1、February 2008DEUTSCHE NORM English price group 9No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.030.50; 83.080.20!$
2、L=L“1412641www.din.deDDIN EN 15342Plastics Recycled Plastics Characterization of polystyrene (PS) recyclatesEnglish version of DIN EN 15342:2008-02Kunststoffe Kunststoff-Rezyklate Charakterisierung von Polystyrol (PS)-RezyklatenEnglische Fassung DIN EN 15342:2008-02www.beuth.deDocument comprises 14
3、pagesDIN EN 15342:2008-02 2 National foreword This standard has been prepared by Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Technical Committee NA 0
4、54-01-06 AA Kunststoffverwertung. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15342December 2007ICS 83.080.20; 13.030.50English VersionPlastics - Recycled Plastics - Characterization of polystyrene(PS) recyclatesPlastiques - Plastiques recycls - Caractrisation desrecyclats de polystyrne (PS)Ku
5、nststoffe - Kunststoff-Rezyklate - Charakterisierung vonPolystyrol (PS)-RezyklatenThis European Standard was approved by CEN on 25 October 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a na
6、tional standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in
7、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 theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Est
8、onia, 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISC
9、HES 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 national Members.Ref. No. EN 15342:2007: EEN 15342:2007 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative referenc
10、es 5 3 Terms, definitions and abbreviated terms 6 4 Characterisation of PS recyclates6 5 Quality assurance7 Annex A (normative) 9 Bibliography 12 DIN EN 15342:2008-02 EN 15342:2007 (E) 3 Foreword This document (EN 15342:2007 ) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secre
11、tariat 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, and conflicting national standards shall be withdrawn at the latest by June 2008. Attention is drawn to t
12、he 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 standard is one part of series of CEN publications on Plastics Recycling which is structured as follows:
13、 EN 15342 PlasticsRecycled PlasticsCharacterization of polystyrene (PS) recyclates EN 15343 PlasticsRecycled PlasticsPlastics recycling traceability and assessment of conformity and recycled content EN 15344 PlasticsRecycled PlasticsCharacterisation of Polyethylene (PE) recyclates EN 15345 PlasticsR
14、ecycled PlasticsCharacterisation of Polypropylene (PP) recyclates EN 15346 PlasticsRecycled plasticsCharacterisation of poly(vinyl chloride) (PVC) recyclates EN 15347 Plastics Recycled Plastics Characterisation of plastics wastes EN 15348 PlasticsRecycled plasticsCharacterization of poly(ethylene te
15、rephthalate) (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 national standards organizations of the following countries are bound to implement this European Standard: Au
16、stria, 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, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN
17、15342:2008-02 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 emissions into air, water and soil as well as any impacts on human health. The environmen
18、tal 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 environmental option for treating the available waste, some prerequisites should preferably
19、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 industrial recycling operation; collection and sorting schemes should be properly design
20、ed 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 society. This standard has been produced in accordance with the guidance produced by CEN
21、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 aspects which are specific to the recycling process. It is often impossible to trace b
22、ack 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 that during this period contamination with other materials may occur that could affect
23、 the products suitability for recycling into the intended application. DIN EN 15342:2008-02 EN 15342:2007 (E) 5 1 Scope This European Standard defines a method of specifying delivery condition characteristics for polystyrene (PS) recyclates. It gives the most important characteristics and associated
24、 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 specific and general applications. This standard does not cover the c
25、haracterisation 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. For dated references, only the edition cited applies. For und
26、ated 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 Determination of flexural properties (ISO 178:2001) EN ISO 179-1, P
27、lastics 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, Plastics Determination of Izod impact strength (ISO 180:2000) EN ISO
28、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 principles (ISO 527-1:1993 including Corr 1:1994) EN ISO 527-2, Plast
29、ics 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 (MVR) of thermoplastics (ISO 1133:2005) EN ISO 3451-1, Plastic
30、s 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 1183-1:2004) CEN/TR 15353:2007, Plastics Recycled plastics Guidelines for
31、 the development of standards for recycled plastics DIN EN 15342:2008-02 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. The abbreviated terms are given in EN IS
32、O 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, are given in Table 1, and are divided int
33、o 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 polystyrene-containing, plastics wastes for recyclin
34、g 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 etc., and there may even be other non-styr
35、enic 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 the recyclate properties. These character
36、istics 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 provided by the supplier to the purchaser on
37、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 about the material composition of the recycl
38、ate, as specified by the purchaser. DIN EN 15342:2008-02 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 flow rate g/10 min EN
39、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 O Bulk density Kg/m3
40、See 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 reinforcements, heat and light s
41、tabilisers 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: required characteristic
42、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 product, the supplie
43、r 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 deviation or range o
44、f values within and between batches of material shall be agreed between the supplier and the purchaser. DIN EN 15342:2008-02 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. DIN EN 15342:2008-02 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 volu
48、me, of loose material (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.
49、 Knowledge of bulk density 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
