SIST EN 14317-1:2005
(Main)Thermal insulation products for buildings - In-situ thermal insulation formed from exfoliated vermiculite (EV) products - Part 1: Specification for bonded and loose-fill products before installation
Thermal insulation products for buildings - In-situ thermal insulation formed from exfoliated vermiculite (EV) products - Part 1: Specification for bonded and loose-fill products before installation
This European Standard specifies the requirements for the four types of exfoliated vermiculite products Vermiculite Aggregate (EVA), Coated Vermiculite (EVC), Hydrophobic Vermiculite (EVH) and Premixed Vermiculite (EVM), containing less than 1 % organic material as defined by annex D for in-situ insulation of roofs, ceilings, walls and floors.
This Part 1 of this standard is a specification for the insulation products before installation.
This Part 1 of this standard describes the product characteristics and includes procedures for testing, evalua-tion of conformity, marking and labelling.
This European Standard does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The levels required for a given application are to be found in regulations or non-conflicting standards.
This European Standard does not cover factory made insulation products of formed shapes and boards made with exfoliated vermiculite or in-situ products intended to be used for the insulation of building equipment and industrial installations.
This European Standard does not specify performance requirements for airborne sound insulation and for acoustic absorption applications.
Wärmedämmstoffe für Gebäude - An der Verwendungsstelle hergestellte Wärmedämmung mit Produkten aus expandiertem Vermiculite (EV) - Teil 1: Spezifikation für gebundene und Schüttdämstoffe vor dem Einbau
Dieses Dokument legt die Anforderungen an die vier Produktarten von expandiertem Vermiculite, Vermiculitekörner (en: Vermiculite Aggregate, EVA), beschichtetes Vermiculite (en: Coated Vermiculite, EVC), Wasserabweisendes Vermiculite (en: Hydrophobic Vermiculite, EVH) und vorgemischtes Vermiculite (en: Premixed Vermiculite, EVM) fest, deren Gehalt an organischen Stoffen weniger als 1 % beträgt, wie in Anhang D für an der Verwendungsstelle hergestellte Wärmedämmung von Dächern, Decken, Wänden und Fußböden definiert.
Der vorliegende Teil 1 dieser Norm ist eine Spezifikation für die wärmedämmenden Produkte vor dem Einbau.
Dieser Teil 1 der Norm beschreibt die Produktmerkmale und enthält Verfahren für Prüfung, Konformitätsbewertung sowie Kennzeichnung und Etikettierung.
Dieses Dokument legt keine Anforderungsstufen für eine bestimmte Eigenschaft fest, die ein Produkt erreichen muss, um für einen bestimmten Anwendungszweck gebrauchstauglich zu sein. Die für einen bestimmten Anwendungszweck erforderlichen Stufen sind Vorschriften oder übereinstimmenden Normen zu entnehmen.
Dieses Dokument gilt nicht für werkmäßig hergestellte wärmedämmende Produkte in vorgefertigten Formen und Platten aus expandiertem Vermiculite oder an der Verwendungsstelle hergestellte Produkte zur Wärmedämmung von Gebäudeausrüstungen und Industrieanlagen.
Dieses Dokument legt keine Leistungsanforderungen an die Luftschalldämmung und die Schallabsorption von Anwendungen fest.
Produits isolants thermiques pour le bâtiment - Produits d'isolation thermique a base de vermiculite exfoliée formés en place - Partie 1: Spécifications relatives aux produits en vrac ou agglomérés avant mise en oeuvre
Le présent document spécifie les exigences concernant les quatre types de produits en vermiculite exfoliée : granulats de vermiculite (EVA), vermiculite enrobée (EVC), vermiculite hydrophobe (EVH) et vermiculite prémélangée (EVM), contenant moins de 1 % de matériaux organiques selon la définition de l'Annexe D concernant l'isolation in situ des toitures, des combles, des murs et des planchers.
Le présent document est une spécification pour les isolants avant mise en oeuvre.
Le présent document décrit les caractéristiques du produit et comprend les procédures d'essai, d'évaluation de la conformité, de marquage et d'étiquetage.
Le présent document ne spécifie pas, pour une propriété donnée, le niveau exigé que doit atteindre un produit pour démontrer son aptitude a la fonction dans une application particuliere. Les niveaux requis pour une application donnée sont a trouver dans les réglementations ou dans des normes non contradictoires.
Le présent document ne couvre pas les isolants manufacturés préformés et panneaux en vermiculite exfoliée ni les produits formés en place destinés a l'isolation d'équipements de bâtiments et d'installations industrielles.
Le présent document ne spécifie pas d'exigences de performance pour les applications concernant l'isolation aux bruits aériens et l'absorption acoustique.
Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz razplastenega vermikulita (EV), oblikovani na mestu vgradnje - 1. del: Specifikacija za vezane in razsute proizvode pred vgradnjo
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Thermal insulation products for buildings - In-situ thermal insulation formed from exfoliated vermiculite (EV) products - Part 1: Specification for bonded and loose-fill products before installationToplotnoizolacijski proizvodi za stavbe - Proizvodi iz razplastenega vermikulita (EV), oblikovani na mestu vgradnje - 1. del: Specifikacija za vezane in razsute proizvode pred vgradnjoProduits isolants thermiques pour le bâtiment - Produits d'isolation thermique a base de vermiculite exfoliée formés en place - Partie 1: Spécifications relatives aux produits en vrac ou agglomérés avant mise en oeuvreWärmedämmstoffe für Gebäude - An der Verwendungsstelle hergestellte Wärmedämmung mit Produkten aus expandiertem Vermiculite (EV) - Teil 1: Spezifikation für gebundene und Schüttdämstoffe vor dem EinbauTa slovenski standard je istoveten z:EN 14317-1:2004SIST EN 14317-1:2005en91.100.60ICS:SLOVENSKI
STANDARDSIST EN 14317-1:200501-februar-2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14317-1August 2004ICS 91.100.60 English versionThermal insulation products for buildings - In-situ thermalinsulation formed from exfoliated vermiculite (EV) products - Part1: Specification for bonded and loose-fill products beforeinstallationProduits isolants thermiques pour le bâtiment - Isolationthermique formée en place à base de granulats légers devermiculite exfoliée (EV) - Partie 1: Spécification deproduits liés et en vrac avant mise en oevreWärmedämmstoffe für Gebäude - An derVerwendungsstelle hergestellte Wärmedämmung mitProdukten aus expandiertem Vermiculite (EV) - Teil 1:Spezifikation für gebundene und Schüttdämstoffe vor demEinbauThis European Standard was approved by CEN on 10 June 2004.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14317-1:2004: E
EN 14317-1:2004 (E) 2 Contents page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms, definitions, symbols, units and abbreviated terms.5 3.1 Terms and definitions.5 3.2 Symbols and abbreviations.6 4 Requirements.6 4.1 General.6 4.2 For all applications.6 4.3 For specific applications.8 5 Test methods.9 5.1 Sampling.9 5.2 Conditioning.9 5.3 Testing.9 6 Designation code.10 7 Evaluation of conformity.10 8 Marking and labelling.11 Annex A (normative)
Determination of the declared values of thermal conductivity.12 Annex B (normative)
Factory production control.14 Annex C (normative)
Preparation of the test specimens to measure thermal conductivity.15 Annex D (normative)
Special conditions to be used for the determination of organic content.16 Annex E (normative)
Determination of the water repellency of exfoliated vermiculite.17 Annex F (informative)
Example of the determination of the declared value of thermal conductivity for a product or product group.19 Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or other provisions of EU Directives.21 Bibliography.26
EN 14317-1:2004 (E) 3 Foreword This document (EN 14317-1:2004) 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 February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. 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 Directives. For relationship with EU Directive(s), see informative Annex ZA which is an integral part of this document. This standard consists of two parts. The first part, which is the harmonised part satisfying the mandate, the CPD and is the basis for the CE marking, covers the products, which are placed on the market. The second part, which is the non-harmonised part, covers the specification for the installed products. This European Standard is one of a series for mineral wool, expanded clay, expanded perlite, exfoliated vermiculite, polyurethane/polyisocyanurate, cellulose and urea formaldehyde in-situ formed insulation products used in buildings, but this standard may be used in other areas where appropriate. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 14317-1:2004 (E) 4 1 Scope This document specifies the requirements for the four types of exfoliated vermiculite products Vermiculite Aggregate (EVA), Coated Vermiculite (EVC), Hydrophobic Vermiculite (EVH) and Premixed Vermiculite (EVM), containing less than 1 % organic material as defined by Annex D for in-situ insulation of roofs, ceilings, walls and floors. This document is a specification for the insulation products before installation. This document describes the product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling. This document 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. This document does not cover factory made insulation products of formed shapes and boards made with exfoliated vermiculite or in-situ products intended to be used for the insulation of building equipment and industrial installations. This document does not specify performance requirements for airborne sound insulation and for acoustic absorption applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 932-1, Tests for general properties of aggregates — Part 1: Methods for sampling. EN 932-2, Tests for general properties of aggregates — Part 2: Methods for reducing laboratory samples. EN 933-1, Tests for geometrical properties of aggregates — Part 1: Determination of particle size distribution — Sieving method. EN 1097-3, Tests for mechanical and physical properties of aggregates — Part 3: Determination of loose bulk density and voids. EN 12667, Thermal performance of building materials and products — Determination of thermal resistance by means of guarded hot plate and heat flow meter methods — Products of high and medium thermal resistance. EN 13055-1, Lightweight aggregates — Lightweight aggregates for concrete, mortar and grout. EN 13055-2, Lightweight aggregates — Part 2: Lightweight aggregates for bituminous mixtures and surface treatments and for unbound and bound applications excluding concrete, mortar and grout. EN 13172:2001, Thermal insulating products — Evaluation of conformity. EN 13820, Thermal insulating materials for building applications — Determination of organic content.
EN 14317-1:2004 (E) 5 3 Terms, definitions, symbols, units and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 exfoliated vermiculite insulation material which results from expanding or exfoliating a natural micaceous mineral by heating [prEN ISO 9229:1997] 3.1.2 vermiculite aggregate exfoliated vermiculite with no treatment or surface coating, used either as a loose insulation in the cavities of walls and roofs and loose placement on ceilings, or for site mixing to specified mix proportions with bonding materials when applied as a surface layer 3.1.3 coated vermiculite exfoliated vermiculite which has a coating 3.1.4 hydrophobic vermiculite exfoliated vermiculite which is treated to give specific hydrophobic properties and used where moisture or water repellency is required 3.1.5 premixed vermiculite exfoliated vermiculite premixed with binders, which will require the site addition of water or other material, to enable the insulation product to be bonded, both to itself and the surface of the roof, ceiling, wall or floor 3.1.6 settlement decrease of installed insulation thickness with time, expressed as a percentage of the initial installed thickness (after compaction if prescribed) 3.1.7 level given value which is the upper or lower limit of requirement, where the level is given by the declared value of the characteristic concerned 3.1.8 class combination of two levels of the same property between which the performance shall fall, where the level is given by the declared value of the characteristic concerned 3.1.9 internal direct measurements measurements carried out by the manufacturer using the method detailed for a requirement 3.1.10 internal indirect measurements measurements carried out by the manufacturer using the manufacturer’s own test method
EN 14317-1:2004 (E) 6 3.1.11 external direct measurements measurements carried out by a third party using the method detailed for a requirement 3.2 Symbols and abbreviations Symbols and units used in this document: dN is the thickness of the product m K is the factor related to number of test results — λ is 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) λ90/90 is the 90 % fractile with a confidence level of 90 % for the thermal conductivity W/(m·K) λmean is the mean thermal conductivity W/(m·K) µ is the water vapour diffusion resistance factor — n is the number of test results — RD is the declared thermal resistance m2·K/W R90/90 is the 90 % fractile with a confidence level of 90 % for the thermal resistance m2·K/W sλ is the estimate of the standard deviation of the thermal conductivity W/(m·K)
CR is the symbol of the declared value for crushing resistance
LD is the symbol of the declared value for loose bulk density
PS is the symbol of the declared particle size
WR is the symbol for water repellency
Abbreviated terms used in this document: EVA is vermiculite aggregate as defined in 3.1.2 EVC is coated vermiculite as defined in 3.1.3 EVH is hydrophobic vermiculite as defined in 3.1.4 EVM is premixed vermiculite as defined in 3.1.5 ITT is initial type testing 4 Requirements 4.1 General Product properties shall be assessed in accordance with Clause 5. To comply with this document, 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 1. 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.
EN 14317-1:2004 (E) 7 The 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 ºC; the measured values shall be expressed with three significant figures; the declared thermal values shall be given as limit values representing at least 90 % of the production, determined with a confidence level of 90 %; the declared thermal resistance, RD, shall be calculated from the thickness, dN, and the corresponding declared thermal conductivity value, λD, where RD = dN/λ (see NOTE 3); the value of thermal conductivity, λ90/90, shall be rounded upwards to the nearest 0,001 W/(m·K) and declared as λD in levels with steps of 0,001 W/(m·K); the value of the declared thermal resistance, RD, shall be rounded downwards to the nearest 0,05 m2·K/W, and declared in levels with steps of 0,05 m2·K/W; An example of the determination of the declared value of thermal conductivity is given in the Annex F. NOTE 1 λ for exfoliated vermiculite is normally in the range 0,05 to 0,08 W/(m·K). NOTE 2 A correlation between thermal conductivity and any other property specific to the manufacturer’s product can be used for indirect testing. NOTE 3 The declaration of the installed thermal resistance is described in prEN 14317-2. 4.2.2 Loose bulk density Loose bulk density shall be determined in accordance with EN 1097-3. However the container should be filled using a flat bottomed scoop held centrally over the container without touching it, and be no more than 50 mm above the rim. The value shall be expressed as kg/m3 and declared by the manufacturer in steps of 1 kg/m3. The loose bulk density shall be in the range of ±15 % of the manufacturer’s declared value. NOTE Most exfoliated vermiculite products are in the range 50 kg/m3
to 180 kg/m3. 4.2.3 Particle size 4.2.3.1 Particle size distribution Particle size distribution shall be determined in accordance with EN 933-1 without washing and expressed as a percentage by mass, and shall be in accordance with the manufacturer’s declared limits. 4.2.3.2 Size designation The particle size shall be designated by two sieve sizes between which the main proportion of the material lies and any undersize or oversize shall comply with 4.2.3.3 and 4.2.3.4. The size in mm shall be selected from those specified in EN 13055-2. NOTE The particle size will normally be in the range 0 mm to 32 mm. 4.2.3.3 Undersize The content of the undersize shall not exceed 15 % by mass.
EN 14317-1:2004 (E) 8 4.2.3.4 Oversize The content of oversize shall not exceed 10 % by mass. 4.2.4 Reaction to fire This property is not measured since exfoliated vermiculite products described by this document are classified without testing as class A1 products. NOTE 1 The products are classified without testing as class A1 products in accordance with commission decision 96/603/EC as amended by decision 2000/605/EC.
NOTE 2 Products with an organic content greater than 1 % are outside the scope of this standard. 4.2.5 Durability characteristics 4.2.5.1 General The appropriate durability characteristics have been considered and are covered in 4.2.5.2, 4.2.5.3 and 4.2.5.4. 4.2.5.2 Durability of reaction to fire against ageing/degradation The fire performance of exfoliated vermiculite does not change with time (see 4.2.4).
4.2.5.3 Durability of thermal resistance against ageing/degradation The thermal conductivity (4.2.1) of the product does not change with time and neither does the insulation thickness since any settlement (4.3.5) is negligible.
4.2.5.4 Durability of compression strength against ageing/degradation The compressive strength of exfoliated vermiculite does not change with time. Exfoliated vermiculite is a stable laminar structure.
4.3 For specific applications 4.3.1 General If there is no requirement for a property described in 4.3 for a product in use, then the property does not need to be determined and declared by the manufacturer. 4.3.2 Water repellency The water repellence of EVH shall be determined in accordance with Annex E, and shall not be less than 175 ml. 4.3.3 Crushing resistance In load bearing applications the crushing resistance shall be determined in accordance with EN 13055-1 and expressed in N/mm2. NOTE Crushing resistance is a measure of the strength of the material but it does not necessarily relate directly to load bearing capacity.
EN 14317-1:2004 (E) 9 4.3.4 Water vapour transmission This property is not measured because the open structure of the final product itself offers no resistance to the free movement of water vapour. NOTE µ, for exfoliated vermiculite may be assumed to be 3. 4.3.5 Settlement Settlement for exfoliated vermiculite is negligible and needs no measurement. 4.3.6 Release of dangerous substances NOTE See Annex ZA. 5 Test methods 5.1 Sampling Sampling shall be carried out according to EN 932-1 and EN 932-2 using a procedure which gives a represen-tative sample and avoids sampling bias. 5.2 Conditioning No special conditioning of the sample shall be used unless otherwise specified in the test method standards. In case of dispute the test samples shall be conditioned to moisture equilibrium at (23 ± 5) ºC and (50 ± 10) % relative humidity after drying at (110 ± 5) ºC. 5.3 Testing 5.3.1 General Table 1 indicates the test procedure, the minimum number of measurements required to get one test result and any specific conditions which are necessary. Table 1 — Test methods, measurements and conditions Clause
No. Title Test method Minimum number of measurements to get one test result Specific conditions 4.2.1 Thermal conductivity EN 12667 1 See Annex C 4.2.2 Loose bulk density EN 1097-3 3 See 4.2.2 4.2.3 Particle size EN 933-1 1 See 4.2.3 4.2.4 Reaction to fire EN 13820 and AnnexD 1 None 4.3.2 Water repellency See Annex E 1 None 4.3.3 Crushing resistance EN 13055-1 1 None 5.3.2 Thermal conductivity Thermal conductivity shall be determined in accordance with EN 12667, under the following conditions: at a mean temperature of (10 ± 0,3) ºC; after preparation in accordance with the procedure given in Annex C;
EN 14317-1:2004 (E) 10 after conditioning in accordance with 5.2; the thickness of the test specimen shall be at least 10 times as thick as the mean aggregate size in the sample. Specimen thickness of 5 times the mean aggregate size is permitted if it can be shown that the required accuracy of testing is obtained. NOTE Thermal conductivity may also be measured at temperatures other than 10 ºC and then converted to a value at 10 ºC, providing that the accuracy of the relationship between temperature and thermal conductivity is sufficiently well documented. 6 Designation code A designation code for the product shall be given by the manufacturer. The following shall be included except when there is no requirement for a property described in 4.3: Product abbreviation This EN standard number — Loose bulk density Ldi — Particle size PS(x-y) — Water repellency (of hydrophobic products) Wri — Crushing resistance (in load bearing products) Cri where “i” shall be used to indicate the relevant class or level, and (x-y) indicates the upper and lower sieve size. The designation code for an exfoliated vermiculite product is illustrated by the following example: EVA EN 14317-1 — LD90 - PS(3-11) 7 Evaluation of conformity The manufacturer or their authorised representative shall be responsible for the conformity of the product with the requirements of this document. The evaluation of conformity shall be carried out in accordance with EN 13172 and shall be demonstrated by: initial type testing (ITT); factory production control by the manufacturer, and tests on samples taken at the factory. For initial type tests, samples shall be taken from four different production dates and combined together to form one representative sample for testing. If a manufacturer decides to group their products it shall be done in accordance with EN 13172. The minimum frequencies of tests in the factory production control shall be in accordance with Annex B of this standard. When indirect testing is used, the correlation to direct testing shall be established in accordance with EN 13172. NOTE 1 The system of attestation of conformity for the CE marking of the product is chosen in accordance with
Annex ZA of this document.
EN 14317-1:2004 (E) 11 The manufacturer or their authorised representative shall make available, in response to a request, a declaration of conformity. NOTE 2 For the EC declaration of conformity, see ZA.2.2. 8 Marking and labelling Products complying with this standard shall be clearly marked, either on the package or on the delivery note, with at least the following information: product name or other identifying characteristic; name or identifying mark and address of the manufacturer or their authorised representative; year of manufacture (last two digits); production date and manufacturing plant or traceability code; reaction to fire class A1; declared thermal conductivity; designation code as given in Clause 6; quantity of material (m3). NOTE For CE marking and labelling see ZA.3.
EN 14317-1:2004 (E) 12 Annex A
(normative)
Determination of the declared values of thermal conductivity A.1 Introduction It is the responsibility of the manufacturer to determine the declared values of thermal conductivity, and to demonstrate conformity of the product to its declared values. The declared values of thermal conductivity of a product are the expected values of these properties during an economically reasonable working life under normal conditions, assessed through measured data at reference conditions. A.2 Input data A.2.1
The manufacturer shall have at least ten test results for thermal conductivity, obtained from internal or external measurements in order to calculate the declared value. A.2.2
Out of the ten test results the manufacturer shall have at least three test results for thermal conductivity, obtained from internal or external direct measurements. The direct thermal conductivity measurements shall be carried out at regular intervals spread over a time period of the last twelve months. If less than three results are available, the time period may be extended, until three test results are reached, but with a maximum of three years within which the product and the production conditions have not changed significantly. A.2.3
If the manufacturer has established a correlation according to A.4 and the direct tests comply with the correlation, the direct test results may be supplemented by indirect test results from the same period. A weighting factor giving the direct test results ten times the value of the indirect test results shall be used as shown in Annex F. A.2.4
For new products a minimum of three direct thermal conductivity test results shall be carried out spread over a minimum period of ten days. If these test results comply with an already established correlation, the direct test results may be supplemented by indirect test results from the same period. The declared values shall be calculated according to the method given in A.3 and shall be recalculated at intervals not exceeding twelve months of production using at least one additional new direct result, and acceptable indirect test results. For the purpose of this declaration, thermal conductivity test results from different production units may be considered as one product group as defined in EN 13172, provided that the same raw material is used, and production conditions are similar. A.3 Declared values The derivation of the declared values, RD and λD, from the calculated values, R90/90 and λ90/90, shall use the rules given in 4.2.1 which include the rounding conditions.
EN 14317-1:2004 (E) 13 The declared values, RD and λD, shall be derived from the calculated values, R90/90 and λ90/90, which are determined using the equations A.1 and A.2. λλλskmean/⋅+=9090 (A.1) ()112−−=∑=nsnimeaniλλλ (A.2) Table A.1 — Values of k for one sided 90 % tolerance interval with a confidence level of 90 % Number of test results K 3 4,26 5 2,74 7 2,33 10 2,07 15 1,87 20 1,77 50 1,56 100 1,47 300 1,39 500 1,36 2 000 1,32 ∞ 1,28 NOTE Linear interpolation is acceptable. A.4 Acceptable indirect test results of thermal conductivity Indirect test results can be accepted if the manufacturer can demonstrate a correlation between the direct measured λ, and one or more other properties, where the following conditions shall all be fulfilled: The correlation shall be based on test results from a period within which the product and the production conditions are within their specific parameters. The correlation shall be based on testing a minimum of ten samples. The correlation shall be established by regression analysis with a regression coefficient better than 0,9. The correlation shall be updated at least once a year by adding at least one new set of test results. If the raw material or expansion system change outside their specific parameters a new correlation shall be established.
EN 14317-1:2004 (E) 14 Annex B
(normative)
Factory production control Table B.1 — Minimum product testing frequencies Clause Minimum testing frequency a Indirect testing No. Title Direct testing Test method Frequency 4.2.1 Thermal conductivity 1 per year Manufacturer’s method 1 per week 4.2.2 Loose bulk density 1 per month Manufacturer’s method 1 per day 4.2.3 Particle size 1 per month — — 4.3.2 Water repellency b 1 per month — — 4.3.6 Dangerous substances
C — — a The minimum testing frequencies, shall be understood as the minimum for each production unit. In addition to the testing frequencies given above, testing of relevant properties of the product shall be repeated when changes or modifications are made that are likely to affect the conformity of the product. b Hydrophobic materials only. c Frequencies are not given, as test methods are not yet available (see Annex ZA).
EN 14317-1:2004 (E) 15 Annex C
(normative)
Preparation of the test specimens to measure thermal conductivity C.1 General The general conditions of EN 12667 shall be complied with, but in addition the following requirements shall be taken into account when conditioning and preparing specimens for thermal conductivity testing. C.2 Products EVA, EVC and EVH used as loose fill insulation Dry the specimen at (110 ± 5) °C and then condition at (23 ± 5) °C and (50 ± 10) % RH. Repeat until constant weight is obtained. Transfer the specimen to the apparatus and commence the test without undue delay to avoid moisture uptake. Test the specimen without compaction of the loose-fill material and do not vibrate, pack or tamp the material. It is normal for the thermal conductivity test on exfoliated vermiculite to take several days to reach equilibrium. Treat with caution any apparent stability after only a few hours. State in the test repo
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