part 6: Determination of statistical tolerance intervals 3 Terms, definitions, symbols, units and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 9229:2007 apply with exception or in addition of the following: 3.1.1
expanded polystyrene (EPS) rigid cellular plastic material, manufactured by moulding beads or granules of expandable polystyrene or one of its copolymers, with an air filled closed cellular structure, which is divided into four types related to the intended use: EPSi: for load bearing applications, where i stands for the declared value (expressed in compressive stress at 10 % deformation) EPS S: for non load bearing applications EPS SD: for non load bearing applications with acoustic properties EPS T: for floating floor applications 3.1.2 expanded polystyrene block rigid insulation product or material generally of rectangular cross section and with a thickness not significantly smaller than the width, supplied trimmed or untrimmed 3.1.3
expanded polystyrene board rigid insulation product (cut, moulded, or continuously foamed) of rectangular shape and cross section in which the thickness is significantly smaller than the other dimensions; it may be of uniform thickness or tapered and the edges may be of various sorts (e.g. square, half lapped, tongue and groove) 3.1.4
expanded polystyrene roll boards or strips bonded to a flexible facing, supplied in a wound or folded form, which form a continuous insulation layer when unrolled 3.1.5
preformed ware insulation shapes formed by cutting or routing from blocks or boards or by shape moulding 3.1.6
level value, which is the upper or lower limit of a requirement, and given by the declared value of the characteristic concerned 3.1.7
class combination of two levels of the same property between which the performance shall fall SIST EN 13163:2013
EN 13163:2012 (E) 10 3.1.8
multi-layered insulation product
product which can be faced or coated made from two or more layers of a thermal insulation material from the same European Standard, which are bonded together either horizontally by chemical or physical adhesion 3.1.9
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 3.1.10
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 layer to be added to the thermal resistance of the product 3.1.11
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 layer to be added to the thermal resistance of the product 3.2 Symbols, units and abbreviated terms
Symbols and units used in this standard: 1 - α is the prediction interval 1b is the width mmb0 is a regression coefficient kPab1 is a regression coefficient kPaxm³/kgc is the compressibility mmd is the thickness mmδ is the water vapour permeability mg/(Pa⋅h⋅m)dB is the thickness under a load of 2 kPa after removal of an additional load of 48 kPa mmdL is the thickness under a load of 250 Pa mmdN is the nominal thickness of the product mmds is the thickness of the test specimen mm∆εb is the relative change in width %∆εd is the relative change in thickness %∆εl is the relative change in length %ε1 is the deformation after step A in accordance with EN 1605 %ε2 is the deformation after step B in accordance with EN 1605 %εct is the compressive creep %SIST EN 13163:2013
EN 13163:2012 (E) 11 εl.max is the maximum relative deformation in accordance with EN 13793 %εt is the total relative thickness reduction %Edyn is the dynamic elasticity modulus MN/m²G is the shear modulus kPai is a counter 1k is a factor related to the number of test results available 1l is the length mmλ90, 90 is the 90 % fractile with a confidence level of 90 % for the thermal conductivity W/(m⋅K)λD is the declared of 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)λpred is the predicted thermal conductivity with a prediction interval of 90 % W/(m⋅K)λU is the design value of thermal conductivity W/(m⋅K)µ is the water vapour diffusion resistance factor 1n is the number of test results 1ρa is the apparent density kg/m³ρmean is the mean density kg/m³R90/90 is the 90 % fractile with a confidence level of 90 % for the thermal resistance m²⋅K/WRD is the declared thermal resistance m²⋅K/WRi is one test result of thermal resistance m²⋅K/WRmean is the mean thermal resistance m²⋅K/WRU is the design value of thermal resistance m²⋅K/Ws' is the dynamic stiffness MN/m³σ10 is the compressive stress at 10 % deformation kPaσ10, mean is the mean compressive stress at 10 % deformation kPaσ10, pred is the predicted compressive stress at 10 % deformation with a prediction interval of 90 % kPaσb is the bending strength kPaσc is the compressive stress kPaσi is the compressive stress chosen for testing according to EN 13793 kPaσmt is the tensile strength perpendicular to faces kPaSb is the deviation from squareness on length and width mm/mSIST EN 13163:2013
EN 13163:2012 (E) 12 Sd is the deviation from squareness on thickness mm/msλ is the estimate of the standard deviation of the thermal conductivity
W/(m⋅K)Smax is the deviation from flatness mmsR is the estimate of the standard deviation of the thermal resistance
m²⋅K/Wsσ is the estimate of the standard deviation of the compressive stress kPa
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