EPA Method 526 Surrogate Standard Back Catalog number: 93187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96517 Chlordiazepoxide Price on request 673779 2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5 Price on request MBP-MXE Mass-Labelled PCB Solution/Mixture, 1.2ml, nonane Price on request