EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83580 Acifluorfen Price on request D453000-500MG rac 3,4-Dihydroxymandelic Acid, 500mg Price on request 95167 Aroclor 1260 Price on request