Lovibond® Water Testing Tintometer® Group

Silt Density Index

The Silt Density Index (SDI) is a measure of the solids or particulate content of water and is of specific importance when commissioning reverse osmosis plant. The SDI of the feedwater is require to calculate membrane fouling time, backwash frequency and, ultimately, membrane lifespan.

Product Name


Test Name


Silt Density Index

Test Kit

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