EPA Method 551.1 Performance Check Soln

3,3-Dichlorobiphenyl (BZ-11)

2-n-Pentyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147793-32-3

3,4-Dimethylheptane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 922-28-1