EPA Method 525 - Perchlorinates

Phenanthrene-d10, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1517-22-2

Di-p-tolylphenyl phosphate-d14 (p-tolyl-d7),100 µg/mL,isooctane,1mL,

n-Octadecane, ?13C: -30.71, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 593-45-3