EPA Method 515/8150/1658 Herbicides Back Catalog number: 31196 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673576 Etofenprox, 100 µg/ml, Ethyl acetate, 5ml Price on request L429-SS Method 429 Surrogate Standard, 100µg/ml in Isooctane/10% toluene, 1,2ml Price on request 70099 4,4’-DDD Price on request