BS-EN-ISO-1873-2-2007.pdf

BRITISH STANDARD BS EN ISO 1873-2:2007 Plastics Polypropylene (PP) moulding and extrusion materials Part 2: Preparation of test specimens and determination of properties The European Standard EN ISO 1873-2:2007 has the status of a British Standard ICS 83.080.20 ? Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 1873-2:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2007 © BSI 2007 ISBN 978 0 580 57251 7 National foreword This British Standard is the UK implementation of EN ISO 1873-2:2007. It supersedes BS EN ISO 1873-2:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/82, Thermoplastic materials. 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 responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 1873-2 September 2007 ICS 83.080.20Supersedes EN ISO 1873-2:1997 English Version Plastics - Polypropylene (PP) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 1873-2:2007) Plastiques - Polypropylène (PP) pour moulage et extrusion - Partie 2: Préparation des éprouvettes et détermination des propriétés (ISO 1873-2:2007) Kunststoffe - Polypropylen (PP)-Formmassen - Teil 2: Herstellung von Probekörpern und Bestimmung von Eigenschaften (ISO 1873-2:2007) This European Standard was approved by CEN on 27 August 2007. 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 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2007 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1873-2:2007: E Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword This document (EN ISO 1873-2:2007) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with 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 March 2008, and conflicting national standards shall be withdrawn at the latest by March 2008. This document supersedes EN ISO 1873-2:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1873-2:2007 has been approved by CEN as a EN ISO 1873-2:2007 without any modification. EN ISO 1873-2:2007 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference number ISO 1873-2:2007(E) INTERNATIONAL STANDARD ISO 1873-2 Third edition 2007-09-01 Plastics Polypropylene (PP) moulding and extrusion materials Part 2: Preparation of test specimens and determination of properties Plastiques Polypropylène (PP) pour moulage et extrusion Partie 2: Préparation des éprouvettes et détermination des propriétés EN ISO 1873-2:2007 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1873-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. This third edition cancels and replaces the second edition (ISO 1873-2:1997), which has been technically revised. It also incorporates the Amendment ISO 1873-2:1997/Amd.1:2000. ISO 1873 consists of the following parts, under the general title Plastics Polypropylene (PP) moulding and extrusion materials: Part 1: Designation system and basis for specifications Part 2: Preparation of test specimens and determination of properties EN ISO 1873-2:2007 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI blank Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1 Plastics Polypropylene (PP) moulding and extrusion materials Part 2: Preparation of test specimens and determination of properties 1 Scope This part of ISO 1873 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of PP moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given. Procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize PP moulding and extrusion materials are listed. The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for, or of particular significance to, these moulding and extrusion materials are also included in this part of ISO 1873, as are the designatory properties specified in Part 1. In order to obtain reproducible and comparable test results, it is necessary to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures. 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. ISO 62, Plastics Determination of water absorption ISO 75-2, Plastics Determination of temperature of deflection under load Part 2: Plastics and ebonite ISO 178, Plastics Determination of flexural properties ISO 179-1, Plastics Determination of Charpy impact properties Part 1: Non-instrumented impact test ISO 179-2, Plastics Determination of Charpy impact properties Part 2: Instrumented impact test ISO 293, Plastics Compression moulding of test specimens of thermoplastic materials ISO 294-1, Plastics Injection moulding of test specimens of thermoplastic materials Part 1: General principles, and moulding of multipurpose and bar test specimens ISO 294-3, Plastics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates EN ISO 1873-2:2007 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 2 ISO 294-4, Plastics Injection moulding of test specimens of thermoplastic materials Part 4: Determination of moulding shrinkage ISO 527-2, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics ISO 899-1, Plastics Determination of creep behaviour Part 1: Tensile creep ISO 1133:2005, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method ISO 1183-2, Plastics Methods for determining the density of non-cellular plastics Part 2: Density gradient column method ISO 1183-3, Plastics Methods for determining the density of non-cellular plastics Part 3: Gas pyknometer method ISO 1628-3, Plastics Determination of the viscosity of polymers in dilute solution using capillary viscometers Part 3: Polyethylenes and polypropylenes ISO 2818, Plastics Preparation of test specimens by machining ISO 3167, Plastics Multipurpose test specimens ISO 4589-2, Plastics Determination of burning behaviour by oxygen index Part 2: Ambient-temperature test ISO 6603-2, Plastics Determination of puncture impact behaviour of rigid plastics Part 2: Instrumented impact testing ISO 8256, Plastics Determination of tensile-impact strength ISO 10350-1, Plastics Acquisition and presentation of comparable single-point data Part 1: Moulding materials ISO 11357-2, Plastics Differential scanning calorimetry (DSC) Part 2: Determination of glass transition temperature ISO 11357-3, Plastics Differential scanning calorimetry (DSC) Part 3: Determination of temperature and enthalpy of melting and crystallization ISO 11359-2, Plastics Thermomechanical analysis (TMA) Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature ISO 16152, Plastics Determination of xylene-soluble matter in polypropylene IEC 60093, Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials IEC 60112, Method for the determination of the proof and the comparative tracking indices of solid insulating materials IEC 60243-1, Electrical strength of insulating materials Test methods Part 1: Tests at power frequencies IEC 60250, Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths EN ISO 1873-2:2007 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:51:36 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3 IEC 60296, Fluids for electrotechnical applications Unused mineral insulating oils for transformers and switchgear IEC 60695-11-10, Fire hazard testing Part 11-10: Test flames 50 W horizontal and vertical flame test methods ASTM D 5420, Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimen by Means of a Striker Impacted by a falling Weight (Gardner Impact) 3 Preparation of test specimens 3.1 General It is essential that specimens are always prepared by the same procedure (either injection moulding or compression moulding), using the same processing conditions. The procedure to be used for each test method is indicated in Tables 3 and 4 (M = injection moulding, Q = compression moulding). 3.2 Treatment of the material before moulding Before processing, no pre-treatment of the material sample is normally necessary. 3.3 Injection moulding Injection-moulded specimens shall be prepared in accordance with ISO 294-1 or ISO 294-3, using the conditions specified in Table 1. Work which has been carried out indicates that rectangular bar test specimens machined from the central part of ISO 3167 type A specimens give better precision than specimens injection- moulded directly to their final dimensions from ISO 294-1 type B moulds, and so the use of type A geometry is preferable. NOTE Details of the work can be found at the following URL: http:/standards.iso.org/iso/1873/-2 An appropriate hold pressure, consistent with the production of blemish-free mouldings, shall be used. Table 1 Conditions for injection moulding of test specimens Material Melt temperature Mould temperature Average injection velocity Hold pressure time Total cycle time °C °C mm/s s s MFR 1,5 times the original value shall be avoided with such materials. If the MFR increases by more than 1,5 times the original value, the melt temperature shall be lowered, 10 °C at a time, until the increase in MFR is 10 %: test speed 50 mm/min. 2.8 Etc1 At 1 h 2.9 Tensile creep modulus Etc103 ISO 899-1 ISO 3167 MPa At 1 000 h Strain u 0,5 %. 2.10 Flexural modulus Ef ISO 178 80 × 10 × 4 MPa Test speed 2 mm/min. 2.11 Charpy impact strength ac 80 ×