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1、BRITISH STANDARD BS EN ISO 180:2001 Incorporating amendment no. 1 Plastics Determination of Izod impact strength The European Standard EN ISO 180:2000, with the incorporation of amendment A1:2006, has the status of a British Standard ICS 83.080.01 ? BS EN ISO 180:2001 This British Standard, having b
2、een prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 March 2006 BSI 2007 ISBN 0 580 36903 X National foreword This British Standard was published by BSI. It is the UK implementat
3、ion of EN ISO 180:2000, incorporating amendment A1:2006. It is identical with ISO 180:2000, incorporating amendment 1:2006. It supersedes BS EN ISO 180:1997, which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating chang
4、es to ISO text carry the number of the ISO amendment. For example, text altered by ISO amendment 1 is indicated by !“. The UK participation in its preparation was entrusted to Technical Committee PRI/21, Plastics test methods. A list of organizations represented on PRI/21 can be obtained on request
5、to its secretary. 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 cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 16
6、99030 March 2007See national foreword EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 180 December 2000 ICS 08.008.01Supersedes EN ISO 180:1996 English version Plastics - Determination of Izod impact strength (ISO 180:2000) Plastiques - Dtermination de la rsistance au choc Izod (ISO 180:200
7、0) Kunststoff - Bestimmung der Izod-Schlagzhigkeit (ISO 180:2000) This European Standard was approved by CEN on 3 December 2000. 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 standar
8、d without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other langua
9、ge made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Icel
10、and, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitatio
11、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 180:2000 E + A1 December 2006 Foreword The text of the International Standard ISO 180:2000 has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “P
12、lastics“, the secretariat of which is held by IBN. This European Standard supersedes EN ISO 180:1996. 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 June 2001, and conflicting national standards
13、shall be withdrawn at the latest by June 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Irela
14、nd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 180:2000 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards a
15、re listed in annex ZA (normative). EN ISO 180:2000 This document (EN ISO 180:2000/A1:2006) has been 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
16、 status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the f
17、ollowing countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
18、Spain, Sweden, Switzerland and United Kingdom. Endorsement notice Foreword to amendment A1 _ The text of ISO 180:2000/Amd1:2006 has been approved by CEN as EN ISO 180:2000/A1:2006 without any modifications. Reference number ISO 180:2000(E) INTERNATIONAL STANDARD ISO 180 Third edition 2000-12-15 Plas
19、tics Determination of Izod impact strength Plastiques Dtermination de la rsistance au choc Izod EN ISO 180:2000 ii ISO 081:(0002)E iii ContentsPage Foreword.iv 1Scope 1 2Normative references2 3Terms and definitions .2 4Principle3 5Apparatus.3 6Test specimens3 7Procedure.7 8Calculation and expression
20、 of results. 9Precision. 8 10Test report EN ISO 180:2000 9 9 ISO 081:(0002)E iv 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
21、ISO technical committees. 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
22、 closely with the 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 3. Draft International Standards adopted by the technical committees are circul
23、ated 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 International Standard may be the subject of patent rights. ISO shall not be
24、held responsible for identifying any or all such patent rights. International Standard ISO 180 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 2, Mechanical properties. This third edition cancels and replaces the second edition (ISO 180:1993), which has been technically revi
25、sed. EN ISO 180:2000 INTENRATIONAL TSANDADRISO 081:(0002)E 1 Plastics Determination of Izod impact strength 1Scope 1.1This International Standard specifies a method for determining the Izod impact strength of plastics under defined conditions. A number of different types of specimen and test configu
26、rations are defined. Different test parameters are specified according to the type of material, the type of test specimen and the type of notch. 1.2The method is used to investigate the behaviour of specified types of specimen under the impact conditions defined and for estimating the brittleness or
27、 toughness of specimens within the limitations inherent in the test conditions. 1.3The method is suitable for use with the following range of materials: ?rigid thermoplastic moulding and extrusion materials, including filled and reinforced compounds in addition to unfilled types; rigid thermoplastic
28、s sheets; ?rigid thermosetting moulding materials, including filled and reinforced compounds; rigid thermosetting sheets, including laminates; ?fibre-reinforced thermosetting and thermoplastic composites incorporating unidirectional or non-unidirectional reinforcements such as mat, woven fabrics, wo
29、ven rovings, chopped strands, combination and hybrid reinforcements, rovings and milled fibres and sheet made from pre-impregnated materials (prepregs); ?thermotropic liquid-crystal polymers. 1.4The method is not normally suitable for use with rigid cellular materials and sandwich structures contain
30、ing cellular material. Also, notched specimens are not normally used for long-fibre-reinforced composites or thermotropic liquid-crystal polymers. 1.5The method is suited to the use of specimens which may be either moulded to the chosen dimensions, machined from the central portion of a standard mul
31、tipurpose test specimen (see ISO 3167) or machined from finished or semifinished products such as mouldings, laminates and extruded or cast sheet. 1.6The method specifies preferred dimensions for the test specimen. Tests which are carried out on specimens of different dimensions or with different no
32、tches, or specimens which are prepared under different conditions, may produce results which are not comparable. Other factors, such as the energy capacity of the apparatus, its impact velocity and the conditioning of the specimens can also influence the results. Consequently, when comparative data
33、are required, these factors must be carefully controlled and recorded. 1.7The method should not be used as a source of data for design calculations. Information on the typical behaviour of a material can be obtained, however, by testing at different temperatures, by varying the notch radius and/or t
34、he thickness and by testing specimens prepared under different conditions. EN ISO 180:2000 2 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendm
35、ents to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edit
36、ion of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 291 Plastics ? Standard atmospheres for conditioning and testing. ISO 293, Plastics ? Compression moulding test specimens of thermoplastic materials. ISO 294-1
37、, Plastics ? Injection moulding of test specimens of thermoplastic materials ? Part 1: General principles, and moulding of multipurpose and bar test specimens. ISO 295:1991, Plastics ? Compression moulding of test specimens of thermosetting materials. ISO 2602, Statistical interpretation of test res
38、ults ? Estimation of the mean ? Confidence interval. ISO 2818, Plastics ? Preparation of test specimens by machining. ISO 3167, Plastics ? Multipurpose test specimens. ISO 10724-1, Plastics ? Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) ? Part 1: General pri
39、nciples and moulding of multipurpose test specimens. ISO 13802, Plastics ? Verification of pendulum impact-testing machines ? Charpy, Izod and tensile impact- testing. 3Terms and definitions For the purposes of this International Standard, the following terms and definitions apply. 3.1 Izod unnotche
40、d impact strength aiU impact energy absorbed in breaking an unnotched specimen, referred to the original cross-sectional area of the specimen NOTEIt is expressed in kilojoules per square metre (kJ/m2). 3.2 Izod notched impact strength aiN impact energy absorbed in breaking a notched specimen, referr
41、ed to the original cross-sectional area of the specimen at the notch, with the pendulum striking the face containing the notch NOTEIt is expressed in kilojoules per square metre (kJ/m2). EN ISO 180:2000 ,! “ Footnotes deleted!“ ISO 1268 (all parts), Fibre-reinforced plastics Methods of producing tes
42、t plates. 3 3.3 parallel impact p ?laminar-reinforced plastics? impact with the direction of blow parallel to the plane of reinforcement NOTEThe direction of the blow in the Izod test is usually “edgewise parallel” (ep) ( see Figures 1 and 2 ). 3.4 normal impact n ?laminar-reinforced plastics? impac
43、t with the direction of blow normal to the plane of reinforcement NOTEThis kind of impact is not usually used with the Izod test, but is indicated for the sake of completion ( see also Figures 1 and 2 ). 4Principle The test specimen, supported as a vertical cantilever beam, is broken by a single imp
44、act of a striker, with the line of impact a fixed distance from the specimen clamp and, in the case of notched specimens, from the centreline of the notch (see Figure 2). 5Apparatus 5.1Test machine 5.1.1The principles, characteristics and verification of suitable test machines are detailed in ISO 13
45、802. 5.1.2Some plastics are sensitive to clamping pressure. When testing such materials, a means of standardizing the clamping force shall be used and the clamping force shall be recorded in the test report. The clamping force can be controlled by using a calibrated torque wrench or a pneumatic or h
46、ydraulic device on the vice clamping screw. 5.2Micrometers and gauges Micrometers and gauges capable of measuring the essential dimensions of test specimens to an accuracy of 0,02 mm are required. For measuring the dimension bNof notched specimens, the micrometer shall be fitted with an anvil of wid
47、th 2 mm to 3 mm and of suitable profile to fit the shape of the notch. 6Test specimens 6.1Preparation 6.1.1Moulding and extrusion compounds Specimens shall be prepared in accordance with the relevant material specification. When none exists, and unless otherwise specified, specimens shall be either
48、directly compression moulded or injection 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 sheet that has been compression or injection moulded from the compound. Specimens may also be cut from multip
49、urpose test specimens complying with ISO 3167, type A. EN ISO 180:2000 ISO 13802 describes partial verification and full verification. In the case of full verification, some items are difficult to verify when the apparatus is assembled. Such verifications are assumed to be incumbent on the manufacturer. ! “ !“ ! “ ISO 081:(0002)E 4 Key 1Direction of blow3Fixed vice jaw 2Movable vice jaw4Optional groove Edgewise (e) and flatwise (f) indicate the direction of the blow with respect to