1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFibre-reinforced plastic composites Declaration of raw material characteristicsPart 5: Specific requirements for core materialsBS EN 16245-5:2013BS EN 16245-5:2013BS EN 16245-5:2
2、013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16245-5:2013.The UK national committee is of the opinion that in all parts of EN 16245 the use of the terms “guaranteed minimum value” and “guaranteed maximum value” is not appropriate within a voluntary based
3、standard. Furthermore, the absolute “minimum value” and “maximum value” cannot be determined practicably, so that “statistical minimum value” (defined in EN 16245-1) and “statistical maximum value” (calculated in a similar manner using maximal values) are preferred.The UK participation in its prepar
4、ation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are
5、 responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 74086 2ICS 83.120Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Sta
6、ndards Policy and Strategy Committee on 30 June 2013.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16245-5 May 2013 ICS 83.120 English Version Fibre-reinforced plastic composites - Declaration of raw materialcharacteristics - Par
7、t 5: Specific requirements for core materialsComposites plastiques renforcs de fibres - Dclaration des caractristiques des matires premires - Partie 5: Exigences particulires pour les matriaux dme Faserverstrkte Verbundwerkstoffe - Angabe von Werkstoffeigenschaften - Teil 5: Spezifische Anforderunge
8、n an den Kernwerkstoff This European Standard was approved by CEN on 21 March 2013. 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 an
9、d 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
10、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 Yugosla
11、v 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 COMIT EUROPEN DE
12、 NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16245-5:2013: EBS EN 16245-5:2013EN 16245-5:2013 (E)2Contents PageForeword3 1 S
13、cope 4 2 Normative references 4 3 Terms and definitions .4 4 Content of a declaration5 5 Specific declaration requirements.5 5.1 General5 5.2 Properties of foam core material6 5.3 Properties of balsa core material.9 Bibliography . 12 BS EN 16245-5:2013EN 16245-5:2013 (E)2Contents PageForeword3 1 Sco
14、pe 4 2 Normative references 4 3 Terms and definitions .4 4 Content of a declaration5 5 Specific declaration requirements.5 5.1 General5 5.2 Properties of foam core material6 5.3 Properties of balsa core material.9 Bibliography . 12 BS EN 16245-5:2013EN 16245-5:2013 (E)3ForewordThis document (EN 1624
15、5-5:2013) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN.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 November 2013, and conflicting nat
16、ional standards shall be withdrawn at the latest by November 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.EN 16245 consists of
17、the following parts, under the general title Fibre-reinforced plastic composites Declaration of raw material characteristics:Part 1: General requirementsPart 2: Specific requirements for resin, curing systems, additives and modifiersPart 3: Specific requirements for fibrePart 4: Specific requirement
18、s for fabricsPart 5: Specific requirements for core materials (the present document)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 Rep
19、ublic, 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.BS E
20、N 16245-5:2013EN 16245-5:2013 (E)41 ScopeThis European Standard specifies the minimum information to be declared for core materials to be used for the manufacturing of composites products.These specific declaration requirements are in addition to the general requirements given EN 16245-1.This docume
21、nt includes requirements for the Certificate of Analysis (CoA). The purpose of the CoA is to verify that material properties conform to the declared values.This part of the standard is applicable to rigid foam and balsa core material.2 Normative referencesThe following documents, in whole or in part
22、, 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 16245-1:2013, Fibre-reinforced plastic composites
23、 Declaration of raw material characteristics Part 1:General requirementsEN ISO 291, Plastics Standard atmospheres for conditioning and testing (ISO 291)EN ISO 844, Rigid cellular plastics Determination of compression properties (ISO 844)EN ISO 845, Cellular plastics and rubbers Determination of appa
24、rent density (ISO 845)ISO 1922, Rigid cellular plastics Determination of shear strengthISO 8301, Thermal insulation Determination of steady-state thermal resistance and related properties Heat flow meter apparatusASTM C273, Standard Test Method for Shear Properties of Sandwich Core MaterialsASTM C29
25、7, Standard Test Method for Flatwise Tensile Strength of Sandwich ConstructionsASTM C365, Standard Test Method for Flatwise Compressive Properties of Sandwich CoresASTM D1623, Standard Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular Plastics3 Terms and definitionsFor the pu
26、rposes of this document, the following terms and definitions apply.3.1core materialcentral component of a sandwich construction to which the sandwich faces or skins are attached3.2balsa core materialrigid balsa sheets cut in end-grain configuration to assure good compressive properties normal to the
27、 planeBS EN 16245-5:2013EN 16245-5:2013 (E)41 ScopeThis European Standard specifies the minimum information to be declared for core materials to be used for the manufacturing of composites products.These specific declaration requirements are in addition to the general requirements given EN 16245-1.T
28、his document includes requirements for the Certificate of Analysis (CoA). The purpose of the CoA is to verify that material properties conform to the declared values.This part of the standard is applicable to rigid foam and balsa core material.2 Normative referencesThe following documents, in whole
29、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 16245-1:2013, Fibre-reinforced plastic
30、composites Declaration of raw material characteristics Part 1:General requirementsEN ISO 291, Plastics Standard atmospheres for conditioning and testing (ISO 291)EN ISO 844, Rigid cellular plastics Determination of compression properties (ISO 844)EN ISO 845, Cellular plastics and rubbers Determinati
31、on of apparent density (ISO 845)ISO 1922, Rigid cellular plastics Determination of shear strengthISO 8301, Thermal insulation Determination of steady-state thermal resistance and related properties Heat flow meter apparatusASTM C273, Standard Test Method for Shear Properties of Sandwich Core Materia
32、lsASTM C297, Standard Test Method for Flatwise Tensile Strength of Sandwich ConstructionsASTM C365, Standard Test Method for Flatwise Compressive Properties of Sandwich CoresASTM D1623, Standard Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular Plastics3 Terms and definitions
33、For the purposes of this document, the following terms and definitions apply.3.1core materialcentral component of a sandwich construction to which the sandwich faces or skins are attached3.2balsa core materialrigid balsa sheets cut in end-grain configuration to assure good compressive properties nor
34、mal to the planeBS EN 16245-5:2013EN 16245-5:2013 (E)53.3foam core materialvarious different polymer materials that are foamed in order to reduce their specific weight3.4nominal valuesupplier defined value, typically defined by the mean value derived from a historical database of the respective prop
35、ertySOURCE: EN 16245-1:2013, 3.63.5statistical minimum valuemean value minus two standard deviations of a historical population, i.e. there is 97,6 % probability that the test values are above this statistically defined minimum valueNote 1 to entry: This implies that all or part of the received mate
36、rial can have CoA values below the statisticalminimum value declared by the manufacturer. In order to avoid this, the customer can instead require guaranteed minimum value to be declared.SOURCE: EN 16245-1:2013, 3.83.6guaranteed minimum or maximum valuevalue guaranteed by the supplier, such as no si
37、ngle sample value is below or above the declared values, respectivelySOURCE: EN 16245-1:2013, 3.24 Content of a declarationA declaration for the core material shall consist of information according to EN 16245-1:2013, Clause 5 and Clause 5 of this standard.5 Specific declaration requirements5.1 Gene
38、ralThe specific requirements for core materials are given below. All declaration requirements, i.e. the general information according to EN 16245-1 and the specific declaration requirements according to this part (i.e. EN 16245-5), and application dependant requirements as agreed between manufacture
39、r/supplier and customer, shall be declared by the supplier as information to the customer. The following also apply: if the property given has reference to a test method standard or test method, this test method standard or test method shall be used;the values given shall be in accordance with the t
40、est method standard given;if the test environment is not clearly stated in the specific test method standard, the standard atmosphere conditioning and testing shall be carried out in accordance with EN ISO 291;the manufacturer shall be responsible for the performance and results of all tests require
41、d for the declaration;BS EN 16245-5:2013EN 16245-5:2013 (E)6the material property declaration shall account for any density variation. Tolerances and nominal values shall be given considering the range of density specified in 5.2;the material and fixture shall be acclimated at the test temperature f
42、or a period sufficient to ensure even temperature throughout the specimen and fixture. If the test method standard does not specifically mention how the test at elevated/decreased temperature shall be performed, the test shall be performed in a temperature-controlled chamber. The temperature in the
43、specimen shall not deviate by more than 2 C from the given test temperature.5.2 Properties of foam core materialThe specific declaration requirements for core material are listed below. The declaration including tolerances shall be given in accordance with the test method standards stated in Table 1
44、 and Table 2.If the core sheets consist of different core blocks bonded together in order to obtain required thickness/size, the given declaration shall be valid for the assembled core sheet.The following specific declaration requirements a) to q) apply for all foam core material independent ofappli
45、cation:a) identification (name/number/code used by the manufacturer for identification purposes);b) density kg/m3 nominal, guaranteed minimum and guaranteed maximum value;c) shear strength MPa nominal and statistical minimum value:1) Nominal values shall also be given for test temperatures -20 C and
46、 +80 C.d) shear modulus MPa nominal and statistical minimum value:1) Nominal values shall also be given for test temperatures -20 C and +80 C.e) shear elongation (ultimate) % nominal and statistical minimum value:1) Obtained based on stress-strain curves.2) Nominal values shall also be given for tes
47、t temperatures -20 C and +80 C.f) compression strength (out of plane) MPa nominal and statistical minimum value:1) Nominal values shall also be given for test temperatures -20 C and +80 C.g) compression modulus (out of plane) MPa nominal and statistical minimum value:1) Nominal values shall also be
48、given for test temperatures -20 C and +80 C.h) tensile strength (out of plane) MPa nominal and statistical minimum value:1) Nominal values shall also be given for test temperatures -20 C and +80 C.i) tensile modulus (out of plane) MPa nominal and statistical minimum value:1) Nominal values shall als
49、o be given for test temperatures -20 C and +80 C.j) thickness mm:1) The thickness is defined as the nominal thickness of the sheet.BS EN 16245-5:2013EN 16245-5:2013 (E)6the material property declaration shall account for any density variation. Tolerances and nominal values shall be given considering the range of density specified in 5.2;the material and fixture shall be acclimated at the test temperature for a period sufficient to ensure even temperature throughout the s
