EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA17723600AC 1,3,5-Trichlorobenzene D3, 100 ng/µl, 1.1ml Price on request 14641.9-K-ME 4-Hydroxyamphetamine HCl, 1000µg/ml in MeOH, 1ml Price on request 676387 D3-Alachlor, 10mg Price on request