Perfluoro-n-[1,2-13C2]hexadecanoic acid, 50µg/ml in MeOH, 1,2ml

EPA Method 500 Series Internal Std #4

Dibenzothiophene in Xylene Units: 5x1mL ampoule, 1x10mL screw cap bottle Chiron No. (Matrix) Concentration Isooctane Xylene White oil 3 cst µgS/g (ppm) Wt.% S-4055-0-IO S-4054-0-XY S

Dinoseb methyl ether, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 6099-79-2