EPA Method 507/525 Analytes Mix #4 Back Catalog number: 30085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10684.12-100-IO 2,3',5',6-Tetrachlorobiphenyl Price on request 681181 Pyrimidifen, 100 µg/ml, Acetonitrile, 1ml Price on request 0701.13-500-IO 1,2,4-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2717-42-2 Price on request