EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677976 Disulfoton-sulfone, 100 µg/ml, Toluene, 1ml Price on request 20006 CLP Semi-Volatile Base/Neutral Surrogate Std Price on request 10367.19-100-ME Paroxetine-d6maleate Price on request