QC Standard 1 Back Catalog number: 53084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 58183 Bismuth (Bi) Price on request 11737.12-100-IO 2,2',3,3',5,6'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 678995 Tefluthrin, 100 µg/ml, Toluene, 1ml Price on request