Fenuron, 10 µg/ml, Acetonitrile, 10ml

1,2,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

2-Ethoxyethanol, 1ml

ISO 15753 Alternatively: Standard solution of 16 EPA-PAHs may be used, but this mixture also contain acenaphtylene S-4470-100-T EPA (=S-4063-100-T) 100µg each/mL in toluene; unit: 1x1mL