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ASTM D4993

2008 Edition, May 1, 2008

Complete Document

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

Includes all amendments and changes through Reapproval Notice , 2014


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Product Details:

  • Revision: 2008 Edition, May 1, 2008
  • Published Date: January 2014
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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).

This practice is applicable to both brackish waters and seawaters.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.