Verification II Standard 1

Internal Standard for GC-analysis of PAH compounds 4 Analytes, each 500 µg/mL in dichloromethane; units:1x5mL 0393.12 1-Phenylhexane [1077-16-3] 0728.12 2,3-Dimethylnaphthalene [581-40-8] 0768.16 3,6-D

Sulfur (S)

1,2,3,4,5,6,7-Heptachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane