1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 12418-1:2012Plastics Post-consumer poly(ethylene terephthalate) (PET) bottle recyclatesPart 1: Designation system and basis for specificationsBS ISO 12418-1:2012 BRITISH S
2、TANDARDNational forewordThis British Standard is the UK implementation of ISO 12418-1:2012. The UK participation in its preparation was entrusted to T e c h n i c a l Committee PRI/82, Thermoplastic materials.A list of organizations represented on this committee can be obtained on request to its sec
3、retary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 66136 5 ICS 83.080.20 Compliance with a British Standard cann
4、ot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 12418-1:2012 ISO 2012Plastics Post-consumer poly(ethylene tereph
5、thalate) (PET) bottle recyclates Part 1: Designation system and basis for specificationsPlastiques Recyclats de bouteilles en poly(trphtalate dthylne) (PET) post-consommation Partie 1: Systme de dsignation et base de spcificationINTERNATIONAL STANDARDISO12418-1First edition2012-09-01Reference number
6、ISO 12418-1:2012(E)BS ISO 12418-1:2012ISO 12418-1:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including pho
7、tocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in Switzerla
8、ndBS ISO 12418-1:2012ISO 12418-1:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references . 13 Designation system 23.1 General . 23.2 Data block 1 23.3 Data block 2 33.4 Data block 3 33.5 Data block 4 43.6 Data block 5 54 Example of a designation 5Bibliography
9、. 7BS ISO 12418-1:2012ISO 12418-1:2012(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 technical committees. Each member bo
10、dy 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 the International Electrot
11、echnical 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 International Standards adopted by
12、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 the subject of patent right
13、s. ISO shall not be held responsible for identifying any or all such patent rights.ISO 12418-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials.ISO 12418 consists of the following parts, under the general title Plastics Post-consumer poly(ethylene t
14、erephthalate) (PET) bottle recyclates: Part 1: Designation system and basis for specifications Part 2: Preparation of test specimens and determination of propertiesiv ISO 2012 All rights reservedBS ISO 12418-1:2012INTERNATIONAL STANDARD ISO 12418-1:2012(E)Plastics Post-consumer poly(ethylene terepht
15、halate) (PET) bottle recyclates Part 1: Designation system and basis for specifications1 Scope1.1 This part of ISO 12418 establishes a designation system for post-consumer poly(ethylene terephthalate) (PET) bottle recyclates, which may be used as the basis for specifications.1.2 The types of PET bot
16、tle recyclate are differentiated from each other by a classification system based on appropriate levels of the following designatory properties:a) intrinsic viscosity (IV);b) levels of contamination due to the label and other visible contaminants, PVC and polyolefins (and including adhesive);c) wate
17、r content;d) bulk density.Information regarding the intended application or method of processing will also assist in classification.1.3 This part of ISO 12418 is applicable to all PET bottle recyclates.It applies to materials ready for normal use in the form of powder, flakes or pellets.1.4 It is no
18、t intended to imply that materials having the same designation will give the same performance. This part of ISO 12418 does not provide engineering data or data on processing conditions which might be required to specify a material for a particular application and/or method of processing.If such addi
19、tional details 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 reproducible processing, additional requirements may be
20、 given in data block 5 (see 3.1).2 Normative referencesThe 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 (including any amendments) app
21、lies.ISO 12418-2:2012, Plastics Post-consumer poly(ethylene terephthalate) (PET) bottle recyclates Part 2: Preparation of test specimens and determination of propertiesISO 15270, Plastics Guidelines for the recovery and recycling of plastics waste ISO 2012 All rights reserved 1BS ISO 12418-1:2012ISO
22、 12418-1:2012(E)3 Designation system3.1 GeneralThe designation system for thermoplastics is based on the following standardized pattern:DesignationDescription block (optional)Identity blockInternational Standard number blockIndividual-item blockData block1Data block2Data block3Data block4Data block5
23、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 comprising the following in
24、formation: Data block 1: Position 1: Identification of the plastic by its abbreviated term (PET), in accordance with ISO 1043-1 (see 3.2.1).Position 2: The recycling process used (see 3.2.2).Position 3: The form of the product (see 3.2.3).Position 4: For products in flake or pellet form, the size of
25、 the flakes or pellets (see 3.2.4).Position 5: The filter opening used in the case of pellet extrusion (see 3.2.5). Data block 2: Filler or reinforcing material, its form and its content in the recyclate (see 3.3). Data block 3: Position 1: Intended application and/or method of processing (see 3.4).
26、Position 2: Information on food packaging (see 3.4).Position 3: Whether coloured or natural (see 3.4). Data block 4: Designatory properties (see 3.5). Data block 5: For the purpose of specifications, a fifth data block containing additional information may be added (see 3.6).The first character of t
27、he individual-item block shall be a hyphen.The 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 sign, i.e. by two commas (,).3.2 Data block 13.2.1 GeneralIn this data block, after the hyphen, poly(ethylene terep
28、hthalate) plastics are identified in position 1 by the symbol “PET”. Then, in positions 2 to 5 (see 3.2.2 to 3.2.5), information about the recycling process and the form of the product is given. The code-letters and code-numbers used are specified in Table 1.3.2.2 Recycling processIn position 2 of t
29、his data block, the recycling process is represented by code-letters in parentheses, as follows: (MRG) for general mechanical recycling, the meaning of mechanical recycling being as defined in ISO 15270;2 ISO 2012 All rights reservedBS ISO 12418-1:2012ISO 12418-1:2012(E) (MRA) for mechanical recycli
30、ng plus treatment with alkali; (MRP) for mechanical recycling plus treatment other than treatment with alkali, such as solid-phase polymerization or vacuum evaporation.3.2.3 Product formIn position 3 of this data block, the form of the product is represented by a code-letter, F, P or W.3.2.4 Size of
31、 flakes or pellets in productIn position 4 of this data block, the size of the flakes or pellets making up the product is represented by a code-letter, S, M or L.3.2.5 Filter openingIn position 5 of this data block, the filter opening in the case of pellet extrusion is represented by a two-figure co
32、de-number.Table 1 Code-letters and code-numbers used in data block 1Position 2 Position 3 Position 4Position 5 (in the case of pellets)Code-lettersRecycling process Code-letterProduct formCode-letterFlake sizeammPellet sizebmmCode-numberFilter openingm(MRG)General mechanical recyclingF Flakes S 5 2
33、35 35(MRA)Mechanical recycling + treatment with alkaliP Pellets M 5 but 2 but 35(MRP)Mechanical recycling + other treatmentcW Powder L 10 5 NOTE Solid-phase polymerization or vacuum evaporation treatment is a suitable additional process for MRP.aFlake size is given by the sieve mesh opening of the g
34、rinder.bPellet size is given by the die opening in the pelletizer and measured using a ruler or callipers.cIn addition to the usual mechanical recycling process, one or more physical and/or chemical processes, other than treatment with alkali, are used to improve the purity.3.3 Data block 2In this d
35、ata block, the type of filler and/or reinforcing material is normally represented by a single code-letter in position 1 and its physical form by a second code-letter in position 2. Subsequently (without a space), the mass content may be given by a two-figure code-number. In the case of general PET b
36、ottle recyclates, however, it is not permitted to add filler and/or reinforcing material intentionally. The recyclate content may be given by the code-letter R followed, without a space, by the mass content, the whole being placed between parentheses. For example, the fact that the PET contains no f
37、iller but 100% of recycled material would be indicated by (R100).3.4 Data block 3In this data block, information about the intended application and/or method of processing is given in position 1. Information on food packaging is given in position 2 and whether the product is coloured or natural is i
38、ndicated in position 3. The code-letters used are specified in Table 2. If no specific information is indicated, the letter X or the letters XX, depending on the position, shall be inserted (see Table 2). ISO 2012 All rights reserved 3BS ISO 12418-1:2012ISO 12418-1:2012(E)Table 2 Code-letters used i
39、n data block 3Position 1 Position 2 Position 3Code-letterIntended method of processingCode-lettersIntended applicationCode-letterColourBBlow moulding or injection mouldingFD Direct food contactaC ColouredEExtrusion of films or sheetsFI Indirect food contact N Natural (no colour added)F Fibre NF Non-
40、food application X No indication XX No indication X No indicationNOTE Examples of national and regional legislation on food contact are given in the Bibliography.aFood packaging shall meet the legal requirements for direct food contact of the country or region where it is to be used.3.5 Data block 4
41、3.5.1 GeneralIn this data block, the range of intrinsic viscosity (IV) is represented by a code-letter/number combination in position 1, the level of contamination due to the label and other visible contaminants by a code-letter/number combination in position 2, the level of contamination due to PVC
42、 by a code-letter/number combination in position 3, the level of contamination due to polyolefins (and including adhesive) by a code-letter/number combination in position 4, the water content by a code-letter/number combination in position 5 and the bulk density by a code-letter/number combination i
43、n position 6. The code-letter/number combinations used are specified in Table 3.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 either side of, the limit because of manufacturing
44、 tolerances, the designation is not affected.NOTE Not all combinations of the values of the designatory properties are provided by currently available polymers.Table 3 Code-letters/numbers used in data block 4Position 1 Position 2 Position 3 Position 4 Position 5 Position 6Code Intrinsic viscosityCo
45、ntamination level (only for flakes) mg/kgCode Water contentCode Bulk densitydl/gCodeLabel and similarCode PVC CodePoly-olefins% kg/m3IV10 1,0 L02 20 V02 20 O02 20 W1 1,0 D1 400IV08 0,8 but 20 but 100V10 20 but 100O10 20 but 100W2 1,0 but 300 but 100 but 300V30 100 but 300O30 100 but 300W9 1,5 D9 300
46、IV06 0,6 but 300 V99 300 O99 300IV00 0,63.5.2 Intrinsic viscosityThe intrinsic viscosity (IV) shall be determined either in accordance with the method given in Table 1 of ISO 12418-2:2012 or from the melt volume-flow rate (MVR) determined in accordance with Annex C of ISO 12418-2:2012, using the con
47、version equation given in that annex.4 ISO 2012 All rights reservedBS ISO 12418-1:2012ISO 12418-1:2012(E)The possible values of the intrinsic viscosity are divided into five ranges, each represented by a code-letter/number combination as specified in Table 3.3.5.3 Contamination due to the label and
48、other visible contaminants, PVC and polyolefinsThe level of contamination due to the label and other visible contaminants, PVC and polyolefins (including adhesive) shall be determined in accordance with ISO 12418-2.The possible contamination levels are divided into four ranges, each represented by a
49、 code-letter/number combination as specified in Table 3.3.5.4 Water contentThe water content shall be determined in accordance with ISO 12418-2.3.5.5 Bulk densityThe bulk density shall be determined in accordance with ISO 12418-2.3.6 Data block 5Indication of additional requirements in this optional data block is a way of transforming the designation of a material into a specification for a particular application. This may be done for example by reference to a suitable nation
