EPA Method 515.1 - Performance Check Solution

Endosulfan-I-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 203645-57-2

Phloroglucinol, 100 µg/ml, Methanol, 1ml

PCB 118, 100 µg/ml, Isooctane, 1ml