EPA Method 8260B Surrogate Standard Back Catalog number: 23012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96549 Methaqualone Price on request 3494.11-100-CY Propoxur Price on request 676132 Butachlor, 100 µg/ml, Acetonitrile, 5ml Price on request