ASTM D3739-94(2003)

Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis

STANDARD published on 10.6.2003

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The information about the standard:

Designation standards: ASTM D3739-94(2003)
Note: WITHDRAWN
Publication date standards: 10.6.2003
SKU: NS-24668
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D3739-94(2003) :

Keywords:

CaCO3 scale, Langelier saturation index, LSI, reverse osmosis, scaling

Additional information

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 up to 10 000 mg/L of total dissolved solids.

1.2 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

D511-14(2021)e1	Standard Test Methods for Calcium and Magnesium In Water (Includes all amendments and changes 12/6/2021).
D1067-16(2024)	Standard Test Methods for Acidity or Alkalinity of Water
D1129-24	Standard Terminology Relating to Water
D1293-18	Standard Test Methods for pH of Water
D1888-78	Methods of Test for Particulate and Dissolved Matter in Water (Withdrawn 1989)
D4194-23	Standard Test Methods for Operating Characteristics of Reverse Osmosis and Nanofiltration Devices
D4195-23	Standard Guide for Water Analysis for Reverse Osmosis and Nanofiltration Application
D4582-23	Standard Practice for Calculation and Adjustment of the Stiff and Davis Stability Index for Reverse Osmosis
D6161-19	Standard Terminology Used for Microfiltration, Ultrafiltration, Nanofiltration, and Reverse Osmosis Membrane Processes

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