EPA Method 8121 Surrogate Standard Back Catalog number: 81204 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BRP-4 4-Bromophenol, 1.2ml x 100ug/ml, toluene Price on request 683827 Sulfoxaflor Metabolite X11719474, 10mg Price on request C14744000 Mandestrobin, 10mg Price on request