EPA Method 6020/6020A - Mix B Back Catalog number: 52331 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83548 Formaldehyde-DNPH Price on request 677915 Mefenacet, 100 µg/ml, Acetonitrile, 1ml Price on request 2652.12-50-IO 2,2',3,4,4',5,6-Heptabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 189084-67-1 Price on request