EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684440 Diafenthiuron methaneimidamide, 100 µg/ml, Aceton Price on request S-4673-100-T Custom Mix of ketoPAHs, 3 compounds in toluene, 100ug/ml each 1684.17 1-Benzanthrone 9683.14 Anthrone 2322.16 9-fluorene Price on request MBDE-79 3,3',4,5'-Tetrabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane Price on request