ASTM International - ASTM D4993-89(1998)e1

Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis

historical
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Organization: ASTM International
Publication Date: 10 December 1998
Status: historical
Page Count: 3
ICS Code (Oxides): 71.060.20
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 may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.

Document History

January 1, 2014
Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
5.1 In the design and operation of reverse osmosis installations, it is important to predict the SiO2 scaling properties of the concentrate stream. Because of the increase in the concentration of...
May 1, 2008
Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
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...
June 10, 2003
Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
In the design and operation of reverse osmosis installations, it is important to predict the SiO2 scaling properties of the concentrate stream. Because of the increase in the concentration of SiO2...
ASTM D4993-89(1998)e1
December 10, 1998
Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
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...
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