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1、BRITISH STANDARD BS EN ISO 9988-1:2006 Incorporating Amendment No. 1 (to renumber BS ISO 9988-1:2004 as BS EN ISO 9988-1: 2006) Plastics Polyoxymethylene (POM) moulding and extrusion materials Part 1: Designation system and basis for specifications The European Standard EN ISO 9988-1:2006 has the st
2、atus of a British Standard ICS 83.080.20 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9988-1:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 27 September 2004 BSI
3、2006 ISBN 0 580 44488 0 National foreword This British Standard is the official English language version of EN ISO 9988-1:2006. It is identical with ISO 9988-1:2004. It supersedes BS ISO 9988-1:1998, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI
4、/82, Thermoplastic materials, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in
5、 the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for
6、its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests
7、 informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, the EN foreword, the ISO title page, pages ii and iii, a blank page, pages 1 to 6, an inside back cover
8、and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1644931 July 2006Renumbers BS ISO 9988-1:2004 as BS EN ISO 9988-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:
9、48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9988-1 April 2006 ICS 83.080.20 English Version Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 9988-1:2004) Pla
10、stiques - Matriaux base de polyoxymthylne (POM) pour moulage et extrusion - Partie 1: Systme de dsignation et base de spcification (ISO 9988-1:2004) Kunststoffe - Polyoxymethylen (POM)-Formmassen - Teil 1: Bezeichnungssystem und Basis fr Spezifikationen (ISO 9988-1:2004) This European Standard was a
11、pproved by CEN on 16 March 2006. 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 nation
12、al standards may 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 noti
13、fied to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherl
14、ands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, 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 2006 CENAll rights of exploitation i
15、n any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9988-1:2006: E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of ISO 9988-1:2004 has been prepared by Technical Committee ISO/TC 61 “
16、Plastics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 9988-1:2006 by 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
17、 an identical text or by endorsement, at the latest by October 2006, and conflicting national standards shall be withdrawn at the latest by October 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Eur
18、opean 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, Spain, Sweden, Switzerland and United Kingdom. End
19、orsement notice The text of ISO 9988-1:2004 has been approved by CEN as EN ISO 9988-1:2006 without any modifications. EN ISO 9988-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL TSDNAARD ISO 1-8899 hTdri deoitin 24000-90
20、-1 Reference number ISO 9988-1:2004(E) Plastics Polyoxymethylene (POM) moulding and extrusion materials Part 1: Designation system and basis for specifications Plastiques Matriaux base de polyoxymthylne (POM) pour moulage et extrusion Partie 1: Systme de dsignation et base de spcification INTERNATIO
21、NAL STANDARD ISO 9988-1 Third edition 2004-09-01 Refecnern eumreb OSI 8991-8:002)E(4 OSI 2004 Plasscit Polyomyxhteyenel )MOP( uomlnidg nae dxtroisum naslairet aPrt 1: ngiseDoitan syssisab dna met for oitacificepssn lPsauqitse M atriua x sabe p edoyloxymhtyl( enPOM) uopr uomlgate e exrtusion Partie 1
22、: ySstmed e sditangnoi te sabd ee scpficiitaon EN ISO 9988-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii id FDPscalimer ThFDP si fam eliy ctnome niat deddebyepfa.sec In cacnadrociw eth sebodA sneciliycilop gn, thf siam elirp eb y
23、tnide or viewb detu llahs ton tide ebed lnuet sst ehyfepcaa hcihw serdebme et desnecil era dedo tsni dnat no dellahpmoc eturep reformign ttide ehign. In odt gnidaolnwhsi liferap ,ticca setpe trehnie snopser ehtibtiliy fo not fnirA gnigniycilop gnisnecil sebod. Teh SItneC Olar Seerctraiat catpecs iba
24、il ontily t nih.aera si Aebod t a sirramedak fo AsyS ebodtmeI snocrropta.de teDalis fo tfos ehtwcudorp erats t desuo taerct ehsi FDP fb nac elie ft ni dnuoG ehreneI lanfo relative to tf eh;eli tP ehDF-rctaenoi temaraptpo erew sremizif deorp rinti.gn Evrey t neeb sah eracakt neo rusnee ttah tf ehtius
25、 si elibaf elosu re by ISO memdob rebsei. In eht kilnuyle evtne ttah a borplem retalit gno it si f,dnuo esaelp inform thtneC eral ceSrteraiat ta teh sserdda vigoleb new. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Foreword ISO (the I
26、nternational 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 committees. Each member body interested in a subject for which a technical committee
27、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 the International Electrotechnical Commission (IEC) on all matters of electrotechnica
28、l 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 International Standards adopted by the technical committees are circulated to the member bod
29、ies 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 the subject of patent rights. ISO shall not be held responsible for identifying any
30、 or all such patent rights. ISO 9988-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. This third edition cancels and replaces the second edition (ISO 9988-1:1998), of which it constitutes a minor revision in which the main changes are the deletio
31、n of the years of publication of the normative references in Clause 2 and the updating of the number of the ASTM standard used in the second example in Clause 4. ISO 9988 consists of the following parts, under the general title Plastics Polyoxymethylene (POM) moulding and extrusion materials: Part 1
32、: Designation system and basis for specifications Part 2: Preparation of test specimens and determination of properties EN ISO 9988-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Mon
33、Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ANRETNIITOTS LANDNADRA 1 Plastics Polyoxymethylene (POM) moulding and extrusion materials Part 1: Designation system and basis for specifications 1Scope 1.1This part of ISO 9988 establishes a system of designation for polyoxymethylene (POM)
34、thermoplastic materials, which may be used as the basis for specifications. Polyoxymethylene materials are thermoplastic materials composed principally of long-chain synthetic homopolymers and copolymers of formaldehyde. The repeating unit in the molecular chain is CH2O as an integral part of the ma
35、in polymer chain resulting from polymerization of formaldehyde. 1.2The types of polyoxymethylene plastic are differentiated from each other by a classification system based on appropriate levels of the following designatory properties: a)melt mass-flow rate or melt volume-flow rate, b)tensile modulu
36、s, and on information about basic polymer parameters, intended application, method of processing, important properties, additives, colorants, fillers and reinforcing materials. 1.3This part of ISO 9988 is applicable to all polyoxymethylene homopolymers and to copolymers of polyoxymethylene and blend
37、s of polymers containing polyoxymethylene. It applies to materials ready for normal use in the form of powder, granules or pellets and to materials unmodified and modified by colorants, additives, fillers, etc. 1.4It is not intended to imply that materials having the same designation necessarily giv
38、e the same performance. This part of ISO 9988 does not provide engineering data, performance data or data on processing conditions which may be required to specify materials for particular end-use applications. If such additional properties are required, they shall be determined in accordance with t
39、he test methods specified in part 2 of this International Standard. 1.5In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements may be given in data block 5 (see 3.1). EN ISO 9988-1:2006 Licensed Copy: sheffieldun sheffie
40、ldun, na, Mon Nov 20 02:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 2Normative 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 referenc
41、ed document (including any amendments) applies. ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics ISO 9988-2, Plastics Polyoxymethylene (POM) moulding and extrusion materials Part 2: Preparation of test specimens and determination of properti
42、es 3Designation and specification system 3.1General The designation and specification system for thermoplastics is based on the following standardized pattern: The designation consists of an optional description block, reading “Thermoplastics”, and an identity block comprising the International Stan
43、dard number and an individual-item block. For unambiguous designation, the individual-item block is subdivided into five data blocks comprising the following information: Data block 1: Identification of the plastic by its symbol POM in accordance with ISO 1043-1 and information about the polymerizat
44、ion process or composition of the polymer (see 3.2). Data block 2: Position 1: Intended application or method of processing (see 3.3). Positions 2 to 8: Important properties, additives and supplementary information (see 3.3). Data block 3: Designatory properties (see 3.4). Data block 4: Fillers or r
45、einforcing materials and their nominal content (see 3.5). Data block 5: For the purpose of specifications, a fifth data block may be added containing additional information (see 3.6). The first character of the individual-item block shall be a hyphen. The data blocks shall be separated from each oth
46、er by commas. If a data block is not used, this shall be indicated by doubling the separation sign, i.e. by two commas (,). 3.2Data block 1 In this data block, after the hyphen, polyoxymethylene plastics are identified by the symbol “POM” in accordance with ISO 1043-1, followed by a hyphen and the c
47、ode-letter H for homopolymers or K for copolymers. Designation Description block (optional) Identity block International Standard number block Individual-item block Data blockData blockData blockData blockData block 12345 EN ISO 9988-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:4
48、8:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 3.3Data block 2 In this data block, information about intended application and/or method of processing is given in position 1 and information about important properties, additives and colour in positions 2 to 8. The code-letters used are specified in
49、 Table 1. If information is presented in positions 2 to 8 and no specific information is given in position 1, the letter X shall be inserted in position 1. 3.4Data block 3 3.4.1General In this data block, the melt mass-flow rate or melt volume-flow rate is represented by a one-figure code-number (see 3.4.2) and the tensile modulus by a one-figure code-number (see 3.4.3). The two code-numbers are separated from each other by a hy