Plastics - Recycled plastics - Determination of selected marker compounds in food grade recycled polyethylene terephthalate (PET)

This Technical Specification specifies an analytical method for testing food grade, recycled polyethylene terephthalate (PET). This analytical method provides / is intended to be used as a quality control check. This test identifies and quantifies certain specified contaminants. Such contaminants are referred to as Marker Compounds.
The analytical method is applicable for use on PET samples and products at all stages in the recycling process and will therefore be useful to recycling companies producing commercial, recycled PET for food contact materials and articles, and the manufacturers of such articles.
This Technical Specification is without prejudice to any existing legislation.
NOTE   Marker compounds are known to originate from two sources:
-   from the PET material itself (i.e. residual monomers, degradation products or reaction/breakdown products);
-   from food products that the PET has contacted during its first use.
WARNING: The use of this Technical Specification may involve hazardous materials, operations and equipment.
Persons using this Technical Specification should be familiar with normal laboratory practise. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practises and to ensure compliance with any national regulatory conditions.
IMPORTANT - It is absolutely essential that tests conducted according to this Technical Specification be carried out by suitably trained staff.

Kunststoffe - Kunststoff-Rezyklate - Bestimmung von Markierungsstoffen in Polyethylenterephthalat (PET)-Rezyklaten für die Lebensmittelindustrie

Diese Technische Spezifikation legt ein Analysenverfahren für die Prüfung von Polyethylen-terephthalat (PET) Rezyklat für die Lebensmittelindustrie fest. Dieses Analysenverfahren bietet eine Überprüfung der Qualitätskontrolle/ist zur Anwendung als eine Überprüfung der Qualitätskontrolle vorgesehen. Mit dieser Prüfung werden bestimmte festgelegte Kontaminanten identifiziert und quantitativ bestimmt. Derartige Kontaminanten werden als Markierungsstoffe bezeichnet.
Das Analysenverfahren gilt für die Anwendung an PET Proben und -Produkten auf allen Stufen des Recyclingprozesses und ist daher für Recyclingunternehmen nützlich, die handelsübliche PET Rezyklate für Materialien und Gegenstände, die mit Lebensmitteln in Berührung kommen, produzieren, sowie für die Hersteller derartiger Gegenstände.
Diese Technische Spezifikation hat keine Verbindlichkeit für die bestehende Gesetzgebung.
ANMERKUNG   Die Markierungsstoffe können ihren Ursprung aus zwei Quellen haben:
-   aus dem PET Material selbst (d. h. Restmonomere, Abbauprodukte oder Reaktions-/Zerfallsprodukte);
-   aus Lebensmitteln, mit denen PET bei seinem Erstgebrauch in Berührung kam.
WARNUNG Die Anwendung dieser Technischen Spezifikation kann den Umgang mit Gefahrstoffen, gefährlichen Tätigkeiten und Apparaturen einschließen.
Die Anwender dieser Technischen Spezifikation sollten mit der üblichen Laborpraxis vertraut sein. Dieses Dokument beabsichtigt nicht, sämtliche mit dessen Anwendung verbundenen Sicherheitsprobleme, soweit solche gegeben sind, anzusprechen. Es liegt in der Verantwortung des Anwenders, geeignete Maßnahmen für Gesundheits- und Arbeitsschutz zu ergreifen und deren Übereinstimmung mit sämtlichen nationalen gesetzlichen Vorschriften sicherzustellen.
WICHTIG : Es ist notwendig, dass Prüfungen nach dieser Technischen Spezifikation von entspre-chend qualifizierten Personen durchgeführt werden.

Plastiques - Plastiques recyclés - Détermination de compositions de traceurs sélectionnés dans les poly(téréphtalate d'éthylène) (PET) recyclés de qualité alimentaire

Polimerni materiali - Reciklirani polimerni materiali - Določevanje izbranih označevalcev spojin v hrani razreda recikliranega polietilenskega tereftalata (PET)

Ta tehnična specifikacija določa analizno metodo za preskušanje recikliranega polietilenskega tereftalata (PET), primernega za uporabo v prehrani. Ta analizna metoda zagotavlja/je namenjena uporabi v okviru kontrole kakovosti. Ta preskus določa in količinsko opredeljuje nekatera opredeljena onesnaževala. Takim onesnaževalom se reče označevalci spojin.
Analizna metoda je primerna za uporabo pri vzorcih in izdelkih iz PET v vseh fazah procesa recikliranja ter je zato koristna za reciklirna podjetja, ki proizvajajo komercialni reciklirani PET za materiale in izdelke, ki imajo stik z živili, ter za proizvajalce takih izdelkov.
Ta tehnična specifikacija ne posega v nobeno obstoječo zakonodajo.
OPOMBA: Označevalci spojin izhajajo iz dveh virov:
– iz samega materiala PET (tj. ostanki monomerov, razgradni produkti ali reakcijski/razpadni produkti);
– iz prehrambnih proizvodov, s katerimi je PET prišel v stik med prvo uporabo.
POZOR: Pri uporabi te tehnične specifikacije so lahko prisotni nevarni materiali, postopki in oprema.
Osebe, ki uporabljajo to tehnično specifikacijo, bi morale biti seznanjene z običajno laboratorijsko prakso. Ta dokument ne obravnava vseh morebitnih varnostnih težav, ki se nanašajo na njegovo uporabo. Za vzpostavitev ustreznih varnostnih in zdravstvenih praks ter za zagotovitev skladnosti z morebitnimi nacionalnimi regulativnimi pogoji je odgovoren uporabnik.
POMEMBNO: Bistvenega pomena je, da preskuse, ki se izvajajo v skladu s to tehnično specifikacijo, izvaja ustrezno usposobljeno osebje.

General Information

Status
Published
Publication Date
02-Jun-2015
Technical Committee
Current Stage
9093 - Decision to confirm - Review Enquiry
Completion Date
17-Apr-2022

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SLOVENSKI STANDARD
01-september-2015
3ROLPHUQLPDWHULDOL5HFLNOLUDQLSROLPHUQLPDWHULDOL'RORþHYDQMHL]EUDQLK
R]QDþHYDOFHYVSRMLQYKUDQLUD]UHGDUHFLNOLUDQHJDSROLHWLOHQVNHJDWHUHIWDODWD 3(7
Plastics - Recycled plastics - Determination of selected marker compounds in food grade
recycled polyethylene terephthalate (PET)
Kunststoffe - Kunststoff-Rezyklate - Bestimmung von Markierungsstoffen in
Polyethylenterephthalat (PET)-Rezyklaten für die Lebensmittelindustrie
Plastiques - Plastiques recyclés - Détermination de compositions de traceurs
sélectionnés dans les poly(téréphtalate d'éthylène) PET recyclés de qualité alimentaire
Ta slovenski standard je istoveten z: CEN/TS 16861:2015
ICS:
13.030.50 Recikliranje Recycling
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 16861
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
June 2015
ICS 13.030.50; 83.080.20
English Version
Plastics - Recycled plastics - Determination of selected marker
compounds in food grade recycled polyethylene terephthalate
(PET)
Plastiques - Plastiques recyclés - Détermination de Kunststoffe - Kunststoff-Rezyklate - Bestimmung von
compositions de traceurs sélectionnés dans les Markierungsstoffen in Polyethylenterephthalat (PET)-
poly(téréphtalate d'éthylène) (PET) recyclés de qualité Rezyklaten für die Lebensmittelindustrie
alimentaire
This Technical Specification (CEN/TS) was approved by CEN on 19 April 2015 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 16861:2015 E
worldwide for CEN national Members.

Contents Page
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 8
5 Principle . 8
6 Reagents . 8
6.1 Carrier gases for gas chromatography . 9
6.2 Solvent . 9
6.3 Standard solutions . 9
7 Apparatus . 9
7.1 Cryogenic mill . 9
7.2 Laboratory glassware . 9
7.3 Headspace gas chromatograph-mass spectrometer . 9
7.4 Capillary column . 9
7.5 Refrigerator and freezer . 9
7.6 Sieves . 10
7.7 Analytical balance . 10
8 Procedures . 10
8.1 Introduction . 10
8.2 Sample conservation . 10
8.3 Grinding of the PET samples. 10
8.3.1 General . 10
8.3.2 Initial preparation . 10
8.3.3 Cleaning of the cryogenic mill prior to use and in-between samples . 10
8.3.4 Cryogenic milling of the samples . 11
8.3.5 Sieving of ground samples . 11
8.4 Preparation of standard solutions . 11
8.4.1 General . 11
8.4.2 Stock solution A . 11
8.4.3 Stock solution B . 12
8.4.4 Spiking solution . 12
8.5 Blank determinations . 13
8.6 Preparation of sample vials . 13
8.7 Gas chromatographic analysis . 13
8.7.1 General . 13
8.7.2 Identification and quantification of analytes using the standard addition method . 13
9 Interference . 15
9.1 Interference during sampling and storage . 15
9.2 Interference due to co-elution . 15
10 Test report . 15
Annex A (informative) Representative chromatograms . 16
A.1 Total ion chromatogram of all six analytes . 16
A.2 Chromatograms of individual analytes in the selected ion monitoring mode . 16
Annex B (informative)  Example of instrument settings . 18
B.1 General . 18
B.2 Headspace sampler conditions . 18
B.3 Gas chromatography - mass spectrometry (GC-MS) – conditions . 19
B.4 Specific ions for selected ion mode (SIM) . 19
Annex C (informative)  Performance characteristics . 20
C.1 General . 20
C.2 Limit of detection . 20
C.3 Limit of quantification . 20
C.4 Precision . 21
C.5 Accuracy . 21
C.6 Linearity . 22
C.7 Validation results . 22
Bibliography . 23

Foreword
This document (CEN/TS 16861:2015) has been prepared by Technical Committee CEN/TC 249
“Plastics”, the secretariat of which is held by NBN.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to announce this Technical Specification: 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, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.
Introduction
In addition to drivers such as the recycling targets in the EU waste packaging Directive (94/62/EC)
and the economic cost of landfill taxes, there is a strong demand for recycled food grade plastic
products from packaging end-users who are concerned about their corporate image and promoting
their environmental responsibilities.
To ensure that recycling systems and plants used for recycling plastics from post-consumer waste for
food contact use are fit for purpose, the EU Commission published Regulation (EC) 282/2008 in
27th March 2008 (Recycled plastic materials and articles intended to come into contact with foods).
Two of the main purposes of Regulation (EC) 282/2008 are to define the conditions under which a
recycling process should be run and managed and how an application to EFSA (European Food
Safety Authority) to have the process authorized can be made. Even when plastics materials and
articles are produced using a recycling process which has been authorized by EFSA, it is essential
that they comply with the applicable food contact regulations, such as the Plastics Regulation (EU)
10/2011.
It can take a long time for validation to approve new recycling processes, and the “Challenge” test to
demonstrate the effectiveness of recycling processes, which is described in Regulation (EC) 282/2008
and ultimately required by EFSA, can be relatively expensive and time consuming. The analytical
method presented in this Technical Specification represents a novel, cost effective and relatively quick
quality assurance tool that would support new process development and assist organisations to
conform to the EC regulations on recycled plastics
...

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