ASTM D-4815 Calibration Mix #2

9-n-Butylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 10394-57-7

Forchlorfenuron, 10.0 µg/ml, Acetonitrile, 10ml

4-Ethylguaiacol