Calibration Standard Mix 2 Back Catalog number: 52044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676879 2,4-D-butyl ester, 250mg Price on request 11755.12-100-IO 2,2',3,3',4,4',6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 20219 CLP Pesticide Mix “B” Price on request