EPA Method 531.1 - Analytes

2-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7469-77-4

Trichlorfon, 100 µg/ml, Acetonitrile, 5ml

4-Methyl-1H-benzotriazole, 100µg/ml in AL, 5ml