EPA 1620 Standard 4

Custom mix AZO standards, each component 0.10mg/ml in methanol: 2783.12 4-Aminodipenyl 1773.12 Benzidine 2763.7 4-Chloro-o-toluidine 1780.0 2-Naphthylamine 2765.6 4-Chloroaniline 2784.7 2,4-Diaminoanisole 2762.13 4,4’-Methylenedianiline 2

EPA Method 8250

Phorate-oxon-sulfone, 100µg/ml in Acetonitrile, 5m