1、BRITISH STANDARDBS EN ISO 7391-1:2006Plastics Polycarbonate (PC) moulding and extrusion materials Part 1: Designation system and basis for specificationsThe European Standard EN ISO 7391-1:2006 has the status of a British StandardICS 83.080.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37
2、g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 7391-1:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2006 BSI 2006ISBN 0 5
3、80 48058 5National forewordThis British Standard is the official English language version of EN ISO 7391-1:2006. It is identical with ISO 7391-1:2006. It supersedes BS EN ISO 7391-1:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/82, Thermopla
4、stic materials, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalog
5、ue under the section entitled “International Standards Correspondence Index”, or by using the “Search” 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 correc
6、t 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 informed;
7、 monitor related international and European developments and promulgate them in the UK.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 7 and a back cover.The BSI copyright no
8、tice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 7391-1March 2006ICS 83.080.20 Supersedes EN ISO 7391-1:1999 English VersionPlastics - Polycarbonate (PC) moulding
9、 and extrusion materials -Part 1: Designation system and basis for specifications (ISO7391-1:2006)Plastiques - Polycarbonate (PC) pour moulage et extrusion- Partie 1: Systme de dsignation et base de spcification(ISO 7391-1:2006)Kunststoffe - Polycarbonat (PC)-Formmassen - Teil 1:Bezeichnungssystem u
10、nd Basis fr Spezifikationen (ISO7391-1:2006)This European Standard was approved by CEN on 9 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration
11、. 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 official versions (English, French, German). A version in any other language made by translationun
12、der 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, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Icel
13、and, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stas
14、sart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 7391-1:2006: EForeword This document (EN ISO 7391-1:2006) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical
15、 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 the latest by September 2006, and conflicting national standards shall be withdrawn at
16、the latest by September 2006. This document supersedes EN ISO 7391-1:1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Fin
17、land, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 7391-1:2006 has been approved by CEN as EN ISO
18、7391-1:2006 without any modifications. EN ISO 7391-1:2006Reference numberISO 7391-1:2006(E)INTERNATIONAL STANDARD ISO7391-1Third edition2006-03-01Plastics Polycarbonate (PC) moulding and extrusion materials Part 1: Designation system and basis for specifications Plastiques Polycarbonate (PC) pour mo
19、ulage et extrusion Partie 1: Systme de dsignation et base de spcification EN ISO 7391-1:2006ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Designation system 2 3.1 General. 2 3.2 Data block 1. 2 3.3 Data block 2. 2 3.4 Data block 3. 3 3.4.1 General. 3 3.4.2 Viscosity number
20、 3 3.4.3 Melt volume-flow rate . 4 3.4.4 Charpy impact strength 4 3.5 Data block 4. 5 3.6 Data block 5. 5 4 Examples of designations . 6 4.1 Designation only. 6 4.2 Designation transformed into a specification . 7 EN ISO 7391-1:2006iv Foreword ISO (the International Organization for Standardization)
21、 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 has been established has the right to be repre
22、sented 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 electrotechnical standardization. International Standards are
23、 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 bodies for voting. Publication as an Internationa
24、l 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 or all such patent rights. ISO 7391-1 was pre
25、pared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. This third edition cancels and replaces the second edition (ISO 7391-1:1996), which has been technically revised. ISO 7391 consists of the following parts, under the general title Plastics Polycarbonate (PC
26、) moulding and extrusion materials: Part 1: Designation system and basis for specifications Part 2: Preparation of test specimens and determination of properties EN ISO 7391-1:20061Plastics Polycarbonate (PC) moulding and extrusion materials Part 1: Designation system and basis for specifications 1
27、Scope 1.1 This part of ISO 7391 establishes a system of designation for polycarbonate thermoplastic material, which may be used as the basis for specifications. 1.2 The types of polycarbonate plastic are differentiated from each other by a classification system based on appropriate levels of the des
28、ignatory properties a) viscosity number; b) melt volume-flow rate; c) Charpy impact strength; and on information about the intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials. 1.3 This part of ISO 7391 is applicable to therm
29、oplastic polyesters of carbonic acid and aromatic dihydroxy compounds. The polyester may be a homopolymer, a copolymer or a mixture of the two. It applies to materials ready for normal use in the form of powder, granules or pellets and to materials unmodified or modified by colorants, additives, fil
30、lers, etc. 1.4 It is not intended to imply that materials having the same designation give necessarily the same performance. This part of ISO 7391 does not provide engineering data, performance data or data on processing conditions which may be required to specify a material for a particular applica
31、tion and/or method of processing. If such additional properties are required, they shall be determined in accordance with the test methods specified in Part 2 of this International Standard, if suitable. 1.5 In order to specify a thermoplastic material for a particular application or to ensure repro
32、ducible processing, additional requirements may be given in data block 5 (see 3.1). 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 th
33、e referenced document (including any amendments) applies. ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics EN ISO 7391-1:20062 ISO 7391-2, Plastics Polycarbonate (PC) moulding and extrusion materials Part 2: Preparation of test specimens and
34、 determination of properties 3 Designation system 3.1 General The designation system for thermoplastics is based on the following standard pattern: Designation Identity block Individual-item block Description block (optional) International Standard number block Data block 1 Data block 2 Data block 3
35、 Data block 4 Data block 5 The designation consists 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
36、comprising the following information: Data block 1: Identification of the plastic by its symbol PC in accordance with ISO 1043-1 (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 informatio
37、n (see 3.3). Data block 3: Designatory properties (see 3.4). Data block 4: Fillers or reinforcing 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. The first character of the individual-i
38、tem block shall be a hyphen. The data blocks shall be separated from each other by commas. If a data block is not used, this shall be indicated by doubling the separation sign, i.e. by two commas (,). 3.2 Data block 1 In this data block, after the hyphen, polycarbonate plastics are identified by the
39、 symbol “PC”, in accordance with ISO 1043-1. 3.3 Data 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 Tab
40、le 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. EN ISO 7391-1:20063Table 1 Code-letters used in data block 2 Code-letter Position 1 Code-letter Positions 2 to 8 A Processing stabilized B Blow moul
41、ding B Antiblocking C Coloured D Disc manufacture E Extrusion E Expandable F Extrusion of films F Special burning characteristics G General use G Granules H Coating H Heat ageing stabilized L Monofilament extrusion L Light or weather stabilized M Injection moulding N Natural (no colour added) P Impa
42、ct modified Q Compression moulding R Rotational moulding R Mould release agent S Sintering S Lubricated T Tape manufacture T Transparent V Thermoforming W Stabilized against hydrolysis X No indication X Crosslinkable Y Increased electrical conductivity Z Antistatic 3.4 Data block 3 3.4.1 General In
43、this data block, the range of the viscosity number is represented by a two-figure code-number (see 3.4.2), the range of the melt volume-flow rate by a two-figure code-number (see 3.4.3) and the range of the Charpy impact strength by a single-figure code-number (see 3.4.4). The code-numbers are separ
44、ated from each other by hyphens. If a property value falls on or near a range limit, the manufacturer shall state which range will designate the material. If subsequent individual test values lie on, or on either side of, the limit because of manufacturing tolerances, the designation is not affected
45、. NOTE Not all combinations of the values of the designatory properties have to be provided for currently available polymers. 3.4.2 Viscosity number The viscosity number shall be determined in accordance with ISO 7391-2. The possible values of the viscosity number are divided into six ranges, each r
46、epresented by a two-figure code-number as specified in Table 2. EN ISO 7391-1:20064 Table 2 Ranges of viscosity number in data block 3 Code-number Range of viscosity number cm3/g 46 u 46 49 ! 46 but u 52 55 ! 52 but u 58 61 ! 58 but u 64 67 ! 64 but u 70 70 ! 70 NOTE Viscosity number will be cancell
47、ed from the designation system at the next five-year revision of this part of ISO 7391. 3.4.3 Melt volume-flow rate The melt volume-flow rate (MVR) shall be determined in accordance with ISO 7391-2. The possible values of melt volume-flow rate are divided into five ranges, each represented by a two-
48、figure code-number as specified in Table 3. Table 3 Ranges of melt volume-flow rate in data block 3 Code-number Range of melt volume-flow rate (MVR) cm3/10 min 03 u 2,8 05 ! 2,8 but u 5,7 09 ! 5,7 but u 11,4 18 ! 11,4 but u 22,7 24 ! 22,7 3.4.4 Charpy impact strength The Charpy impact strength (unno
49、tched) shall be determined in accordance with ISO 7391-2. The possible values of Charpy impact strength are divided into six ranges, each represented by a single-figure code-number as specified in Table 4. Table 4 Ranges of Charpy impact strength in data block 3 Code-number Range of Charpy impact strength (unnotched) kJ/m20 u 10 1 ! 10 but u 30 3 ! 30 but u 50 5 ! 50 but u 70 7 ! 70 but u 90 9 ! 90 EN ISO 7391-1:200653.5 Data block 4 In this data block, the type of filler and/or reinforcing material
