1、 DEUTSCHE NORM June 2006DIN EN ISO 14663-2 ICS 83.080.20 Plastics Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials Part 2: Preparation of test specimens and determination of properties (ISO 14663-2:1999) English version of DIN EN ISO 14663-2:2006-06 Kunststoffe Ethylen-Vinyla
2、lkohol (EVOH)-Copolymer-Formmassen Teil 2: Herstellung von Probekrpern und Bestimmung von Eigenschaften (ISO 14663-2:1999) Englische Fassung DIN EN ISO 14663-2:2006-06 Document comprises 20 pages No part of this standard may be reproduced without prior permission of DIN Deutsches Institut fr Normung
3、 e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 12 www.din.de www.beuth.de !,o9J“11.06 9762239DIN EN ISO 14663-2:2006-06 2 National foreword This standard has been published in accordance with a decision
4、 taken by CEN/TC 249 to adopt, without alteration, International Standard ISO 14663-2 as a European Standard. The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Technical Committee NA 054-02-08 AA Sonstige Thermoplast-Formmasse
5、n. Most of the International Standards listed in clause 2 have been revised since the publication of ISO 14663-2 in 1999 and have been adopted as European Standards. For each standard cited, users should check whether a more current edition can be used without restrictions. EUROPEAN STANDARD NORME E
6、UROPENNE EUROPISCHE NORM EN ISO 14663-2 April 2006 ICS 83.080.20 English Version Plastics - Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 14663-2:1999) Plastiques - Matriaux base de copolymres thy
7、lne/alcool vinylique (EVOH) pour moulage et extrusion - Partie 2: Prparation des prouvettes et dtermination des proprits (ISO 14663-2:1999) Kunststoffe - Ethylen-Vinylalkohol (EVOH)-Copolymer-Formmassen - Teil 2: Herstellung von Probekrpern und Bestimmung von Eigenschaften (ISO 14663-2:1999) This Eu
8、ropean Standard was approved by CEN on 16 March 2006. 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 c
9、oncerning such national standards 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 translation under the responsibility of a CEN member into its
10、own language and notified to the Central Secretariat has the same status as the official versions. 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, Luxem
11、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rig
12、hts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14663-2:2006: EEN ISO 14663-2:2006 (E) 2 Foreword The text of ISO 14663-2:1999 has been prepared by Technical Committee ISO/TC 61 “Plastics” of the International Organization for Standardiza
13、tion (ISO) and has been taken over as EN ISO 14663-2:2006 by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by IBN. 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 Oct
14、ober 2006, and conflicting national standards shall be withdrawn at the latest by October 2006. 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,
15、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. Endorsement notice The text of ISO 14663-2:1999 has been appr
16、oved by CEN as EN ISO 14663-2:2006 without any modifications. 1 ScopeThis part of ISO 14663 specifies the methods of preparation of test specimens and the test methods to be used indetermining the properties of EVOH moulding and extrusion materials. Requirements for handling test material andfor con
17、ditioning both the test material before moulding and the specimens before testing are given here.Procedures and conditions are described for the preparation of test specimens, and procedures for measuringproperties of the materials from which these specimens are made are given. Properties and test m
18、ethods which aresuitable and necessary to characterize EVOH moulding and extrusion materials are listed.The properties have been selected from the general test methods in ISO 10350. Other test methods in wide use foror of particular significance to these moulding and extrusion materials are also inc
19、luded in this part of ISO 14663, asis the designatory property specified in part 1: melt mass-flow rate.In order to obtain reproducible and comparable test results, it is necessary to use the methods of specimenpreparation and conditioning, the specimen dimensions and the test procedures specified h
20、erein. Valuesdetermined will not necessarily be identical to those obtained using specimens of different dimensions or preparedusing different procedures.2 Normative referencesThe following standards contain provisions which, through reference in this text, constitute provisions of this part ofISO 1
21、4663. At the time of publication, the editions indicated were valid. All standards are subject to revision, andparties to agreements based on this part of ISO 14663 are encouraged to investigate the possibility of applying themost recent editions of the standards indicated below. Members of IEC and
22、ISO maintain registers of currently validInternational Standards.ISO 75-1:1993, Plastics Determination of temperature of deflection under load Part 1: General test method.ISO 75-2:1993, Plastics Determination of temperature of deflection under load Part 2: Plastics and ebonite.ISO 178:1993, Plastics
23、 Determination of flexural properties.EN ISO 14663-2:2006 (E) 3 ISO 179-1:1), Plastics Determination of Charpy impact properties Part 1: Non-instrumented impact test.ISO 180:2), Plastics Determination of Izod impact strength.ISO 291:1997, Plastics Standard atmospheres for conditioning and testing.IS
24、O 294-2:1996, Plastics Injection moulding of test specimens of thermoplastic materials Part 2: Small tensilebars.ISO 306:1994, Plastics Thermoplastic materials Determination of Vicat softening temperature (VST).ISO 527-1:1993, Plastics Determination of tensile properties Part 1: General principles.I
25、SO 527-2:1993, Plastics Determination of tensile properties Part 2: Test conditions for moulding andextrusion plastics.ISO 899-1:1993, Plastics Determination of creep behaviour Part 1: Tensile creep.ISO 1133:1997, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate
26、(MVR) ofthermoplastics.ISO 1183:1987, Plastics Methods for determining the density and relative density of non-cellular plastics.ISO 2039-2:1987, Plastics Determination of hardness Part 2: Rockwell hardness.ISO 2818:1994, Plastics Preparation of test specimens by machining.ISO 3146:1985, Plastics De
27、termination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers.ISO 3167:1993, Plastics Multipurpose test specimens.ISO 3451-1:1997, Plastics Determination of ash Part 1: General methods.ISO 10350:1993, Plastics Acquisition and presentation of comparable single-p
28、oint data.ISO 14663-1:1999, Plastics Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials Part 1: Designation system and basis for specifications.IEC 60093:1980, Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials.IEC 60112:1979
29、, Method for determining the comparative and the proof tracking indices of solid insulating materialsunder moist conditions.IEC 60243-1:1998, Electrical strength of solid insulating materials Test methods Part 1: Tests at powerfrequencies.IEC 60250:1969, Recommended methods for the determination of
30、the permittivity and dielectric dissipation factor ofelectrical insulating materials at power, audio and radio frequencies including metre wavelengths.IEC 60296:1982, Specification for unused mineral insulating oils for transformers and switchgear.IEC 60695-11-10:1999, Fire hazard testing Part 11-10
31、: Test flames 50 W horizontal and vertical flame testmethods.1)To be published. (Revision of ISO 179:1993)2)To be published. (Revision of ISO 180:1993)EN ISO 14663-2:2006 (E) 4 3 Preparation of test specimensSpecimens shall be prepared by injection moulding or by cutting from film. The method to be
32、used is indicated in thelist of properties (Table 2) for each test specimen. The code letter M is used to show that injection moulding is to beused; F is the code letter for film.It is essential that specimens are always prepared using the same processing conditions. The standard conditionsare given
33、 below.The material shall be kept in moisture-proof containers until it is required for use.The moisture content of filled or reinforced materials shall be expressed as a percentage of the total mass of thecompound.3.1 Treatment of the material before mouldingBefore processing, the moisture content
34、of the sample shall not exceed 0,3 % (m/m). If the moisture level exceedsthis limit, the material shall be dried for 24 h 2 h at a temperature of 105 C 5 C in vacuo or in a stream of driednitrogen.To ensure that the moisture content remains low, it is recommended that the material in the feed hopper
35、 of theinjection-moulding machine be blanketed with any suitable gas (dried air, nitrogen or argon, for example). Betterresults may be obtained using a dehumidifier hopper dryer.3.2 Injection mouldingInjection-moulded specimens shall be prepared in accordance with ISO 294-2, using the conditions spe
36、cified inTable 1.Table 1 Conditions for injection moulding of test specimensMaterial MelttemperatureMouldtemperatureAverageinjectionvelocityHoldpressureHold-pressuretimeMaximuminjectionpressureCoolingtimeTotalcycletimeFillercontent% (m/m)Ethylenecontent% (m/m) C C mm/s MPa s MPa s s0 15 but 30 but 4
37、5 but 15 but 30 15 but 80 80 1MFrequency 100 Hz and 1 MHz (compensatefor electrode edge effect)Volume resistivitySurface resistivityW mWIEC 60093 80 80 1 M Voltage 500 VElectric strength kV/mm IEC 60243-1 80 80 1 80 80 3MUse 25 mm/75 mm coaxial-cylinder electrodeconfiguration. Immerse in IEC 60296tr
38、ansformer oil. Use short time (rapid rise)test.Comparative trackingindex IEC 60112 15 15 4 M Use solution AOther propertiesDensity kg/m3ISO 1183 M Use method B (pyknometer method). Usetoluene/carbon tetrachloride as immersionliquids.Flammability s IEC 60695-11-10 125 10 4 M Method B afterflame time
39、of horizontalspecimens1) M = Injection mouldingEN ISO 14663-2:2006 (E) 7 Table 3 Additional properties and test conditions of particular utility to EVOH mouldingand extrusion materialsProperty Unit Standard Specimen type(dimensions in mm)Specimenpreparation1)Test conditions and supplementaryinstruct
40、ionsMechanical propertiesYield stressYield strainMPa%ISO 527-1,ISO 527-2 ISO 3167, type A MTest speed 5 mm/min (for materials withfillers or reinforcements)Izod impact strength kJ/m2ISO 180 80 10 4 M Method 1ARockwell hardness ISO 2039-2 20 20 6MOther propertiesAsh % ISO 3451-1 Moulding compound M M
41、ethod A: 600 C 25 CVolatile matter % ISO 14663-2,annex AMEthylene content % ISO 14663-2,annex BMOxygen-gas transmissionratecm3/(m224 h atm)ISO 14663-2,annex CF1) M = Injection mouldingF = FilmEN ISO 14663-2:2006 (E) 8 Annex A(normative)Determination of volatile matter (including water)A.1 ScopeThis
42、annex specifies a method of determining the volatile matter (including water) in ethylene/vinyl alcoholcopolymers.A.2 PrincipleA test portion is heated at 120 C 2 C to constant mass in a weighing bottle.A.3 ApparatusA.3.1 Air-circulation oven, capable of maintaining the temperature at 120 C 2 C.A.3.
43、2 Weighing bottle, about 40 mm in diameter and 70 mm in height, made of glass, aluminum or, preferably,stainless steel, with lid.A.3.3 Balance, accurate to 0,1 mg.A.3.4 Desiccator, containing a suitable desiccant.A.4 ProcedureWeigh the bottle (A.3.2) with its lid to the nearest 0,1 mg, after heating
44、 in the oven (A.3.1) at 120 C 2 C for 1 hand cooling to ambient temperature in the desiccator (A.3.4).Place a mass m0(about 20 g) of resin in the bottle, replace the lid and weigh to the nearest 0,1 mg.Place the assembly in the oven at 120 C 2 C, remove the lid (but leave it in the oven) and close t
45、he oven door.After 24 h 0,5 h, remove the assembly from the oven, allow to cool in the desiccator and weigh to the nearest0,1 mg. Keep the lid on during transfer and weighing. From this, calculate the mass m1of the residue.Carry out two determinations.For each determination, calculate the percentage
46、 of volatile matter from the formula given in clause A.5.If the two percentages differ by less than 0,05 % in absolute value, use them to calculate the mean.If not, carry out further determinations until two values satisfying this requirement are obtained.However, if the two values obtained are each
47、 less than 0,05 % no matter what the difference between them new determinations are not necessary.In certain special cases, it may be necessary to conduct the determination at a higher temperature of 150 C 3 Cfor 5 h 0,1 h. In reporting the results, give the reasons for choosing 150 C.EN ISO 14663-2
48、:2006 (E) 9 A.5 Expression of resultsFor each of the determinations, calculate the percentage of volatile matter (including water) to two decimal placesfrom the formulamm010100-mwherem0is the mass, in g, of the test portion before heating;m1is the mass, in g, of the test portion after heating.Calcul
49、ate the mean, to two decimal places, of the two values obtained.In the test report, give this mean as the percentage of volatile matter (including water).NOTE For ordinary use, the expression of the result to one decimal place is generally sufficient.A.6 PrecisionCooperative tests between different laboratories have shown a reproducibility, for the values determined, of 0,1 %(absolute).A.7 Test r
