Custom mix of PAHs and alkyl PAHs 0712.11 1-Methylnaphthalene 0728.12 2,3-Dimethylnaphthalene 0706.13 2,3,5-Trimethylnaphthalene 0341.12 Biphenyl 0811.15 1-Methylphenanthrene 0350.14 1-Methylfluorene 0352.15 9-Ethylfluorene 0884.12 Dibenzothiophene