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Silt Density Index Testers

Silt Density Index Testers

SDI TEST KITS (SILT DENSITY INDEX TEST KITS)

Suspended solids and colloidal materials in feed water are one of the biggest problems in reverse osmosis systems. Although most systems have some pretreatment, including 5-micron prefilters, these fine particles are responsible for the fouling of RO (reverse osmosis) membranes. In order to measure the degree of this fouling problem, a concept called Silt Density Index or SDI is used. Here filtration rates are calculated by exposing a 0.45-micron filter to the feed water under pressure. With WaterAnywhere's SDI test kits, you can get a clear measure of the degree of suspended solids and colloidal materials you have in your feed water.

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