ASTM-D4993 2008
$35.75
D4993-08 Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
| Published By | Publication Date | Number of Pages |
| ASTM | 2008 | 3 |
ASTM D4993-08
Historical Standard: Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
ASTM D4993
Scope
1.1 This practice covers the calculation and adjustment of silica (SiO2) 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.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
fouling; reverse osmosis; scaling; silica; solubility; Brackish water/brines; Concentration (of elements); Reverse osmosis (RO) installations; Scale control; Seawater (natural/synthetic); Silica; Silica (SiO2) scaling propoerties
ICS Code
ICS Number Code 71.060.20 (Oxides)
DOI: 10.1520/D4993-08
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Scope Referenced Documents Terminology Summary of Practice Significance and Use Procedure |
| 2 | Calculation Adjustments for Scale Control FIG. 1 FIG. 2 |
| 3 | Reverse Osmosis in Operation Use of Computers for the Determination of Scaling Potential Keywords |
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