Turbidity Standard (400 NTU) Back Catalog number: 54122 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93988 PAH Standard, 1000µg/ml in methylene chloride, 1ml Price on request 678390 Dicofol, 100 µg/ml, Acetonitrile, 5ml Price on request 15060-10CY5 PCB - Mix 8, 10µg/ml in Cyclohexane, 5ml Price on request