EPA Method 507 - Performance Check Solution

3-Methylphenanthro[3,4-c]phenanthrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 83844-21-7

2-tert-Butyl-4-methylphenol, 100mg

5ß(H)-Pregnane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 481-26-5