Massachusetts APH Standard Back Catalog number: 94496 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50638 0.10 N KMnO4 Standard Soln. Price on request 10404.4-50MG O,O-Diethylhydrogenphosphate Price on request 2662.10-100-AN Chlordane Price on request