Turbidity (400 NTU) Back Catalog number: 50384 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2904.12-5MG 2,4,4',5-Tetrachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 32690-93-0 Price on request 1028.16-500-IO 9-Ethylphenanthrene,500µg/mL,isooctane,1mL, Price on request 70065 trans-Chlordane Price on request