ASTM-D4993 2003

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D4993-89(2003) Standard Practice for Calculation and Adjustment of Silica (SiO₂) Scaling for Reverse Osmosis

Published By	Publication Date	Number of Pages
ASTM	2003	3

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Categories: 71.060.20 - Oxides, ASTM

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Description

ASTM D4993-89-Reapproved2003

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 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

ICS Code

ICS Number Code 71.060.20 (Oxides)

DOI: 10.1520/D4993-89R03

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

Additional information

Standard Title	D4993-89(2003) Standard Practice for Calculation and Adjustment of Silica (SiO<sub>2</sub>) Scaling for Reverse Osmosis
Published Code	ASTM
Publication Date	2003
Pages Count	3
ICS Codes	71.060.20 - Oxides