EPA Method 525.2 Standard Back Catalog number: 92693 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12063.11-100-AN Isoprocarb,100 µg/mL,acetonitrile,1mL Price on request 1712.12-100-IO 4-Fluorobiphenyl Price on request 14055.21-100-ME (±)-11-OH-Δ9-THC-d3, 100µg/ml in MeOH, 1ml Price on request