There are several Aroclor mixtures (including 1254) listed in the
Environmental Standards section, p.1864, of the 1996 Sigma catalog.
Best of results,
Dr. Charles A. Miller, rellim at mailhost.tcs.tulane.edu
Dept. Environmental Health Sciences, SL29
Room 374, Center for Bioenvironmental Research
Tulane Univ. School of Public Health and Tropical Medicine
1430 Tulane Ave.
New Orleans, LA 70112