WS Trace Elements #1

2,3',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-72-6

Acetochlor-ethane sulfonic acid (ESA) sodium, 10mg

TCLP - Pesticide Spiking Standard