QC Standard 5 Back Catalog number: 52088 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 56065 Terbium (Tb) Price on request 8712.12-100-IO 2,2',3,3',4,4',5',6-Octachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 42740-50-1 Price on request 682134 4,4'-Dichlorobenzophenone, 100 µg/ml, Ethyl aceta Price on request