BASF
Raleigh, NC

U.S. Department of Energy
Environmental Measurements Laboratory
201 Varick Street, New York, NY 10014-4811 
Phone: (212)620-6247

W. R. Grace & Co. - Conn.
Washington Research Center
7379 Route 32
Columbia, MD 21044
Phone: 410-531-4783  Fax: 410-531-4652

Goodyear Tire & Rubber Company
Analytical Services - Dept 415B
142 Goodyear Boulevard
Akron, OH 44305 U.S.A.                  
Phone: (330)796-8309  Fax: (330)796-7060

Analytica of Branford, Inc.
29 Businness Park Drive
Branford, Connecticut 06405
Phone: 203-488-8899  FAX: 203-481-0433

Ciba-Geigy Corp.
Analytical Research
444 Saw Mill River Road
Ardsley, NY 10502-2699
phone: 914-478-4561  FAX: 914-479-2996

Bristol-Myers Squibb
Stamford, CT
Phone: 203-357-5065  FAX: 203-348-3267