1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58products Part 2: Preparation of test specimens and determination of propertiesThe European Standard
2、 EN ISO 13000-2:2005 has the status of a British StandardICS 83.140.01Plastics Polytetra-fluoroethylene (PTFE) semi-finished BRITISH STANDARDBS EN ISO 13000-2:2005BS EN ISO 13000-2:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 Januar
3、y 2006 BSI 13 January 2006ISBN 0 580 47193 4Cross-referencesThe 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”
4、facility 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 obligat
5、ions.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 11 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amend
6、ments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request to its secretary. present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests infor
7、med; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN ISO 13000-2:2005. It is identical with ISO 13000-2:2005. It supersedes BS EN ISO 13000-2:1998 which is withdrawn.The UK par
8、ticipation in its preparation was entrusted to Technical Committee PRI/82, Thermoplastic materials, which has the responsibility to: aid enquirers to understand the text;EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 13000-2November 2005ICS 83.140.01 Supersedes EN ISO 13000-2:1997 English Ver
9、sionPlastics - Polytetrafluoroethylene (PTFE) semi-finished products- Part 2: Preparation of test specimens and determination ofproperties (ISO 13000-2:2005)Plastiques - Semi-produits en polyttrafluorothylne(PTFE) - Partie 2: Prparation des prouvettes etdtermination des proprits (ISO 13000-2:2005)Ku
10、nststoffe - Polytetrafluorethylen (PTFE)-Halbzeuge - Teil2: Herstellung von Probekrpern und Bestimmung vonEigenschaften (ISO 13000-2:2005)This European Standard was approved by CEN on 4 November 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
11、ions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three offi
12、cial versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Bel
13、gium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT
14、 EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 13000-2:2005: EForeword This document (EN ISO 13000-2:2005) has be
15、en prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with 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
16、the latest by May 2006, and conflicting national standards shall be withdrawn at the latest by May 2006. This document supersedes EN ISO 13000-2:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europe
17、an Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement not
18、ice The text of ISO 13000-2:2005 has been approved by CEN as EN ISO 13000-2:2005 without any modifications. EN ISO 13000-2:2005Reference numberISO 13000-2:2005(E)INTERNATIONAL STANDARD ISO13000-2Second edition2005-11-15Plastics Polytetrafluoroethylene (PTFE) semi-finished products Part 2: Preparatio
19、n of test specimens and determination of properties Plastiques Semi-produits en polyttrafluorothylne (PTFE) Partie 2: Prparation des prouvettes et dtermination des proprits EN ISO 13000-2:2005ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Sampling
20、 2 5 Preparation of test specimens 2 6 Testing of semi-finished PTFE products 2 6.1 General. 2 6.2 Linear dimensions 2 6.3 Tensile properties. 3 6.4 Density . 7 6.5 Loss in mass at 300 C. 7 6.6 Dimensional stability General method. 7 6.7 Dimensional stability Special method for the determination of
21、the dimensional and the geometrical stability of thick-walled tubes 8 6.8 Electrical properties . 9 6.9 Hardness 9 6.10 Colour 9 6.11 Radiographic examination. 9 6.12 Resistance to environmental stress cracking (ESC) 9 6.13 Deformation under load . 9 Annex A (informative) Other standards relating to
22、 testing semi-finished products of PTFE 10 EN ISO 13000-2:2005iv 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 c
23、ommittees. 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 t
24、he 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 Internat
25、ional 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
26、 the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 13000-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. This second edition cancels and replaces the first edition (ISO 13000-2:199
27、7), which has been technically revised. ISO 13000 consists of the following parts, under the general title Plastics Polytetrafluoroethylene (PTFE) semi-finished products: Part 1: Requirements and designation Part 2: Preparation of test specimens and determination of properties EN ISO 13000-2:20051Pl
28、astics Polytetrafluoroethylene (PTFE) semi-finished products Part 2: Preparation of test specimens and determination of properties WARNING Persons using this document should be familiar with normal laboratory practice, if applicable. This document does not purport to address all of the safety concer
29、ns, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory requirements. 1 Scope This part of ISO 13000 specifies the preparation of test specimens and gives the test methods applicable t
30、o semi-finished products of polytetrafluoroethylene (PTFE). 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 (i
31、ncluding any amendments) applies. ISO 472, Plastics Vocabulary ISO 527-2, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics ISO 527-3, Plastics Determination of tensile properties Part 3: Test conditions for films and sheets ISO 868, Plastics an
32、d ebonite Determination of indentation hardness by means of a durometer (Shore hardness) ISO 1183 (all parts), Plastics Methods for determining the density of non-cellular plastics ISO 1923, Cellular plastics and rubbers Determination of linear dimensions ISO 2039-1, Plastics Determination of hardne
33、ss Part 1: Ball indentation method ISO 3611, Micrometer callipers for external measurement ISO 4599, Plastics Determination of resistance to environmental stress cracking (ESC) Bent strip method ISO 4600, Plastics Determination of environmental stress cracking (ESC) Ball or pin impression method ISO
34、 13000-1, Plastics Polytetrafluoroethylene (PTFE) semi-finished products Part 1: Requirements and designation EN ISO 13000-2:20052 IEC 60243-1:1998, Electrical strength of insulating materials Part 1: Tests at power frequencies IEC 60243-2, Electric strength of insulating materials Part 2: Additiona
35、l requirements for tests using direct voltage ASTM D 621-64, Test methods for Deformation of Plastics Under Load (Withdrawn see Subclause 6.13 for details of availability) ASTM D 1389, Standard Test Method for Proof-Voltage Testing of Thin Solid Electrical Insulating Materials ASTM E 94, Standard Gu
36、ide for Radiographic Examination CIE Publication No. 15, Colorimetry 3 Terms and definitions For the purposes of this part of ISO 13000, the terms and definitions given in ISO 472 and ISO 13000-1 apply. 4 Sampling Details of procedures for sampling semi-finished products depend to a large extent on
37、the physical shape of the particular material. Whenever feasible, the materials shall be sampled. Sampling shall be statistically adequate to satisfy the requirements of the test method concerned. 5 Preparation of test specimens The specimens used for testing shall be taken directly from or shall be
38、 machined from the semi-finished product without other treatment. Thus, conversion of a semi-finished product into a test specimen by any moulding procedure is not permitted. Where applicable, ISO standards shall be followed for the preparation of test specimens. In some instances, special procedure
39、s are required that are described either in the general discussion or in the method. 6 Testing of semi-finished PTFE products 6.1 General Properties required for specification purposes shall be determined in accordance with the International Standards referenced in this part of ISO 13000 or the proc
40、edures given in this part of ISO 13000. For the determination of density, tensile properties, hardness and electrical properties, condition the test specimens at 23 C 2 C for a period of at least 4 h prior to test. The other tests require no conditioning. Annex A provides a list of other standards r
41、elating to testing semi-finished products of PTFE. 6.2 Linear dimensions These shall be determined by the procedures provided in ISO 1923 for cellular plastics. EN ISO 13000-2:200536.3 Tensile properties 6.3.1 Tensile specimens 6.3.1.1 General The appropriate type of test specimen shall be chosen fr
42、om those given in 6.3.1.2 to 6.3.1.5. At least three test specimens shall be prepared from the sample and three specimens shall be tested. NOTE Test specimens prepared from moulded basic shapes, rods or tubes conforming to 6.3.1.2 are likely to give results similar to those obtained with test specim
43、ens prepared from the same product but conforming to 6.3.1.3. When testing extruded products, the test specimens shall be cut parallel to the axis of extrusion so that, as far as possible, each test specimen represents a different section along the axis and a different area of the cross-section. Whe
44、n testing skived tape, skived sheet or skived film, the test specimens shall be cut perpendicular to the direction in which the pressure was applied when moulding the billet from which the product was skived. If this direction is not known, two sets of test specimens shall be prepared and tested, th
45、e test specimens in one set being cut at 90 to those in the other set and the mean result shall be calculated from the higher set of values (indicating, typically, the direction perpendicular to the axis of applied pressure). This procedure ensures a uniform way of reporting test results. The micro-
46、tensile test specimen (see 6.3.1.3) is used most commonly for PTFE products. 6.3.1.2 Turned dumb-bell test specimens The test specimens shall be turned so that their dimensions are in the ratios given in Figure 1, and so that the shape is as shown in Figure 1. The value of the larger diameter (D) sh
47、all be 7 mm 0,5 mm, 10 mm 0,5 mm or 20 mm 0,5 mm. Ratios of dimensions of turned dumb-bell specimens: d = 0,45D to 0,55D L = 5D to 6D l = 3D to 3,5D R = 0,2D to 0,3D Figure 1 Turned dumb-bell specimen 6.3.1.3 Micro-tensile (small punched dumb-bell) test specimens The sample shall be machined to prod
48、uce a sheet or disc of thickness 1,5 mm to 2,5 mm, or turned to produce a rectangular-section ring which can be cut and flattened to give such a sheet. Test specimens conforming to the shape shown in Figure 2 and the dimensions given in Table 1 for micro-tensile specimens shall be punched from a she
49、et or disc using a single-stroke press and the appropriate knife-edged die. In any one test specimen, the thickness of the narrow, parallel-sided portion shall nowhere deviate by more than 2 % EN ISO 13000-2:20054 from the mean. The sheet shall be supported, while the test specimens are punched from it, on a slightly yielding material having a smooth surface (e.g. leather, rubber or high-quality cardboard) on a flat, rigid base. The cutting edge
