EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70673 Ethephon Price on request MBP-208 2,2',3,3',4,5,5',6,6'-Nonachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 11192.21-10MG Trifluoperazine dihydrochloride,neat,neat,10mg Price on request