Calibration Standards Set Back Catalog number: 53016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98453 Organophosporus Pesticides Price on request 79055 Cypermethrin Price on request 11741.12-100-IO 2,2',3,4,5,6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request