EPA Method 515.1 Internal Standard Back Catalog number: 30023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8822.12-5MG 2,2',3,3',4,5',6,6'-Octachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 40186-71-8 Price on request 684390 4,4'-DDT, 100 µg/ml, Cyclohexane, 1ml Price on request 11910.4-K-ME Morpholine,1000 µg/mL,MeOH,1mL, Price on request