EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682328 Diheptyl phthalate (mixture of isomers), 1000mg Price on request 81505 Dalapon methyl ester Price on request 70462 1,3-Dimethyl-2-nitrobenzene Price on request