Turbidity Standard (100 NTU) Back Catalog number: 50385 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16065000 Phenylmercury-chloride, certified, 0.25g Price on request 93602 n-Hydrocarbon Mix #2 Price on request 97345 2,4-Dimethylaniline Price on request