EPA Method 507 - Performance Check Solution

4-Methylphenol, 100 µg/ml, Acetonitrile, 1ml

Merphos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 150-50-5

Hexabromobenzene, 250mg