EPA Method 531.1 - Analytes Back Catalog number: 30042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2826.12-50-ME n-Perfluorododecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 307-55-1 Price on request 58077 Iridium (Ir) Price on request 73530 1,3-Diisopropylbenzene Price on request