EPA Method 507 Analyte Mix #8 Back Catalog number: 94131 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72114 Use Part# 79326 tert-Butyl hydroquinone (TBHQ) Price on request 0013.16-100-T 1,3-Dinitropyrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 75321-20-9 Price on request 678496 Pyrifenox, 100 µg/ml, Acetonitrile, 1ml Price on request