EPA Method 8141 Surrogate Standard Back Catalog number: 92387 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673538 4,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml Price on request 10346.18-25MG Duloxetine hydrochloride Price on request 50297 0.020 N Sodium Hydroxide Price on request