A general definition of Turbidity is the decrease in the transparency of a liquid caused by the presence of un-dissolved substances (ISO/EN7027). The definition of Turbidity Measurement can explained as where Solids are so finely dispersed in the liquid that they do not significantly settle even when allowed to stand for a long period of time.
![QT24082S Replacement Lamp](/img/cache/qt24082s-replacement-lamp-2-250x250.jpg)
Replacement Lamp Assembly for Infrared Light Models
QT21369S![QT24082S Replacement Lamp](/img/cache/qt24082s-replacement-lamp-250x250.jpg)
Replacement Lamp Assembly For White Light Models
QT24082S![ProCal Bottle](/img/cache/procal-bottle-2-250x250.jpg)
ProCal Calibration Kit 100 NTU, 125ml
QT39824![ProCal Bottle](/img/cache/procal-bottle-250x250.jpg)
ProCal Calibration Standard, 10 NTU, 125 mL
QT39825![ProCal_turbidity_standards](/img/cache/procal-turbidity-standards-4-250x250.jpg)
ProCal Calibratiion Kit, 0-4000NTU
QT39940![ProCal_turbidity_standards](/img/cache/procal-turbidity-standards-5-250x250.jpg)
ProCal Calibration Kit, 0-4000 NTU
QT39941![ProCal_turbidity_standards](/img/cache/procal-turbidity-standards-2-250x250.jpg)
ProCal Calibration Kit 0.02, 1 & 10 NTU
QT39950![ProCal_turbidity_standards](/img/cache/procal-turbidity-standards-3-250x250.jpg)
ProCal Calibration Kit 0.02, 10 & 100 NTU
QT39953![ProCal_turbidity_standards](/img/cache/procal-turbidity-standards-250x250.jpg)
ProCal Calibration Kit 0.02, 10 and 1000 NTU
QT39957![QT50051_Cuvettes3-PK](/img/cache/qt50051-cuvettes3-pk-250x250.jpg)