EN-ISO-527-2.pdf
《EN-ISO-527-2.pdf》由会员分享,可在线阅读,更多相关《EN-ISO-527-2.pdf(25页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD Plastics - Determination of tensile properties - Part2 Test conditions for moulding and extrusion plastics The Eurpean Standard EN I S 0 527-2 : 1996 has the status of a British $tandaEd EWOR”T NOTE. Before reaing t h i s metho it i s essential t o read Bs 27$2 : Part o, Inmuctioq i
2、ssued separateu. BS EN IS0 527-2 : 1996 BS 2782 : Part 3 : Method 322 : 1994 Incorporating Amendment No. 1 R 9 8 7 8 . 2 : Part 9 : Method322 : 1994 mu- NO COPYING WITHOUT BSI PEBMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW I. Copyright European Committee for Standardization Provided by IHS under li
3、cense with CENLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 04/24/2008 03:08:19 MDTNo reproduction or networking permitted without license from IHS -,-,- BS EN IS0 627-2 : 1996 . Issue 2, November 1996 National foreword This BrishStandardhasbeenprepare byikmicai CommitteepRyzl a
4、ndis the I versionofENIS-2:l- t e n s u e - * - p a i t 2 a n u J b r d i n g a n - *h. i t i s identical with Is0 527-2 : 1993, pubiishe by the Intemational - o n for Stm-on ?Al). Together with BS 2782 : Method 321 : 1993 itsupmecis Method3 32QA and 32B given i n EIS 2782 : Methods 32OA to 32OF : 1
5、 9 7 6 , which are deleted by amendment I Cross-references internrttonai atanard IS0 293 : 19S6 - IS0 294 : 1975 IS0 295 : 1991 IS0 627-1 : 1993 IS0 2818 : 1980 Corresponding British Standard BS 2782 Methods qf - rigid and semirigid thermosetting moulding and cast materials, including filled and rei
6、nforced com- pounds but excluding textile fibres as reinforce- ment (see IS0 527-4 and IS0 527-5); - thermotropic liquid crystal polymers. The methods are not suitable for use with materials reinforced by textile fibres (see IS0 527-4 and IS0 527-51, with rigid cellular materials or sandwich structu
7、res containing cellular material. 1.3 The methods are applied using specimens which may be either moulded to the chosen dimen- sions or machined, cut or punched from injection- or compression-moulded plates. The multipurpose test specimen is preferred (see IS0 31 67:1993, Plastics - Multipurpose tes
8、t specimens). 1) To be published. (Revision of IS0 294:1975) 2) To be published. (Revision of IS0 2818:1980) 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 527. At the time of publication, the edition
9、s indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 527 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid Int
10、ernational Standards. IS0 37:1977, Rubber, vulcanized - Determination of tensile stress-strain properties. IS0 293:1986, Plastics - Compression moulding test specimens of thermoplastic materials. IS0 294:-”, Plastics - Injection moulding of test specimens of thermoplastic materials. IS0 295:1991, Pl
11、astics - Compression moulding of test specimens of thermosetting materials. IS0 527-1 : 1993, Plastics - Determination of tensile properties - Part 1: General principles. IS0 1926: 1 979, Cellular plastics - Determination of tensile properties of rigid materials. IS0 281 8:-2), Plastics - Preparatio
12、n of test speci- mens by machining. 1 Copyright European Committee for Standardization Provided by IHS under license with CENLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 04/24/2008 03:08:19 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 527-2:1993
13、(E) 3 Principle Test specimens from finished goods shall be taken from flat areas or zones having minimum curvature. See IS0 527-1:1993, clause 3. For reinforced plastics, test specimens should not be machined to reduce their thickness unless absolutely necessary. Test specimens with machined surfac
14、es 4 Definitions will not give results comparable to specimens having non-machined surfaces. For the purposes of this part of IS0 527, the defi- nitions given in IS0 527-1 apply. 6.3 Gauge marks 5 Apparatus See IS0 527-1 :1993, clause 5. 6 Test specimens 6.1 Shape and dimensions See IS0 527-1 :1993,
15、 subclause 6.3. 6.4 Checking the test specimens See IS0 527-1 :1993, subclause 6.4. 7 Number of test specimens Wherever possible, the test specimens shall be dumbbell-shaped types 1A and 1 B as shown in See ISo 527-1 :1 9931 figure 1. Type 1A is preferred for directly-moulded multipurpose test speci
16、mens, type 1 B for machined 8 Conditioning specimens. 7. See IS0 527-1:1993, clause 8. NOTE 1 Types 1A and 1B test specimens havinn 4 mm thickness areidentical to the multipurpose test spcimens according to IS0 3167, types A and B, respectively. 9 Procedure For the use of small specimens, see annex
17、A. 6.2 Preparation of test specimens the relevant material specification. When none exists, or unless otherwise specified, specimens shall be ei- ther directly compression- or injection moulded from the material in accordance with IS0 293, IS0 294 or IS0 295, as appropriate, or machined in accordanc
18、e with IS0 2818 from dates that have been com- See IS0 527-1:1993, clause 9. For the measurement of the modulus of elasticity, the speed of testing shall be 1 mm/min for specimen see annex A. 10 See IS0 527-1:1993, clause 10. Test specimens shall be prepared in accordance with types 1A and 1B (see f
19、igurei)- For small specimens Calculation and expression of results pression- or injection-moulded from the compound. I 1 Precision All surfaces of the test specimens shall be free from visible flaws, scratches or other imperfections. From moulded specimens all flash, if present, shall be re- moved,
20、taking care not to damage the moulded sur- face. The precision of this test method is not known, be- cause interlaboratory data are not available. When interlaboratory data are obtained, a precision state- ment will be added with the next revision. 2 Copyright European Committee for Standardization
21、Provided by IHS under license with CENLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 04/24/2008 03:08:19 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 527-2:1993(E) 80 f 2 20 to 25 104 to 1133) 12 Test report Tensile test IS0 527-2/1A/50 d Type of
22、specimen (see figure 1) Testing speed, In millimetres per minute (see IS0 527-1: 1992, table 1) The test report shall include the following information: a) a reference to this part of IS0 527, including the type O f Specimen and the testing speed according For items b) to q) in the test report, see
23、to: IS0 527-1 1993, 12 b) to 9). 60,O f 0,5 3 602) 106 to 1203) I Specimen type Overall length Length of narrow parallel-sided portion Radius Distance between broad parallel-sided portions Width at ends Width of narrow portion Preferred thickness Gauge length Initial distance between grips Dimension
24、s in millimetres I NOTE - Specimen type 1 A is preferred for directly-moulded multipurpose test specimens, type 1 B for machined speci- mens. 1) For some materials, the length of the tabs may need to be extended (e. g. l3 = 200 mm) to prevent breakage or slippage in the testing jaws. 3) Resulting fr
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- EN ISO 527
链接地址:https://www.31doc.com/p-3755725.html