1、BS EN ISO 20028-1:2017Plastics Thermoplasticpolyester (TP) moulding andextrusion materialsPart 1: Designation system and basis forspecificationsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 20028-1:2017 BRITISH STANDARDNational forewordThis British Standa
2、rd is the UK implementation of EN ISO20028-1:2017. It supersedes BS EN ISO 7792-1:2012 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/82, Thermoplastic materials.A list of organizations represented on this committee can beobtained on request to its
3、 secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 87269 3ICS 83.080.20Compliance with a British Standard ca
4、nnot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2017.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20028-1 March 201
5、7 ICS 83.080.20 Supersedes EN ISO 7792-1:2012English Version Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 20028-1:2017) Plastiques - Matriaux polyesters thermoplastiques (TP) pour moulage et extrusion - Partie
6、 1: Systme de dsignation et base de spcification (ISO 20028-1:2017) Kunststoffe - Thermoplastische Polyester (TP)-Werkstoffe - Teil 1: Bezeichnungssystem und Basis fr Spezifikationen (ISO 20028-1:2017) This European Standard was approved by CEN on 3 February 2017. CEN members are bound to comply wit
7、h 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 be obtained on application to the CEN-CENELEC Manag
8、ement Centre 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 CEN-CENELEC Management Centre has the same sta
9、tus as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
10、a, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
11、2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20028-1:2017 EBS EN ISO 20028-1:2017EN ISO 20028-1:2017 (E) 3 European foreword This document (EN ISO 20028-1:2017) has been prepared by Technical Committee ISO/TC 61 “Plasti
12、cs“ in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. 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 September 2017, and conflicting nationa
13、l standards shall be withdrawn at the latest by September 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersed
14、es EN ISO 7792-1:2012. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of
15、 Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20028-1:2017 has been
16、 approved by CEN as EN ISO 20028-1:2017 without any modification. BS EN ISO 20028-1:2017ISO 20028-1:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Designation system 24.1 General . 24.2 Data block 1 . 24.3 Data block 2 . 34.4 Data block 3 . 44.5 Data
17、block 4 . 54.5.1 General 54.5.2 Viscosity number . 54.5.3 Tensile modulus of elasticity . 64.6 Data block 5 . 75 Examples of designations 75.1 Designation only 75.2 Designation transformed into a specification 9Annex A (normative) Designation of thermoplastic polyesters 10Bibliography .13 ISO 2017 A
18、ll rights reserved iiiContents PageBS EN ISO 20028-1:2017ISO 20028-1:2017(E)ForewordISO (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 t
19、echnical 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 clos
20、ely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria n
21、eeded for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of pa
22、tent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name
23、used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) p
24、rinciples in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials.This first edition of ISO 20028-1 cancels and replaces ISO 7792-1:2012, which
25、 has been technically revised to introduce a new designation system.The revised designation system is published under a new ISO number, as many existing documents refer to ISO 7792-1. If the existing ISO 7792-1 would be replaced by the new designation system, these documents would refer to the incor
26、rect designation system.In order to give users time to switch from ISO 7792-1 to ISO 20028-1, any designation system according to ISO 7792-1 is to be phased out in 5 to 10 years.A list of all parts in the ISO 20028 series can be found on the ISO website.iv ISO 2017 All rights reservedBS EN ISO 20028
27、-1:2017ISO 20028-1:2017(E)IntroductionISO 7792-1 is complex and does not fit with daily practice anymore. In practice, ISO 1043 and ISO 11469 are, in combination, “improperly” being used as a designation system for, for example, marking. The aim of this revision is to simplify the data block system
28、and to connect more to ISO 1043 and ISO 11469, where the first two blocks are used for generic identification and marking of products. ISO 2017 All rights reserved vBS EN ISO 20028-1:2017BS EN ISO 20028-1:2017Plastics Thermoplastic polyester (TP) moulding and extrusion materials Part 1: Designation
29、system and basis for specifications1 ScopeThis document establishes a system of designation for thermoplastic polyester (TP) material, which can be used as the basis for specifications. It covers polyester homopolymers for moulding and extrusion based on poly(ethylene terephthalate) (PET), poly(buty
30、lene terephthalate) (PBT), poly(cyclohexylenedimethylene terephthalate) (PCT), poly(ethylene naphthalate) (PEN), poly(butylene naphthalates) (PBN) and other TP-types and copolyesters of various compositions for moulding and extrusion.The types of thermoplastic polyester are differentiated from each
31、other by a classification system based on appropriate levels of the designatory properties:a) viscosity number;b) tensile modulus of elasticity;and on information about the intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials
32、.This designation system is applicable to thermoplastic polyester homopolymers and copolymers. It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colorants, fillers and other additives. This document does not apply to the saturated poly
33、ester/ester and polyether/ester thermoplastic elastomers covered by ISO 20029.It is not intended to imply that materials having the same designation give necessarily the same performance. This document does not provide engineering data, performance data or data on processing conditions which can be
34、required to specify a material. If such additional properties are required, they are intended to be determined in accordance with the test methods specified in ISO 20028-2, if suitable.In order to designate a thermoplastic polyester material to meet particular specifications, the requirements are to
35、 be given in data block 5 (see 3.1).2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of
36、 the referenced document (including any amendments) applies.ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristicsISO 1043-2, Plastics Symbols and abbreviated terms Part 2: Fillers and reinforcing materialsISO 1628-5, Plastics Determination of the
37、 viscosity of polymers in dilute solution using capillary viscometers Part 5: Thermoplastic polyester (TP) homopolymers and copolymersISO 20028-2, Plastics Thermoplastic polyester (TP) moulding and extrusion materials Part 2: Preparation of test specimens and determination of propertiesINTERNATIONAL
38、 STANDARD ISO 20028-1:2017(E) ISO 2017 All rights reserved 1BS EN ISO 20028-1:2017ISO 20028-1:2017(E)ASTM D5927, Standard Classification System for and Basis for Specifications for Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO Test Methods3 Terms and definitionsNo ter
39、ms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 Designation
40、system4.1 GeneralThe designation system for thermoplastics is based on the following standardized pattern.DesignationDescription Identity blockBlock (optional)International StandardIndividual item blocknumber blockData block 1 Data block 2 Data block 3 Data block 4 Data block 5The designation consis
41、ts of an optional description block, reading “Thermoplastics”, and an identity block comprising the International Standard 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
42、1: Identification of the plastic by its symbol PET, PBT, PCT, PEN, PBN or TP for all such polyesters and copolyesters in general, in accordance with ISO 1043-1 (see 4.2). Data block 2: Position 1: Fillers or reinforcing materials and their nominal content (see 4.3).Position 2: Declaration of recycla
43、te (REC) plastics and their contents if desired. Data block 3: Position 1: Intended application and/or method of processing (see 4.4).Positions 2 to 8: Important properties, additives and supplementary information (see 4.4). Data block 4: Designatory properties (see 4.5). Data block 5: For the purpo
44、se of specifications, a fifth data block contains appropriate information (see 4.6).The first character of the individual item block shall be a hyphen. The five data blocks shall be separated from each other by a comma. If a data block is not used, this shall be indicated by doubling the separation
45、sign, i.e. by two commas (,). Terminal commas may be omitted.NOTE Data blocks 1 and 2, when separated by a hyphen, form the part marking symbol4.2 Data block 1In this data block, after the hyphen, thermoplastic polyesters are identified using the symbols and designations listed in Table 1 and Table
46、2.2 ISO 2017 All rights reservedBS EN ISO 20028-1:2017ISO 20028-1:2017(E)Table 1 Symbols indicating the chemical structure of polyester materials in data block 1SymbolaName and chemical identificationPET, TP 2TPoly(ethylene terephthalate): polyester based on ethylene glycol and terephthalic acid (or
47、 its ester).PTT, TP 3TPoly(trimethylene terephthalate): polyester based on 1,3-propanediol and terephthalic acid (or its ester).PBT, TP 4TPoly(butylene terephthalate): polyester based on 1,4-butanediol and terephthalic acid (or its ester).PCT, TP CHTPoly(cyclohexylenedimethylene terephthalate): poly
48、ester based on cyclohexanedimethanol and terephthalic acid (or its ester).PEN, TP 2NPoly(ethylene naphthalate): polyester based on ethylene glycol and 2,6-naphthalenedicarbo-xylic acid (or its ester).PBN, TP 4NPoly(butylene naphthalate): polyester based on 1,4-butanediol and 2,6-naphthalenedicarbo-x
49、ylic acid (or its ester).TP 26 Poly(ethylene adipate): polyester based on ethylene glycol and adipic acid.TP 4I Poly(butylene isophthalate): polyester based on 1,4-butanediol and isophthalic acid.TP CH10 Polyester based on cyclohexanedimethanol and sebacic acid.aSee Annex A (Designation of thermoplastic polyesters).Table 2 Symbols indicating the chemical structure of copolyester materials in data block 1 (examples)SymbolaChemical identificationTP 6I/6T Copolyester based on hexanediol, isophthalic acid and terephthalic acid
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