Compound Certified Reference Value Compound Certified Reference Valueµg/g µg/gNaphthalene . (1.47 ± 1.05) Chrysene/Triphenylene . (2.15 ± 0.86) Acenaphthylene . (0.12 ± 0.02) Benzo(b)fluoranthene. 2.48 ± 0.43Acenaphthene. (0.20 ± 0.04) Benzo(k