EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70190 2-Fluorophenol Price on request 3761.17-K-AN Olanzapine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 132539-06-1 Price on request 678104 Prothiofos, 100 µg/ml, Acetonitrile, 1ml Price on request