EPA Method 8240A Mix #3

17-Hydroxypregnenolone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 387-79-1

C23 Tricyclic terpane Y1, neat, Solvent-neat, Unit ca. 5µg, # of units-2, Cas.no.

5H-Perfluoropentanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 376-72-7