EPA Method 602/8020 Back Catalog number: 19197 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9431.21 cis-Permethrin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 61949-76-6 Price on request 677747 4-Ethylguaiacol, 1ml Price on request 2125.12-100-IOX5 Arochlor 1221 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11104-28-2 Price on request