SIST EN 16245-5:2013

Fibre-reinforced plastic composites - Declaration of raw material characteristics - Part 5: Specific requirements for core materials

This 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 document includes requirements for the Certificate of Analysis (CoA). The purpose of the CoA is to verify that material properties and quality conforms to the declared values.
This part of the standard is applicable to rigid foam and balsa core material.

Faserverstärkte Verbundwerkstoffe - Angabe von Werkstoffeigenschaften - Teil 5: Spezifische Anforderungen an den Kernwerkstoff

Diese Europäische Norm legt die Mindestangaben für Kernwerkstoffe fest, die zur Herstellung von Produkten aus Verbundwerkstoffen verwendet werden.
Diese spezifischen Anforderungen an die Deklaration ergänzen die in EN 16245 1 angegebenen allgemeinen Anforderungen.
Dieses Dokument enthält Anforderungen an das Analysenzertifikat (CoA). Zweck des CoA ist es zu verifizieren, dass die Werkstoffeigenschaften den angegebenen Werten entsprechen.
Dieser Teil der Norm gilt für Hartschaum  und Balsaholz Kernwerkstoffe.

Composites plastiques renforcés de fibres - Déclaration des caractéristiques des matières premières - Partie 5: Exigences particulières pour les matériaux d'âme

La présente Norme Européenne spécifie les informations minimales devant être déclarées pour les matériaux d'âme destinés à être utilisés pour la fabrication de produits en composites.
Ces exigences particulières de déclaration viennent en complément des exigences générales données dans l’EN 16245 1.
Le présent document contient les exigences relatives au certificat d'analyse (CA). Le CA a pour but de confirmer que les propriétés des matériaux sont conformes aux valeurs déclarées.
La présente partie de la norme est applicable aux matériaux d'âme de type mousse rigide et balsa.

Z vlakni ojačeni kompozitni polimerni materiali - Navajanje karakteristik surovin - 5. del: Posebne zahteve za osrednji material

Ta evropski standard podaja minimalne informacije, ki morajo biti navedene za osrednje materiale, ki se uporabljajo za izdelavo kompozitnih izdelkov. Te posebne zahteve za navajanje so dodatek splošnim zahtevam iz standarda EN 16245-1. Ta dokument vključuje zahteve za potrdilo o analizi (CoA). Namen potrdila o analizi je overitev, da so lastnosti materialov skladne z deklariranimi vrednostmi. Ta del standarda se uporablja za trdno peno in osrednji material iz balse.

General Information

• Status: Published
• Public Enquiry End Date: 24-Sep-2011
• Publication Date: 03-Jun-2013
• ICS: 83.120 - Reinforced plastics
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Jun-2013
• Due Date: 08-Aug-2013
• Completion Date: 04-Jun-2013
• Ref Project: EN 16245-5:2013 - Fibre-reinforced plastic composites - Declaration of raw material characteristics - Part 5: Specific requirements for core materials

Overview

SIST EN 16245-5:2013 is a European standard developed by CEN that specifies the declaration requirements for raw material characteristics of core materials used in the manufacturing of fibre-reinforced plastic (FRP) composites. This part 5 of the EN 16245 series focuses specifically on core materials, including rigid foam and balsa core materials. It builds upon the general requirements outlined in EN 16245-1 and introduces specialized provisions for core materials, ensuring consistent and reliable material data for composite product manufacturers.

The standard plays a critical role in the composites industry by defining the minimum information suppliers must provide about their core materials, along with the format for a Certificate of Analysis (CoA), which verifies that material properties meet declared specifications.

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Key Topics

• Scope of Core Material Declarations
  EN 16245-5 applies to rigid foam and balsa core materials used centrally in sandwich constructions. The standard mandates comprehensive property declarations including mechanical, physical, and thermal parameters.

• Core Material Properties to Declare

  • Identification codes or names
  • Density (nominal, guaranteed minimum and maximum)
  • Shear strength, shear modulus, and shear elongation at temperatures ranging from -20 °C to +80 °C
  • Compression strength and modulus (out of plane)
  • Tensile strength and modulus (out of plane)
  • Thickness and in-plane dimensions (with tolerances)
  • Thermal conductivity across key temperatures
  • Maximum continuous operating temperature and heat resistance
  • Maximum processing temperature guidelines
  • Core treatment information such as coatings, impregnation, or assembly methods
  • Marking requirements for batch and product identification

• Certificate of Analysis (CoA)
  The CoA is a vital document verifying that the core material delivered meets or exceeds the declared values. It must conform to EN 16245-1 clauses and reflect results according to the prescribed test methods, accounting for variations like temperature conditioning and density.

• Test Standards Referenced
  The standard refers to multiple normative references to ensure consistency, including EN ISO 291 (conditioning), EN ISO 844 (compression properties), EN ISO 845 (density), ASTM D1623 (tensile), and ISO 1922 (shear strength).

• Testing and Measurement Procedures
  Detailed instructions on sample conditioning, testing environments, and fixture acclimation are provided to foster reproducibility. Tests must be carried out according to the relevant standards, with precise tolerances, use of extensiometers where needed, and strict temperature control.

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Practical Applications

SIST EN 16245-5:2013 benefits manufacturers, suppliers, and quality assurance teams within the composites industry by:

• Ensuring Quality Consistency
  Declaration of raw materials against standardized properties helps assure that core materials meet structural and thermal performance requirements critical in aerospace, automotive, marine, and construction applications.

• Facilitating Supplier-Customer Communication
  By defining mandatory reporting parameters, it reduces ambiguities during material procurement and optimizes collaboration between composite product makers and raw material suppliers.

• Supporting Regulatory Compliance and Product Certification
  Using well-defined and tested material data supports product certification efforts, safety evaluations, and compliance with broader quality management systems.

• Enabling Better Material Selection
  Detailed material characteristics enable engineers to select appropriate core materials for specific load conditions, environmental exposure, and fabrication cycles.

• Reducing Risks in Composite Manufacturing
  Knowledge of maximum processing temperatures and heat resistance helps manufacturers avoid defects during curing and ensures longevity of composite parts.

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Related Standards

• EN 16245-1:2013 - General requirements for declaration of raw material characteristics in fibre-reinforced plastic composites.
• EN 16245-2 to 4 - Specific requirements for resin, curing systems, additives, fibres, and fabrics used in composites.
• EN ISO 291 - Plastics standard atmospheres for conditioning and testing.
• EN ISO 844 - Testing of compression properties of rigid cellular plastics.
• ISO 1922 - Determination of shear strength of rigid cellular plastics.
• ASTM D1623 - Standard test method for tensile properties of rigid cellular plastics.
• ASTM C273, C297, C365 - Various test methods for sandwich core materials.

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Keywords: EN 16245-5, fibre-reinforced plastic composites, core materials, declaration of raw material characteristics, certificate of analysis, rigid foam core, balsa core, composite manufacturing, material properties, core material testing, composite sandwich construction, CEN standards, quality assurance in composites.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Faserverstärkte Verbundwerkstoffe - Angabe von Werkstoffeigenschaften - Teil 5: Spezifische Anforderungen an den KernwerkstoffComposites plastiques renforcés de fibres - Déclaration des caractéristiques des matières premières - Partie 5: Exigences particulières pour les matériaux d'âmeFibre-reinforced plastic composites - Declaration of raw material characteristics - Part 5: Specific requirements for core materials83.120Reinforced plasticsICS:Ta slovenski standard je istoveten z:EN 16245-5:2013SIST EN 16245-5:2013en,fr,de01-julij-2013SIST EN 16245-5:2013SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16245-5
May 2013 ICS 83.120 English Version
Fibre-reinforced plastic composites - Declaration of raw materialcharacteristics - Part 5: Specific requirements for core materials Composites plastiques renforcés de fibres - Déclaration des caractéristiques des matières premières - Partie 5: Exigences particulières pour les matériaux d'âme
Faserverstärkte Verbundwerkstoffe - Angabe von Werkstoffeigenschaften - Teil 5: Spezifische Anforderungen 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 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 © 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: ESIST EN 16245-5:2013

 Part 3: Specific requirements for fibre  Part 4: Specific requirements for fabrics
 Part 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 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 16245-5:2013

1 Scope This 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 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 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 16245-1:2013, Fibre-reinforced plastic composites — Declaration of raw material characteristics — Part 1: General requirements EN 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 apparent density (ISO 845) ISO 1922, Rigid cellular plastics — Determination of shear strength ISO 8301, Thermal insulation — Determination of steady-state thermal resistance and related properties — Heat flow meter apparatus ASTM C273, Standard Test Method for Shear Properties of Sandwich Core Materials ASTM C297, Standard Test Method for Flatwise Tensile Strength of Sandwich Constructions ASTM C365, Standard Test Method for Flatwise Compressive Properties of Sandwich Cores ASTM D1623, Standard Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular Plastics 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 core material central component of a sandwich construction to which the sandwich faces or skins are attached 3.2 balsa core material rigid balsa sheets cut in end-grain configuration to assure good compressive properties normal to the plane SIST EN 16245-5:2013

[SOURCE: EN 16245-1:2013, 3.2] 4 Content of a declaration A 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 requirements 5.1 General The 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 manufacturer/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 test 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 required for the declaration; SIST EN 16245-5:2013

 the material and fixture shall be acclimated at the test temperature for 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 specimen shall not deviate by more than ± 2 °C from the given test temperature. 5.2 Properties of foam core material The 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 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 of application: 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 [
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