1、BRITISH STANDARD BS EN ISO 527-3:1996 BS 2782-3: Method 326 E: 1996 Incorporating Technical Corrigendum No. 1 and Corrigendum No. 1 Plastics Determination of tensile properties Part 3: Test conditions for films and sheets The European Standard EN ISO 527-3:1995 has the status of a British Standard P
2、roduct code 00637413 ICS 83.140.10 BS EN ISO 527-3:1996 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 January 1996 BSI 16 March 2004 The following B
3、SI references relate to the work on this British standard: Committee reference PRI/75 Draft for comment 94/304052 DC ISBN 0 580 24982 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/75, Plastics and rubber films and
4、 sheets, upon which the following bodies were represented: British Plastics Federation Her Majestys Stationery Office Institute of Trading Standards Administration Ministry of Defence Packaging and Industrial Films Association PIRA International Amendments issued since publication Amd. No. Date Comm
5、ents 13253 Technical Corrigendum No. 1 August 2001 Correction to key in Figure 3 15005 Corrigendum No. 1 16 March 2004 Correction to implementation of amendment 13253 and correction to key in Figure 4BS EN ISO 527-3:1996 BSI 16 March 2004 i Contents Page Committees responsible Inside front cover Nat
6、ional foreword ii Foreword 2 1S c o p e 3 2 Normative references 3 3 Principle 3 4 Definitions 3 5 Apparatus 3 6 Test specimens 4 7 Number of specimens 7 8 Conditioning 7 9 Procedure 7 10 Calculation and expression of results 7 11 Precision 7 12 Test report 7 Figure 1 Specimen type 2 4 Figure 2 Spec
7、imen type 5 5 Figure 3 Specimen type 1B 5 Figure 4 Specimen type 4 6BS EN ISO 527-3:1996 ii BSI 16 March 2004 National foreword This British Standard has been prepared by Technical Committee PRI/75 and is the English language version of EN 527-3:1995 Plastics Determination of tensile properties Part
8、 3: Test conditions for films and sheets, published by the European Committee for Standardization (CEN). It was derived by CEN from ISO 527-3:1995, including Technical corrigendum June 1998 and April 2001 published by the International Organization for Standardization (ISO). It is incorporated into
9、BS 2782 Methods of testing plastics: Part 3: Mechanical properties, as Method 326E:1996. EN 527-3:1995 was produced as a result of international discussions in which the United Kingdom took an active part. This test method has been prepared for reference by other standards under preparation by CEN.
10、It has been implemented to enable experience of the method to be gained and for use for other fresh applications. It is also for use for the revision or amendment of other national standards as practicable, but it should not be presumed to apply to any existing standard or specification which contai
11、ns or makes reference to a different test method, until that standard/specification has been amended or revised, to make reference to this method and adjust any requirements as appropriate. This method supersedes BS 2782-3:Method 326A:1977, Method 326B:1977 and Method 326C:1977 which are withdrawn.
12、WARNING NOTE. This British Standard, which is identical with EN ISO 527-3:1995, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 1974. Attention should be paid to any appropriate safety precautions and the method should be o
13、perated only by trained personnel Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility
14、of the BSI Electronic Catalogue or of British Standards Online. 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 does not of itself confer immunity from legal obligations. Su
15、mmary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO
16、527-3 August 1995 ICS 83.140.00 Incorporating technical corrigenda June 1998 and April 2001 Descriptors: Plastics, films, plastic sheets, tests, determination, tensile properties, testing conditions, test specimens English version Plastics Determination of tensile properties Part 3: Test conditions
17、for films and sheets (ISO 527-3:1995) Plastiques Dtermination des proprits en traction Partie 3: Conditions dessai pour films et feuilles (ISO 527-3:1995) Kunstoffe Bestimmung der Zugeigenschaften Teil 3: Prfbedingungen fr Folien und Tafeln (ISO 527-3:1995) This European Standard was approved by CEN
18、 on 1995-07-29. 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
19、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 own language and notified to the Centr
20、al Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European C
21、ommittee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN ISO 527-3:19
22、95 EEN ISO 527-3:1995 BSI 16 March 2004 2 Foreword The text of the International Standard ISO 527-3:1995 has been prepared by Technical Committee ISO/TC 61, Plastics, in collaboration with CEN/TC 249, Plastics. This European Standard shall be given the status of a national standard, either by public
23、ation of an identical text or by endorsement, at the latest by February 1996, and conflicting national standards shall be withdrawn at the latest by February 1996. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria,
24、 Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.EN ISO 527-3:1995 BSI 16 March 2004 3 1 Scope 1.1 This part of ISO 527 specifies the conditions for determining the tensile prope
25、rties of plastic films or sheets less than 1 mm thick, based upon the general principles given in part 1. NOTE For sheets greater than 1 mm thick, the user is referred to part 2 of this International Standard. 1.2 See ISO 527-1, subclause 1.2. 1.3 This part of ISO 527 is not normally suitable for de
26、termining the tensile properties of: a) cellular materials; b) plastics reinforced by textile fibres. 1.4 See ISO 527-1, subclause 1.5. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 527. At the time
27、of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 527 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain regis
28、ters of currently valid International Standards. ISO 527-1:1993, Plastics Determination of tensile properties Part 1: General principles. ISO 4591:1992, Plastics Film and sheeting Determination of average thickness of a sample, and average thickness and yield of a roll by gravimetric techniques (gra
29、vimetric thickness). ISO 4593:1993, Plastics Film and sheeting Determination of thickness by mechanical scanning. 3 Principle See ISO 527-1, Clause 3. 4 Definitions See ISO 527-1, Clause 4. 5 Apparatus See ISO 527-1, Clause 5, subject to the following additional requirements: In 5.1.2, the tensile-t
30、esting machine shall be capable of maintaining the speeds of testing as specified in Table 1 of ISO 527-1. It is normal for films and sheets to be tested at a speed of 5 mm/min, 50 mm/min, 100 mm/min, 200 mm/min, 300 mm/min or 500 mm/min. The information contained in ISO 527-1, subclause 9.6, also a
31、pplies. In 5.1.5, when testing thin sheets or film material, the specimen shall not carry the weight of the extensometer. In 5.2, devices complying with the requirements in ISO 4593 shall be used for measuring the thickness, except in the case of very thin film (less than 0,01 mm thick) or embossed
32、film. In those cases, the thickness shall be determined by the method specified in ISO 4591. When ISO 4591 is used, the average thickness of the film sample shall be taken as the thickness of the test specimen.EN ISO 527-3:1995 4 BSI 16 March 2004 6 Test specimens 6.1 Shape and dimensions 6.1.1 The
33、preferred form of test specimen for the determination of tensile properties by this method is a strip 10 mm to 25 mm wide and not less than 150 mm long (specimen type 2 see Figure 1), having two parallel gauge marks, 50 mm apart, on the central portion of the specimen. Some film materials have a ver
34、y high elongation at break which may result in them being outside the stretching capacity of the testing machine. In such cases, it is permissible to reduce the initial distance between the grips to 50 mm. 6.1.2 When required by the specification for the material under test or for routine quality-co
35、ntrol tests, dumb-bell specimen types 5, 1B and 4 of the shape and dimensions shown in Figure 2, Figure 3 and Figure 4 may be used. These specimens are convenient to produce and permit rapid quality-control testing. Specimen type 5 (Figure 2) is recommended for film and sheet with a very high strain
36、 at break. Specimen type 4 is recommended for other types of flexible thermoplastic sheet. Specimen type 1B (Figure 3) is recommended for rigid sheets. Figure 1 Specimen type 2EN ISO 527-3:1995 BSI 16 March 2004 5 Figure 2 Specimen type 5 Figure 3 Specimen type 1B (recommended radius: 60,0 mm 0,5 mm
37、) NE ISO 527-:39159 61 ISB March 4002 5 iFruge pS 2cemien pyte 5 rugiFe S 3pcet nemiy1 epB (recnemmoded rauids: ,06mm 0 ,0)mm 5 NE ISO 527-:39159 61 ISB March 4002 5 iFruge pS 2cemien pyte 5 rugiFe S 3pcet nemiy1 epB (recnemmoded rauids: ,06mm 0 ,0)mm 5 EN ISO 527-3:1995 61 ISB March 4002 5 Figure 2
38、 Specimen type 5 Figure 3 Specimen type 1B (recommended radius: 60,0 mm 0,5 mm)EN ISO 527-3:1995 6 BSI 16 March 2004 6.2 Preparation of specimens 6.2.1 The test specimens described in 6.1.1 shall be cut or punched so that the edges are smooth and free from notches; examination with a low-power magni
39、fier is recommended to check the absence of notches. Razor blades, suitable paper cutters, scalpels or other devices capable of cutting the specimens to the proper width and producing straight, clean, parallel edges with no visible imperfections shall be used. Punch dies shall be kept sharp by regul
40、ar honing, and a suitable backing material shall be used with punch dies to ensure a clean-cut edge. 98 mm 6.2.2 The test specimens described in 6.1.2 shall be obtained by the use of punch dies, using suitable backing material to ensure a clean-cut edge. Dies shall be kept sharp by regular honing, a
41、nd the edges of the specimen shall be examined with a low-power magnifier to ensure the absence of notches. Discard any specimen with obvious imperfections on the cut edges. 6.3 Gauge marks See ISO 527-1, subclause 6.3. The marking device used to produce the gauge marks shall have two parallel edges
42、 which are ground smooth and true, 0,05 mm to 0,10 mm wide at the edge and bevelled at an angle of not more than 15 . An ink stamp may also be used to apply ink to the area of the gauge marks, before or after producing them with the marking device, using an ink of a suitable contrasting colour that
43、has no deleterious effect on the film being tested. 6.4 Checking the specimens Discard any test specimen with obvious imperfections on the cut edges. 6.5 Anisotropy The properties of certain types of film material may vary with direction in the plane of the film (anisotropy). In such cases, it is es
44、sential to prepare two groups of test specimens with their major axes respectively parallel and perpendicular to the direction of orientation of the film. Figure 4 Specimen type 4 EN SI25 O3-7:1599 6 B SI 61 Mrach 4002 2.6 rPperaatfo noi spcesnemi 1.2.6 Tht eest psicemsne deircsbei dn 1.1.6 shlal eb
45、 o tucr ps dehcnut ohta htgde ea sers emotoh naeerf d orfm notcxe ;sehamiantioiw na ht loop-wam rewingfiei rs erdnemmoct deo kcehc eht abeso ecnf toncseh. Ralb rozadse, iustablap etuc repter,s acslleps or toved rehiceac saplbe of tuctint ghs epicemsne ot the orppiw retda hnicudorp dgn starigthlc ,ea
46、n, aparllel edseg iwon ht ivisble imeptcefrisno sahll be su.de Punch dsei hslaek eb lpt sharp yb gerualr honnig, and us atilbaab enikcg ametlair sheb lla used wtih punch seid to ensuer a c-naelcut dege. 98 mm 2.2.6 Tht eest psicemsne deircsbei dn 2.1.6 shlal eb boatinb dey thesu e nup foceid hs, sug
47、ni suitable abtam gnikceirt lao ensua er -naelcuct edgeD .eis hslaeb l ekpt shpra yb erguh ralonnigna ,d hte edges fo ths epicems nehall be axeminw deith a lo-wewopgam rnifiet ro neerus eht baseecn on foehct.s iDscdra yna spceimw neith obvisuo impecefrtisno on eht tuc edegs. 3.6 Gaegu amrks eSe OSI
48、5-72,1 usalcbuse 3.6. hTam ekrined givesu ecot d ecudorp eht agam egukrs ahsll ahev owt aparllel egdeihw sca hrorg ednu smooht nad urte0,0 ,ot mm 5 01,0 iw mmde ta the edge nad ebvellde ta an naglo ef noom ter thna 51 nA . in kstmapm aya losb eu sdet oa plp yint kot ha eraeo ft h egaguem ark,s beofr
49、eo ra fetrp roducnigt hem wihtt hm eanikrgd eveciu ,snig ani no kfs a uatielbnoc tsartnigloc ourt hh taasn od eeletoirue sffetco nt he fib mleingt ested.4.6Checkt gnihs epcesnemi iDacsra dnt yetss picemw neith obivi suomeptcefrio snoneht e tuc dseg. sinA 5.6rtopoy hTorp eptreio sefrec tait nysepf fo ilmm ateirlam av ya yrwid htieritco n niehtp lenao feht f ilm( asinotrypo). s nI
