EPA Method 502/524 Fortification Solution Back Catalog number: 33005 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-F40 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request X9090 1,3-Dinitrobenzene Price on request 1536.18-K-TX5 m-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 17714-84-0 Price on request