EPA Method 8141/1657 Surrogate Standard Back Catalog number: 92357 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91140 Phenacetin Price on request 673391 Monocrotophos, 100 µg/ml, Acetonitrile, 5ml Price on request 8588.9 6-Fluorothio-4-chromanone, , Solvent-, Unit , # of units-, Cas.no. 21243-18-5 Price on request