EPA Method 525 - Semi-Volatile Mixture Back Catalog number: 30128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32271 1,2-Dichloropropane Price on request X9055 4,4’-DDE Price on request 0243.24-200-T Dibenzo[a,l]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 191-30-0 Price on request