EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-31 2,4',5-Trichloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 59577 pH 5.0 Standard @ 25°C Price on request 680131 Cyenopyrafen, 25mg Price on request