EPA Method 508 - Performance Check Solution

IP 391-95 Performance Standard 4 Analytes, each Wt.% as listed in n-Heptane; units: 1x5mL, 5x5mL Cyclohexane 10.0 mg/mL o-Xylene 5.0mg/mL Dibenzothiophene 0.5mg/mL 9-Methylan

Picloram

D5-Propachlor ESA sodium salt, 5mg