DIN EN ISO 527-2-2012 Plastics - Determination of tensile properties - Part 2 Test conditions for moulding and extrusion plastics (ISO 527-2 2012) German version EN ISO 527-2 2012《.pdf

1、June 2012 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 8

2、3.080.01!$|“1896197www.din.deDDIN EN ISO 527-2Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics(ISO 527-2:2012)English translation of DIN EN ISO 527-2:2012-06Kunststoffe Bestimmung der Zugeigenschaften Teil 2: Prfbedingungen fr Form- und Extrusi

3、onsmassen (ISO 527-2:2012)Englische bersetzung von DIN EN ISO 527-2:2012-06Plastiques Dtermination des proprits en traction Partie 2: Conditions dessai des plastiques pour moulage et extrusion (ISO 527-2:2012)Traduction anglaise de DIN EN ISO 527-2:2012-06SupersedesDIN EN ISO 527-2:1996-07www.beuth.

4、deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1805.12 DIN EN ISO 527-2:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: SAC, China)

5、 in collaboration with Technical Committee ISO/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-01-02 AA Mechanische Eigenschaften und Probekrper-herstel

6、lung. The DIN Standards corresponding to the International Standards referred to in this document are as follows. For ISO 1926 and ISO 20753 there are no national standards available. ISO 293 DIN EN ISO 293 ISO 294-1 DIN EN ISO 294-1 ISO 294-2 DIN EN ISO 294-2 ISO 294-3 DIN EN ISO 294-3 ISO 295 DIN

7、EN ISO 295 ISO 527-1 DIN EN ISO 527-1 ISO 2818 DIN EN ISO 2818 ISO 3167 DIN EN ISO 3167 ISO 7500-2 DIN EN ISO 7500-2 ISO 10724-1 DIN EN ISO 10724-1 ISO 11403-3 DIN EN ISO 11403-3 Amendments This standard differs from DIN EN ISO 527-2:1996-07 as follows: a) the text of the standard has been editorial

8、ly revised; b) normative references have been updated; c) Clauses 3 and 4 have been restructured; d) Subclause 6.1 has been revised; e) Subclause 6.5 has been included; f) Clause 11 is now Annex B; g) Table 1 has been revised; h) Annex B “Precision statement” has been added. Previous editions DIN 53

9、371: 1955-10, 1959-09 DIN 53455: 1952-10, 1968-04, 1981-08 DIN 53457: 1968-05, 1987-06, 1987-10 DIN EN ISO 572-2: 1996-07 DIN EN ISO 527-2:2012-06 3 National Annex NA (informative) Bibliography DIN EN ISO 293, Plastics Compression moulding of test specimens of thermoplastic materials DIN EN ISO 294-

10、1, Plastics Injection moulding of test specimens of thermoplastic materials Part 1: General principles, and moulding of multipurpose and bar test specimens DIN EN ISO 294-2, Plastics Injection moulding of test specimens of thermoplastic materials Part 2: Small tensile bars DIN EN ISO 294-3, Plastics

11、 Injection moulding of test specimens of thermoplastic materials Part 3: Small plates DIN EN ISO 295, Plastics Compression moulding of test specimens of thermosetting materials DIN EN ISO 527-1, Plastics Determination of tensile properties Part 1: General principles DIN EN ISO 2818, Plastics Prepara

12、tion of test specimens by machining DIN EN ISO 3167, Plastics Multipurpose test specimens DIN EN ISO 10724-1, Plastics Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) Part 1: General principles and moulding of multipurpose test specimens DIN EN ISO 11403-3, Pla

13、stics Acquisition and presentation of comparable multipoint data Part 3: Environmental influences on properties DIN ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measureme

14、nt method DIN EN ISO 527-2:2012-06 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 527-2 February 2012 ICS 83.080.01 Supersedes EN ISO 527-2:1996English Version Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extru

15、sion plastics (ISO 527-2:2012)Plastiques - Dtermination des proprits en traction - Partie 2: Conditions dessai des plastiques pour moulage et extrusion (ISO 527-2:2012) Kunststoffe - Bestimmung der Zugeigenschaften - Teil 2: Prfbedingungen fr Form- und Extrusionsmassen This European Standard was app

16、roved by CEN on 14 February 2012. 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 natio

17、nal 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 langua

18、ge 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi

19、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000

20、 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 527-2:2012: E(ISO 527-2:2012) Contents Page DIN EN ISO 527-2:2012-06 EN ISO 527-2:2012 (E) 2 Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .

21、5 4 Principle and methods 5 5 Apparatus .5 5.1 General 5 5.2 Extensometer .5 5.3 Recording of data 5 6 Test specimens 5 6.1 Shape and dimensions 5 6.2 Preparation of test specimens .6 6.3 Gauge marks 6 6.4 Checking the test specimens .6 6.5 Anisotropy 6 6.6 Number of test specimens 6 7 Conditioning

22、.6 8 Procedure .6 9 Calculation and expression of results .6 10 Precision .7 11 Test report 7 Annex A (informative) Small specimens .9 Annex B (informative) Precision statement 11 Bibliography 14 Foreword This document (EN ISO 527-2:2012) has been prepared by Technical Committee ISO/TC 61 in collabo

23、ration 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 August 2012, and conflicting national standards shall

24、 be withdrawn at the latest by August 2012. 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. This document supersedes EN ISO 527-2:1996

25、. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Irela

26、nd, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 527-2:2012 has been approved by CEN as a EN ISO 527-2:2012 without any modification. “Pla

27、stics”DIN EN ISO 527-2:2012-06 EN ISO 527-2:2012 (E) 3 1 Scope1.1 This part of ISO 527 specifies the test conditions for determining the tensile properties of moulding and extrusion plastics, based upon the general principles given in ISO 527-1.1.2 The methods are selectively suitable for use with t

28、he following range of materials: rigid and semi-rigid thermoplastics moulding, extrusion and cast materials, including compounds filled and reinforced by, for example, short fibres, small rods, plates or granules but excluding textile fibres (see ISO 527-4 and ISO 527-5). See ISO 527-1:2012, Clause

29、3 for the definition of “rigid” and “semi-rigid”. rigid and semi-rigid thermosetting moulding and cast materials, including filled and reinforced compounds but excluding textile fibres as reinforcement (see ISO 527-4 and ISO 527-5); thermotropic liquid crystal polymers.The methods are not normally s

30、uitable for use with rigid cellular materials or sandwich structures containing cellular material. For rigid cellular materials see ISO 1926.The methods are not suitable for flexible films and sheets, of thickness smaller than 1 mm, see ISO 527-3.1.3 The methods are applied using specimens which may

31、 be either moulded to the chosen dimensions or machined, cut or punched from injection- or compression-moulded plates. The multipurpose test specimen is preferred (see ISO 20753).2 Normative referencesThe following referenced documents are indispensable for the application of this document. For date

32、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 293, Plastics Compression moulding of test specimens of thermoplastic materialsISO 294-1, Plastics Injection moulding of test specimens of thermo

33、plastic materials Part 1: General principles, and moulding of multipurpose and bar test specimensISO 295, Plastics Compression moulding of test specimens of thermosetting materialsISO 527-1:2012, Plastics Determination of tensile properties Part 1: General principlesISO 2818, Plastics Preparation of

34、 test specimens by machiningISO 10724-1, Plastics Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) Part 1: General principles and moulding of multipurpose test specimensISO 11403-3, Plastics Acquisition and presentation of comparable multipoint data Part 3: Envi

35、ronmental influences on propertiesISO 20753, Plastics Test specimensDIN EN ISO 527-2:2012-06 EN ISO 527-2:2012 (E) 4 3 Terms and definitionsSee ISO 527-1: 2012, Clause 3.4 Principle and methodsSee ISO 527-1:2012, Clause 4.5 Apparatus5.1 GeneralSee ISO 527-1:2012, Clause 5, specifically 5.1.1 to 5.1.

36、4.5.2 ExtensometerFor this part of ISO 527, a gauge length of 75 mm is preferred when a multipurpose test specimen is used.A gauge length of 50 mm is also acceptable for quality-control purposes or where specified.If strains are recorded only on one side of the test specimen, ensure that low strains

37、 are not falsified by bending, which may result from even faint misalignment and initial warpage of the test specimen and which generates strain differences between opposite surfaces of the test specimen.NOTE Increasing the gauge length leads to higher accuracy, especially for the modulus determinat

38、ion. The absolute accuracy of the measurement of elongation required for a 1 % accuracy of modulus determination is 1,5 m. This is less severe than the 1 m needed if a gauge length of 50 mm is used. Furthermore, necking outside of the gauge length will be less frequent.5.3 Recording of dataSee ISO 5

39、27-1:2012, 5.1.6.NOTE For the determination of the tensile modulus under the conditions v = 1mm/min, L0= 75mm, L = 115 mm and r = 0,000 5 mm, the recording frequency for the strain signal greater than or equal to 22 s-1 would be appropriate according to ISO 527-1:2012, Equation 1. This frequency inc

40、reases as the gauge length increases. With larger gauge length the absolute elongation measured by the extensometer is larger for the same crosshead displacement, i.e the recording instrument will see more data points in the same time span.6 Test specimens6.1 Shape and dimensionsWherever possible, t

41、he test specimens shall be dumb-bell-shaped types 1A and 1B, as shown in Figure 1 and Table 1. Type 1A shall be used for directly injection-moulded multipurpose test specimens, type 1B for machined specimens. Type 1A may also be used for compression-moulded specimens. For the use of proportionally s

42、caled miniaturized specimens, see Annex A and/or ISO 20753.NOTE 1 At 4 mm thickness, specimen types 1A and 1B are identical to the multipurpose test specimens according to ISO 3167, types A and B, respectively, and to types A1 and A2 of ISO 20753.For purposes where large numbers of test specimens ar

43、e to be exposed in limited space, for example, during analysis of environmental influences due to radiation, heat and/or chemicals (see ISO 11403-3), small test specimens of type C of ISO 20753 can be used. In such cases, frequently only the relative change of strength is of interest, and specimens

44、of type CW are particularly useful. To accommodate wall thicknesses of the final application, thicknesses different from those preferred in ISO 20753 may be used.NOTE 2 Other miniaturized specimens with different scale factors are defined in ISO 20753DIN EN ISO 527-2:2012-06 EN ISO 527-2:2012 (E) 5

45、6.2 Preparation of test specimensTest specimens shall be either directly injection- or compression-moulded from the material in accordance with ISO 293, ISO 294-1, ISO 295 or ISO 10724-1, as appropriate, or machined in accordance with ISO 2818 from plates that have been compression- or injection-mou

46、lded from the compound, or obtained from cast or extruded plates (sheet). The moulding conditions shall be in accordance with the relevant International Standard for the material or, if none exists, agreed between the interested parties.Strict control of all conditions of the specimen preparation is

47、 essential to ensure that all test specimens in a set are actually in the same state.All surfaces of the test specimen shall be free from visible flaws, scratches or other imperfections. From moulded specimens, all flash, if present, shall be removed, taking care not to damage the moulded surface.Te

48、st specimens from finished goods shall be taken from flat areas or zones having minimum curvature. For reinforced plastics, test specimens should not be machined to reduce their thickness unless absolutely necessary. Test specimens with machined surfaces will not give results comparable to specimens having non-machined surfaces.6.3 Gauge marksSee ISO 527-1:2012, 6.3.6.4 Checking the test specimensSee ISO 527-1:2012, 6.4.6.5 AnisotropyInjection moulded and extruded pl