SIST EN 13165:2013
(Main)Thermal insulation products for buildings - Factory made rigid polyurethane foam (PU) products - Specification
Thermal insulation products for buildings - Factory made rigid polyurethane foam (PU) products - Specification
This European Standard specifies the requirements for factory made rigid polyurethane foam (PU) products, with or without facings or coatings, which are used for the thermal insulation of buildings. PU includes both PIR and PUR products. The products are manufactured in the form of boards. Products covered by this standard are also used 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 level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The 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 greater than 0,060 W/(m.K) at 10°C are not covered by this European Standard. This standard does not cover in situ insulation products and products intended to be used for the insulation of building equipment and industrial installations(covered by EN 14308).
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Polyurethan-Hartschaum (PU) – Spezifikation
Diese Europäische Norm legt die Anforderungen an werkmäßig hergestellte Produkte aus Polyurethan-
Hartschaum (PU) mit oder ohne Kaschierung oder Beschichtung fest, die für die Wärmedämmung von
Gebäuden benutzt werden. PU umfasst sowohl PIR- als auch PUR-Produkte. Die Produkte werden in Form
von Platten hergestellt.
Die in dieser Norm beschriebenen Produkte werden auch in vorgefertigten Wärmedämmsystemen und
Mehrschicht-Platten 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 Leistungsstufen für eine vorgegebene Eigenschaft fest, die ein Produkt erreichen
muss, um für einen bestimmten Anwendungsfall tauglich zu sein. Die für bestimmte Anwendungen benötigten
Stufen können Regelwerken oder nicht entgegenstehenden Normen entnommen werden.
Diese Europäische Norm gilt nicht für Produkte, deren Nennwert des Wärmedurchlasswiderstandes niedriger
als 0,25 m2⋅K/W oder deren Nennwert der Wärmeleitfähigkeit größer als 0,060 W/(m⋅K) bei 10 °C ist.
Die vorliegende Norm gilt weder für in situ-Dämmprodukte noch für Produkte, die zur Dämmung von haustechnischen
und betriebstechnischen Anlagen (durch EN 14308 abgedeckt) vorgesehen sind.
Produits isolants thermiques pour le bâtiment - Produits manufacturés en mousse rigide de polyuréthane (PU) - Spécification
La présente Norme européenne spécifie les exigences auxquelles doivent satisfaire les produits manufacturés en mousse rigide de polyuréthanne (PU), avec ou sans parements ou enduits de finition, utilisés pour l'isolation thermique des bâtiments. Le PU comprend les produits PIR et PUR. Les produits sont fabriqués sous forme de panneaux. La présente norme inclut les produits isolants PU multicouches. Les instructions de l'Annexe D doivent être suivies.
Les produits couverts par la présente norme sont également utilisés dans des systèmes d'isolation thermique et dans 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/le niveau exigé(e) que doit atteindre un produit pour démontrer son aptitude à l'emploi dans une application particulière. Les classes/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 0,25 m2K/W ou dont la conductivité thermique déclarée à une température de 10 °C est supérieure à 0,060 W/(mK) ne relèvent pas du domaine d'application de la présente Norme européenne.
Les produits isolants mis en œuvre in situ et les produits destinés à être utilisés pour l'isolation des équipements du bâtiment et des installations industrielles ne relèvent pas du domaine d'application de la présente norme.
Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz trde poliuretanske pene (PUR) - Specifikacija
Ta evropski standard določa zahteve za površinsko obdelane ali lakirane ali površinsko neobdelane ali nelakirane proizvode iz trde poliuretanske pene (PU), ki se uporabljajo za toplotno izolacijo stavb. PU zajema proizvode PIR in PUR. Proizvodi so izdelani v obliki plošč. Proizvodi iz tega standarda se uporabljajo tudi 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 zahtevane ravni določene lastnosti, ki jo mora proizvod doseči, da se dokaže njegova primernost namenu za posamezno vrsto uporabe. Zahtevane ravni za posamezno uporabo so določene 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 evropskem standardu niso zajeti. Ta standard ne zajema toplotnoizolacijskih proizvodov, izdelanih na kraju samem, ter proizvodov za izolacijo gradbene opreme in industrijskih napeljav (zajema jih standard EN 14308).
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz trde poliuretanske pene (PUR) - SpecifikacijaWärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Polyurethan-Hartschaum (PU) – SpezifikationProduits isolants thermiques pour le bâtiment - Produits manufacturés en mousse rigide de polyuréthane (PU) - SpécificationThermal insulation products for buildings - Factory made rigid polyurethane foam (PU) products - Specification91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 13165:2012SIST EN 13165:2013en,fr,de01-marec-2013SIST EN 13165:2013SLOVENSKI
STANDARDSIST EN 13165:20091DGRPHãþD
SIST EN 13165:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13165
November 2012 ICS 91.100.60 Supersedes EN 13165:2008English Version
Thermal insulation products for buildings - Factory made rigid polyurethane foam (PU) products - Specification
Produits isolants thermiques pour le bâtiment - Produits manufacturés en mousse rigide de polyuréthane (PU) - Spécification
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Polyurethan-Hartschaum (PU) - 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 13165:2012: ESIST EN 13165:2013
EN 13165:2012 (E)
2Contents
Page Foreword . 41Scope . 62Normative references . 63Terms, definitions, symbols, units and abbreviated terms . 73.1Terms and definitions . 73.2Symbols, units and abbreviated terms . 84Requirements . 104.1General . 104.2For all applications . 114.3For specific applications . 135Test methods . 175.1Sampling . 175.2Conditioning . 175.3Testing . 176Designation code . 207Evaluation of conformity . 217.1General . 217.2Initial type testing . 217.3Factory production control . 228Marking and labelling . 22Annex A (normative)
Determination of the declared values of thermal resistance and thermal conductivity . 23A.1General . 23A.2Input data . 23A.3Declared values . 23Annex B (normative)
Initial type testing (ITT) and factory production control (FPC) . 25Annex C (normative)
Determination of the aged values of thermal resistance and
thermal conductivity . 29C.1General . 29C.2Sampling and test specimen preparation . 29C.3Determination of the initial value of thermal conductivity . 30C.4Determination of the accelerated aged value of thermal conductivity . 31C.5Fixed increment procedure . 33C.6Declaration of the aged values of thermal resistance and thermal conductivity . 35Annex D (normative)
PU multi-layered insulation products . 36D.1General . 36D.2Requirements . 36D.3Test methods . 37D.4Evaluation of conformity . 37Annex E (informative)
Additional properties . 38E.1General . 38E.2Bending strength . 38E.3Shear behaviour . 38E.4Compressive stress at 2% deformation . 38E.5Long term water absorption by diffusion . 38E.6Freeze-thaw resistance . 38E.7Apparent density . 39SIST EN 13165:2013
EN 13165:2012 (E)
3Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 40ZA.1Scope and relevant characteristics . 40ZA.2Procedures for attestation of conformity of factory made rigid polyurethane foam products . 42ZA.3CE Marking and labelling . 46Bibliography . 48 Tables Table 1 — Tolerances on length and width . 11Table 2 — Classes for thickness tolerances . 12Table 3 — Deviation from flatness . 12Table 4 — Test conditions for dimensional stability under specified temperature and humidity conditions . 13Table 5 — Levels for dimensional stability for test conditions 1, 2, 3 . 13Table 6 — Levels for dimensional stability for test condition 4 . 14Table 7 — Levels for deformation under specified compressive load and temperature conditions . 14Table 8 — Levels for compressive stress or compressive strength . 15Table 9 — Levels for tensile strength perpendicular to faces . 15Table 10 — Levels for one sided wetting behaviour . 16Table 11 — Test methods, test specimens and conditions . 19Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 % . 24Table B.1 — Minimum number of tests for ITT and minimum product testing frequencies . 25Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics . 27Table C.1 — Safety increments to be added to the measured accelerated aged value of thermal conductivity . 32Table C.2 — Increments for calculating the aged value of thermal conductivity . 34Table E.1 — Test methods, test specimens, conditions and minimum testing frequencies . 39Table ZA.1 — Relevant clauses for factory made rigid Polyurethane foam products and intended use . 41Table ZA.2 — Systems of attestation of conformity . 42Table ZA.3.1 — Assignment of evaluation of conformity tasks for products under system 1 for reaction to fire and system 3 for other characteristics . 43Table ZA.3.2 — Assignment of evaluation of conformity tasks for products under system 3 or system 3 combined with system 4 for reaction to fire . 44 Figures Figure C.1 — Flow chart of the alternative ageing procedures . 30Figure ZA.1 — Example CE marking information . 47
SIST EN 13165:2013
EN 13165:2012 (E)
4Foreword This document (EN 13165:2012) 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 supersedes EN 13165:2008. 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. Compared with EN 13165:2008, the main changes are: a) better harmonisation between the different standards of the package (EN 13162 to EN 13171) on definitions, requirements, classes and levels; b) new normative annex on multi-layered products; c) changes on some editorial and technical content and addition of information on some specific items for PU products such as: PU product term, dimensional stability, point load (cancelled), water absorption, water vapour transmission; d) addition of links to EN 15715, Thermal insulation products – Instructions for mounting and fixing for reaction to fire testing – Factory made products; e) 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 has 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 expanded polystyrene (EPS) products — Specification EN 13164, Thermal insulation products for buildings — Factory made extruded polystyrene foam (XPS) products — Specification EN 13165, Thermal insulation products for buildings — Factory made rigid polyurethane foam (PU) products — Specification SIST EN 13165:2013
EN 13165:2012 (E)
5EN 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 13165:2013
EN 13165:2012 (E)
61 Scope This European Standard specifies the requirements for factory made rigid polyurethane foam (PU) products, with or without facings or coatings, which are used for the thermal insulation of buildings. PU includes both PIR and PUR products. The products are manufactured in the form of boards.
Products covered by this standard are also used 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 level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The 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 greater than 0,060 W/(m⋅K) at 10 °C are not covered by this European Standard. This standard does not cover in situ insulation products and products intended to be used for the insulation of building equipment and industrial installations (covered by EN 14308).
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 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 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 SIST EN 13165:2013
EN 13165:2012 (E)
7EN 12667:2001, 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 13172:2012, Thermal insulating 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 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 ISO 354, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354) 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 4590, Rigid cellular plastics — Determination of the volume percentage of open cells and closed cells (ISO 4590) 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) 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 rigid polyurethane foam (PU) family of rigid cellular thermoset polymeric insulation products with a substantially closed cell structure including both polymer types based on PIR and PUR 3.1.1.1 PIR rigid cellular thermoset polymeric insulation product with a substantially closed cell structure based on polymers mainly of polyisocyanurate groups SIST EN 13165:2013
EN 13165:2012 (E)
83.1.1.2 PUR rigid cellular thermoset polymeric insulation product with a substantially closed cell structure based on polymers mainly of polyurethane groups Note 1 to entry: Regarding the properties described in this standard, PIR and PUR types are not distinguished between. 3.1.2 level value which is the upper or lower limit of a requirement and given by the declared value of the characteristic concerned 3.1.3 class combination of two levels of the same property between which the performance shall fall 3.1.4 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 1 to entry: Boards are usually thinner than slabs. They may also be supplied in tapered form. 3.1.5 facing functional or decorative surface layer with a thickness of less than 3mm, e.g. paper, plastic film, fabric or metal foil, which are not considered as separate thermal insulation layer to be added to the thermal resistance of the product 3.1.6
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 3.1.7 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 3.1.8 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 by chemical or physical adhesion
3.2 Symbols, units and abbreviated terms For the purposes of this document, the following symbols and units apply. αp is the practical sound absorption coefficient
– αw is the weighted sound absorption coefficient – b is the width mm d is the thickness mm dN is the nominal thickness of the product mm dS is the thickness of the test specimen mm ∆εb is the relative change in width % SIST EN 13165:2013
EN 13165:2012 (E)
9∆εd is the relative change in thickness % ∆εl is the relative change in length % Xct is the compressive creep % εt is the total thickness reduction % k is a factor related to the number of test results – ka is a factor related to the number of aged test results – ki is a factor related to the number of initial test results – 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) λmean,a is the mean thermal conductivity of aged values W/(m⋅K) λmean,i is the mean thermal conductivity of initial values W/(m⋅K) λU is the design thermal conductivity W/(m⋅K) ∆λa is the ageing increment from measured aged values of thermal conductivity W/(m⋅K) ∆λf is the fixed ageing increment 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 RU is the design thermal resistance m2⋅K/W 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) sλ,a is the estimate of the standard deviation of the aged values of the thermal conductivity W/(m⋅K) sλi is the estimate of the standard deviation of the initial values of the thermal conductivity W/(m⋅K) 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 Wlt is the long term water uptake by total immersion % Vol. Wsp Wlp is the short term water uptake by partial immersion is the long term water uptake by partial immersion kg/m2kg/m2 Z is the water vapour resistance m2⋅h⋅Pa/mg SIST EN 13165:2013
EN 13165:2012 (E)
10 AP is the symbol of the declared value of practical sound absorption coefficient AW is the symbol of the declared value of weighted sound absorption coefficient CC(i1/i2/y)σc is the symbol of the declared level for compressive creep CS(10\Y) is the symbol of the declared level for compressive stress or strength DLT(i)5
DS(23,90)or DS(70,90) is the symbol of the declared level for deformation under load and temperature at conditions set with a maximum of 5 % deformation is the symbol of the declared level for dimensional stability under specified temperature and humidity DS(70,-)or
DS(20,-) is the symbol of the declared level for dimensional stability under specified temperature MU is the symbol of the declared value for the water vapour diffusion resistance factor FW is the symbol of the declared level for change in deviation from flatness after one-sided wetting 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 WL (T) is the symbol of the declared value for long term water absorption by total immersion WS (P) WL (P) is the symbol of the declared value for short term water absorption by partial immersion is the symbol of the declared value for long term water absorption by partial immersion Z is the symbol of the declared value for water vapour resistance Abbreviated terms used in this standard PU is rigid PolyUrethane foam including PIR and PUR ITT is Initial Type Test FPC is Factory Production Control MLn is Multi-Layered product (n for number of layers) RtF 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. One test result for a product property is the average of the measured values on the number of test specimens given in Table 11. For multi-layered products, additional requirements are given in Annex D. NOTE Information on additional properties is given in Annex E. SIST EN 13165:2013
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