Turbidity Standard (400 NTU) Back Catalog number: 54122 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A637890 Mixture of (-)-Angustifoline and Isoangustifoline Price on request 59283 Sodium (Na) Price on request 90298 Naphthalene, 2000µg/mL in MeOH, 1ml Price on request