AirClean Systems
3248 Lake Woodard Drive
Raleigh North Carolina 27604
Tel: (800) 849-0472
Fax (919) 255-6120
email: info@aircleansystems.com

Eco Chemie B.V.
P.O. Box 85163
3508 AD Utrecht, The Netherlands
Tel: +31 30 2893154
Fax: +31 30 2880715
e-mail: autolab@ecochemie.nl

LabChem
200 William Pitt Wa
Pittsburgh, PA 15238
Tel : 412-826-5230
Fax: 412-826-5234
e-mail: info@labchem.net

Metrohm Ltd
CH-9101 Herisau, Switzerland
Tel: +41 71 353 85 85
Fax: +41 71 353 89 01
e-mail:info@metrohm.com

Metrohm-Peak
12521 Gulf Freeway
Houston, TX 77034
Tel: 800-410-7118
Fax: 281-484-5000
e- mail: info@mp-ic.com

Sigma-Alrich Laborchemikalien GmbH
P.O.Box 10 02 62
D-30918 Seelze, Germany
Tel: +49-(0)5137-8238 0
Fax: +49-(0)5137-8238 120
e-mail: riedel@sial.com

VELP Scientifica srl
via Stazione 16
20040 Usmate (Milano) Italy
Tel: +39 039 62 88 11
e-mail: inse@velp.it

Yamato
2-1-6, Nihonbashi Honcho
Chuo-ku, Tokyo, 103-8432 Japan
Tel : +81-3-3231-1124
Fax: +81-3-3231-1144
e-mail: english-website@yamato-net.co.jp