EPA Method 200.8 Calibration Standard 2

3,3’-Dichlorobenzidine

Metformin hydrochloride, 100 µg/ml, Methanol, 1m

Arochlor 1242 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 53469-21-9