EN 15342-2007 en Plastics - Recycled Plastics - Characterization of polystyrene (PS) recyclates《塑料 再生塑料 聚苯乙烯(PS)回收再生材料的特性》.pdf

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1、BRITISH STANDARDBS EN 15342:2007Plastics Recycled Plastics Characterization of polystyrene (PS) recyclatesICS 13.030.50; 83.080.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g5

2、1g60g53g44g42g43g55g3g47g36g58BS EN 15342:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 53971 8National forewordThis British Standard is the UK implementation of EN 15342:2007.The UK participation

3、in its preparation was entrusted to Technical Committee PRI/89, Plastics recycling.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its

4、correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15342December 2007ICS 83.080.20; 13.030.50English VersionPlastics - Recycled Plastics - Ch

5、aracterization of polystyrene(PS) recyclatesPlastiques - Plastiques recycls - Caractrisation desrecyclats de polystyrne (PS)Kunststoffe - Kunststoff-Rezyklate - Charakterisierung vonPolystyrol (PS)-RezyklatenThis European Standard was approved by CEN on 25 October 2007.CEN members are bound to compl

6、y with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management

7、 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theoffic

8、ial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Sloven

9、ia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN nation

10、al Members.Ref. No. EN 15342:2007: EEN 15342:2007 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms, definitions and abbreviated terms 6 4 Characterisation of PS recyclates6 5 Quality assurance7 Annex A (normative) 9 Bibliography 12 EN 15342:2007 (E) 3 Foreword

11、 This document (EN 15342:2007 ) has been prepared by 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 June 2008,

12、and conflicting national standards shall be withdrawn at the latest by June 2008. 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

13、 standard is one part of series of CEN publications on Plastics Recycling which is structured as follows: EN 15342 PlasticsRecycled PlasticsCharacterization of polystyrene (PS) recyclates EN 15343 PlasticsRecycled PlasticsPlastics recycling traceability and assessment of conformity and recycled cont

14、ent EN 15344 PlasticsRecycled PlasticsCharacterisation of Polyethylene (PE) recyclates EN 15345 PlasticsRecycled PlasticsCharacterisation of Polypropylene (PP) recyclates EN 15346 PlasticsRecycled plasticsCharacterisation of poly(vinyl chloride) (PVC) recyclates EN 15347 Plastics Recycled Plastics C

15、haracterisation of plastics wastes EN 15348 PlasticsRecycled plasticsCharacterization of poly(ethylene terephthalate) (PET) recyclates CEN/TR 15353 Plastics Recycled plastics Guidelines for the development of standards for recycled plastics According to the CEN/CENELEC Internal Regulations, the nati

16、onal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

17、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15342:2007 (E) 4 Introduction Recycling of plastics waste is one type of material recovery process intended to save resources (virgin raw materials, water, and energy), while minimising harmful emiss

18、ions into air, water and soil as well as any impacts on human health. The environmental impact of recycling has to be assessed over the whole life cycle of the recycling system (from the waste generation point to the disposal of final residues). To ensure that recycling constitutes the best environm

19、ental option for treating the available waste, some prerequisites should preferably be met: recycling scheme being contemplated should generate lower environmental impacts than alternative recovery options; existing or potential market outlets should be identified that will secure a sustainable indu

20、strial recycling operation; collection and sorting schemes should be properly designed to deliver recyclable plastics waste fractions fitting reasonably well with the available recycling technologies and with the (changing) needs of the identified market outlets, preferably at minimum costs to socie

21、ty. This standard has been produced in accordance with the guidance produced by CEN on Environmental Aspects and in accordance with CEN/TR 15353, Plastics - Recycled plastics - Guidelines for the development of standards for recycled plastics. NOTE CEN/TR 15353 considers the general environmental as

22、pects which are specific to the recycling process. It is often impossible to trace back each individual product at the end user stage and to check whether the product has been used correctly through its life. Consequently products are out of industrial control for a period of time. It is possible th

23、at during this period contamination with other materials may occur that could affect the products suitability for recycling into the intended application. EN 15342:2007 (E) 5 1 Scope This European Standard defines a method of specifying delivery condition characteristics for polystyrene (PS) recycla

24、tes. It gives the most important characteristics and associated test methods for assessing a single batch of PS recyclates intended for use in the production of semi-finished/finished products. It is intended to support parties involved in the use of recycled PS to agree on specifications for specif

25、ic and general applications. This standard does not cover the characterisation of plastics wastes. See EN 15347. This standard is applicable without prejudice to any existing legislation. 2 Normative references The following referenced documents are indispensable for the application of this document

26、. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12099, Plastics piping systems Polyethylene piping materials and components Determination of volatile content EN ISO 178, Plastics Dete

27、rmination of flexural properties (ISO 178:2001) EN ISO 179-1, Plastics Determination of Charpy impact properties Part 1: Non-instrumented impact test (ISO 179-1:2000) EN ISO 179-2, Plastics Determination of Charpy impact properties Part 2: Instrumented impact test (ISO 179-2:1997) EN ISO 180, Plasti

28、cs Determination of Izod impact strength (ISO 180:2000) EN ISO 306, Plastics Thermoplastic materials Determination of Vicat softening temperature (VST) (ISO 306:2004) EN ISO 472:2001, Plastics Vocabulary (ISO 472:1999) EN ISO 527-1, Plastics Determination of tensile properties Part 1: General princi

29、ples (ISO 527-1:1993 including Corr 1:1994) EN ISO 527-2, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994) EN ISO 1133, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate

30、 (MVR) of thermoplastics (ISO 1133:2005) EN ISO 3451-1, Plastics Determination of ash Part 1: General Methods (ISO 3451-1:1997) EN ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1:200

31、4) CEN/TR 15353:2007, Plastics Recycled plastics Guidelines for the development of standards for recycled plastics EN 15342:2007 (E) 6 3 Terms, definitions and abbreviated terms For the purposes of this European Standard, the terms and definitions given in EN ISO 472:2001 and CEN/TR 15353:2007 apply

32、. The abbreviated terms are given in EN ISO 1043-1:2001. 4 Characterisation of PS recyclates A single batch is the quantity of recyclate that has homogeneous characteristics within the specified tolerances. The characteristics of PS recyclates, which shall be determined for every batch of recyclate,

33、 are given in Table 1, and are divided into two types: Required characteristics, needed to define PS recyclates in general, and required for all recyclates. Optional characteristics, needed to define PS recyclates according to customer specifications and applications. NOTE Polystyrene, or polystyren

34、e-containing, plastics wastes for recycling may contain a variety of styrenic polymers, such as General Purpose (crystal or expanded) PS, and Impact-modified PS (usually containing grafted rubber particles). There may also be copolymers containing -methyl styrene, butadiene, isoprene, acrylonitrile

35、etc., and there may even be other non-styrenic polymers. The properties and performance of recyclates derived from such wastes will depend on the relative proportions of those polymers. Some of these copolymers (MBS, SAN for example) are not miscible with polystyrene, and can have adverse effects on

36、 the recyclate properties. These characteristics shall be assessed using the test methods given in Table 1. Where possible, the supplier should provide information on the original application of the material. A Certificate of Analysis, giving the test results for each batch of recyclate shall be pro

37、vided by the supplier to the purchaser on request. The polystyrene content of the recyclate may be measured by a method agreed between the parties, who will also agree the required level of polystyrene. To secure the legal use of the recyclate, the supplier shall provide the necessary information ab

38、out the material composition of the recyclate, as specified by the purchaser. EN 15342:2007 (E) 7 Table 1 Characterisation of PS recyclates Characteristic UnitTest method PS PS-I Comment Required Colour Visual inspection X X Impact strengthkJ/m2 EN ISO 179-1, EN ISO 179-2 or EN ISO 180 X Melt mass f

39、low rate g/10 min EN ISO 1133 Condition H X X Particle size determination mm X X Using a method appropriate to the particle type and size rangeShape VisualX X For example, ground, micronized, pellets, flakes. Vicat softening temperature C EN ISO 306 Method A X X Optional Ash content% EN ISO 3451-1 O

40、 O Bulk density Kg/m3See Annex A O O Density Kg/m3EN ISO 1183-1, Method A O O Filtration level m Mesh size O O Flexural modulus MPa EN ISO 178 O O Original application Supplier to declare O O Presence of modifying additivesSupplier to declare O O For example, fire retardants, fillers and reinforceme

41、nts, heat and light stabilisers etc.Residual Humidity % EN 12099O O Although the scope of EN 12099 is limited, it is considered relevant Tensile stress at yield MPa EN ISO 527-1 EN ISO 527-2 O O Tensile strain at break % EN ISO 527-1 EN ISO 527-2 O O Volatile Content% Weight loss at 200 C O O X: req

42、uired characteristic to be quantified. O: optional characteristic to be quantified. NOTE Other tests may be carried out by agreement between the purchaser and the supplier and the results reported. 5 Quality assurance To ensure the purchaser of the recyclate may have confidence in the quality of the

43、 product, the supplier shall maintain records of the quality control carried out, including incoming materials, processes and finished products. NOTE 1 A quality management system certified to EN ISO 9001 may be a suitable guarantee of consistent recyclate quality. The specification and the standard

44、 deviation or range of values within and between batches of material shall be agreed between the supplier and the purchaser. EN 15342:2007 (E) 8 Where a statement of recycled content, or the previous history of the material, is requested, documentary evidence shall be provided, where there is no ana

45、lytical method available to supply such information. These records should be available to the purchaser on request. Where a recyclate has been produced via a melt process, the supplier may choose to state the level of filtration applied during that process. This will determine the maximum size of an

46、y non-melting contaminants present in the recyclate. The statement of filtration level shall include details of the filter. Recyclates that have not passed through a melt process cannot be quantified in the same way, and the supplier may state this. NOTE 2 EN 15343 describes a qualified recycling pr

47、ocess and gives details of traceability and the assessment of recycled content. EN 15342:2007 (E) 9 Annex A (normative) Test Method for the determination of bulk density A.1 Scope This test method specifies a method of determining the bulk density, i.e. the mass per unit of volume, of loose material

48、 (powder or granular material) that can be poured from a funnel of specific design. When the method is applied to relatively coarse materials rather variable results may be obtained, owing to the error introduced when a straightedge blade is drawn across the top of the cylinder. Knowledge of bulk de

49、nsity is of limited value in estimating the relative fluffiness or bulk of moulding materials, unless their densities in the moulded condition are approximately the same. It therefore gives a fairly good idea of stability of mixing, presence of humidity and stability between batches (consistency). Key 1 Volume of approximately 2 500 ml, diameter of hole at base 55 mm 0,25 mm 2 Inner height: 200 mm 0,2 mm, Inner diameter: 113 mm 0,2 mm, Volume: 2 000 ml 3 Angle approximate