Turbidity Standard (100 NTU) Back Catalog number: 50385 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C20750000 1,2-Dimethylnaphthalene, certified, 50mg Price on request 1511.9-K-IO 2,3-Dihydro-2-methylbenzofuran, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1746-11-8 Price on request 63198 2,2',3,3',4,5,5',6-Octachlorobiphenyl Price on request