ASTM D3739-19 PDF

Scope: 1.1 This practice covers the calculation and adjustment of the Langelier saturation index for the concentrate stream of a reverse osmosis (RO) device. This index is used to determine the need for calcium carbonate (CaCo3) scale control in the operation and design of RO installations. This practice is applicable for concentrate streams containing 10 to 10 000 mg/L of total dissolved solids. For concentrate containing over 10 000 mg ⁄L, see Practice D4582. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D3739-19 Referenced Document

ASTM D1067 Standard Test Methods for Acidity or Alkalinity of Water
ASTM D1129 Standard Terminology Relating to Water
ASTM D1293 Standard Test Methods for pH of Water
ASTM D1888 Methods of Test for Particulate and Dissolved Matter in Water
ASTM D4194 Standard Test Methods for Operating Characteristics of Reverse Osmosis Devices
ASTM D4195 Standard Guide for Water Analysis for Reverse Osmosis Application
ASTM D4582 Standard Practice for Calculation and Adjustment of the Stiff and Davis Stability Index for Reverse Osmosis
ASTM D511 Standard Test Methods for Calcium and Magnesium In Water
ASTM D6161 Standard Terminology Used for Crossflow Microfiltration, Ultrafiltration, Nanofiltration, and Reverse Osmosis Membrane Processes

2019 ASTM D3739-19 Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
2006 ASTM D3739-06(2010) Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
2006 ASTM D3739-06 Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
2005 ASTM D3739-05 Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
2003 ASTM D3739-94(2003) Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
1998 ASTM D3739-94(1998) Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis