A One Engineering Works

• Description

SDI Test Kit is a compact, lightweight unit suitable for monitoring the Silt Density Index Test Kit. Additionally, its portability makes it ideal for troubleshooting and routine monitoring of multiple Lab, Industrial RO Water systems.

Product Description:

The  Silt Density Index Test Kit is a measure for the fouling capacity of water in reverse osmosis systems. when subjected to a constant water pressure of 206.8 kPa (30 psi), the test measures the rate at which a 0.45-micrometer filter is plugged. The SDI Test Kit gives the percent drop per minute in the flow rate of the water through the filter. It’s averaged over a period of time such as 15 minutes.Manual SDI test kit contents-

• SS316, 47mm Filter Holder
• 45µm 47mm filter papers
• Pressure Gauge & Pressure Regulator
• On /Off Valve
• Stopwatch
• Measuring Beaker 500
• Forceps SS
• With Box
• Manual

Typically, In this Test Kit, spiral-wound reverse osmosis systems will need an SDI less than 5, and hollow fiber reverse osmosis systems will need an SDI less than 3. In these Systems, deep-well waters could be used straight from the source. The water will need to be filtered before use If it is fed from surface waters (with a typical SDI greater than 6).

It is a measurement of the fouling potential of suspended solids. It’s not measuring the quantity of a particular matter. Turbidity is used for a measurement of the number of suspended solids. They are not the same and there is no direct correlation between them.