Turbidity (100 NTU) Back Catalog number: 50639 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended GA09000978IO EN 12766/CEN EN 61619 PCB Mix, 10µg/mL in Isooctane, 1ml Price on request 675818 Terbumeton, 10.0 µg/ml, Methanol, 10ml Price on request 672814 Atrazine, 250mg Price on request