ASTM-D4692 › Historical Revision Information
Standard Practice for Calculation and Adjustment of Sulfate Scaling Salts (CaSO4, SrSO4, and BaSO4) for Reverse Osmosis and Nanofiltration
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1.1 This practice covers the calculation and adjustment of calcium, strontium, and barium sulfates for the concentrate stream of a reverse-osmosis system. The calculations are used to determine the need for scale control in the operation and design of reverse-osmosis installations. This practice is applicable for all types of reverse osmosis devices (tubular, spiral wound, and hollow fiber).
1.2 This practice is applicable to both brackish waters and seawaters.
barium; calcium, membrane fouling; membrane scaling; nanofiltration; reverse osmosis; strontium; sulfate scaling; ICS Number Code 71.120.99 (Other equipment for the chemical industry)
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71.120.99 (Other equipment for the chemical industry)
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June 10, 2001