ASTM D3739-06
Historical Standard: ASTM D3739-06 Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
SUPERSEDED (see Active link, below)
ASTM D3739
1. Scope
1.1 This practice covers the calculation and adjustment of the Langelier saturation index for the concentrate stream of a reverse osmosis device. This index is used to determine the need for calcium carbonate scale control in the operation and design of reverse osmosis installations. This practice is applicable for concentrate streams containing xx 10 to 10 000 mg/L of total dissolved solids. For concentrate containing over 10 000 mg/L see Practice D 4582.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D511 Test Methods for Calcium and Magnesium In Water
D1067 Test Methods for Acidity or Alkalinity of Water
D1129 Terminology Relating to Water
D1293 Test Methods for pH of Water
D1888 Methods Of Test for Particulate and Dissolved Matter in Water
D4194 Test Methods for Operating Characteristics of Reverse Osmosis and Nanofiltration Devices
D4195 Guide for Water Analysis for Reverse Osmosis and Nanofiltration Application
D4582 Practice for Calculation and Adjustment of the Stiff and Davis Stability Index for Reverse Osmosis
D6161 Terminology Used for Microfiltration, Ultrafiltration, Nanofiltration and Reverse Osmosis Membrane Processes
Keywords
CaCO 3 scale; Langelier Saturationndex; LSI; reverse osmosis; scaling; Calcium carbonate (CaCO 3 ) scaling properties; Desalinating (reverse osmosis) devices; Langelier saturation index; Reverse osmosis (RO) installations; Water analysis ;
ICS Code
ICS Number Code 07.030 (Physics. Chemistry)
DOI: 10.1520/D3739-06
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