Apéndice 9.1 Algunos proveedores de materiales de referencia certificados y patrones

1. Materiales de referencia certificados
European Commission Joint Research Centre Institute for Reference Materials and Measurements Retieseweg 111 B-2440 Geel BELGIQUE	Tél.: +32 (0)14 571 211 Fax: +32 (0)14 584 273
International Atomic Energy Agency Wagrainerstrasse 5 PO Box 100 A-1400 VIENNA AUSTRIA	Tel: 431 2360 Fax: 431 234564 Telex: 1-12645
National Institute for Standards and Technology Standard Reference Materials Programme Room 2014, Building 202 GAITHERSBURG, Maryland 20899 USA	Tel: 301-9756776 Fax: 301-9483730
Reference Materials Advisory Service Laboratory of the Government Chemist Queens Road TEDDINGTON, Middlesex TW11 01Y ENGLAND, UK	Tel: 81-943-7565 Fax: 81-942-2767
National Research Council of Canada Marine Analytical Chemistry Standards Programme Division of Chemistry OTTAWA CANADA K1A OR6	Tel: 613-993-2359 Fax: 613-993-2451
National Institute of Environmental Studies Japan Environmental Agency PO Yatabe Tsukuba IBARAKI, -305 JAPAN	Tel.: 298-51-6111
2. Proveedores especializados de patrones
Prochem Ltd PO Box 255 ST.ALBANS, Herts AL1 4LN ENGLAND, UK	(Análisis de residuos de plaguicidas) Tel: 727-833847 Fax: 727-43395
Prochem GmbH Postf 1246 D-4230 WESEL GERMANY	(Análisis de macroelemementos de microelementos y de oligoelemontos Tel.: 281-530081
British Greyhound Chromatography and Allied Chemicals Grange Road West BIRKENHEAD Merseyside L43 4XF ENGLAND, UK	(Análisis de plaguicidas contaminantes ambientales Tel: 51-653-3232 Fax: 51-639-1846
Supelchem Ltd Supelco Chromatography Supplies Shire Hill SAFFROM WALDEN, Essex CB11 3AZ ENGLAND, UK	Análisis ambientales, PCB, micotoxinas, patrones relacionados con alimentos) Tel: 799513288 Fax: 799 513283
Supelco Supelco Park BELAFONTE, Pa, 16823-0048 USA	Tel: 800-2476628 Fax: 814-3593044