EPA Method 6020/6020A - Mix B Back Catalog number: 52331 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11782.10 1,2,4,6,7-Pentachloronaphthalene,,,, Price on request 11443.21-100-IO Tris-p-tolyl phosphate-d21,100 µg/mL,isooctane,1mL, Price on request BDE-189 2,3,3',4,4',5,5'-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request