Acids Calibration Level 4 Back Catalog number: 94841 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BDE-183 2,2',3,4,4',5',6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 673378 Methomyl, 10.0 µg/ml, Acetonitrile, 10ml Price on request 679798 Lincomycin hydrochloride monohydrate, 100 µg/ml, Price on request