EPA Method 8040 - Surrogate Standard Back Catalog number: 80403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50407 Custom Standard Price on request 8221.7-100-AN Mevinphos, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 7786-34-7 Price on request 83572 2,4-D Price on request