EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96426 PCB Congeners Price on request 0706.13-500-IO 2,3,5-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2245-38-7 Price on request MBDE-3 4-Bromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane Price on request