Multi-Element Check Standard

Dichloromethane, in Certan bottle, neat, Solvent-neat, Unit 1ml, # of units-1, Cas.no. 75-09-2

PCB No. 189, 10µg/ml in Isooctane, 10ml

p-Xylene-d10, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 41051-88-1