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Design, production and certification of synthetic polymer referencematerial for multi-element analysis

Objective

Currently, and in support of the industrial development phase, production control and quality management, the European polymer industry needs to determine more than 60 elements in polymer material, in concentrations ranging from percent down to the ng/kg level. For the European polymer industry alone, this consitutes an estimated annual cost of about 50 MECU. These analyses reflect the determination of additives, catalytic residues and contaminants in a polymer material. To improve the accuracy and precision of the currently used analytical measurement protocols, certified reference materials (CRMs) are an ideal tool. However, CRMs of this type are lacking. Furthermore, from an environmental point of view, the lack of suitable CRMs for heavy element determination impedes the effective implementation of the EC Directive 94/62 concerning plastics packaging and packaging material. This directive regulates the amount of heavy metals (Cd, Cr, Hg and Pb) in plastics and was issued in December 1994.

The objective of the project is the production and certification of a set of CRMs to be used for element analysis, more specifically the production and certification of one set of two consumable synthetic polymer reference materials consisting of a polyolefinic base material doped with Cd, Cr, Hg and Pb at two levels of concentrations, namely ca. 100 mg/kg for each element (except Hg at ca. 10 mg/kg) and ca. 10 mg/kg for each element (except Hg at ca. 1 mg/kg). Furthermore, the material will be doped with an certified for As, S, Cl and Br. In addition, an intercomparison of analytical methods used for the determination of the above elements in polymer material will be organised among European laboratories; European polymer manufacturers will participate in this project.
The primary material has been designed, produced, tested for its homogeneity and stability and has been shipped to the laboratories participating in the interlaboratory study of which the results were discussed in a technical meeting in November 1997.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

DSM Research BV
Address
1,
6160 MD Geleen
Netherlands

Participants (16)

Basf AG
Germany
Address

67056 Ludwigshafen
Bundesanstalt für Materialforschung und Materialprüfung
Germany
Address
5,Rudower Chaussee
12489 Berlin
COMMISSION OF THE EUROPEAN COMMUNITIES
Belgium
Address
Retieseweg
2440 Geel
Cq BVBA
Belgium
Address
60,Kapeldreef 60
3001 Heverlee
INSTITUTO TECNOLOGICO E NUCLEAR
Portugal
Address
10,Estrada Nacional 10
2685 Sacavem
Imperial Chemical Industries plc (ICI)
United Kingdom
Address

TS6 8JE Middlesbrough
LGC LIMITED
United Kingdom
Address
Queens Road
TW11 0LY Teddington
Laboratoire Fédéral d'Essai des Matériaux et de Recherches
Switzerland
Address
11,Unterstrasse 11
9001 St. Gallen
Laboratoire National d'Essais
France
Address
1,Rue Gaston Boissier 1
75724 Paris
Mikroanalytisches Labor Pascher
Germany
Address
3,An Der Pulvermühle 3
53424 Remagen
Neste Oy
Finland
Address

6101 Porvoo
Netherlands Energy Research Foundation
Netherlands
Address

1755 LE Petten
Procter and Gamble European TechnicalCentre NV
Belgium
Address
100,Temselaan 100
1853 Stombeek-bever
Risø National Laboratory
Denmark
Address
399,Frederiksborgvej 399
4000 Roskilde
Universiteit Gent
Belgium
Address
86,Proeftuinstraat 86
9000 Gent
Universität Regensburg
Germany
Address
31,Universitätstrasse 31
93040 Regensburg