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ASTM D 4582 : 2023

Current

Current

The latest, up-to-date edition.

Standard Practice for Calculation and Adjustment of the Stiff and Davis Stability Index for Reverse Osmosis

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

19-07-2023

€56.53
Excluding VAT

Committee
D 19
DocumentType
Standard Practice
Pages
5
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This practice covers the calculation and adjustment of the Stiff and Davis Stability Index (S & DSI) 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 more than 10 000 mg/L of total dissolved solids. For concentrate streams containing less than 10 000 mg/L of total dissolved solids, refer to Practice D3739.

1.2The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.3This 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.

1.4This 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 D 3739 : 2019 Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
ASTM D 6161 : 2019 Standard Terminology Used for Microfiltration, Ultrafiltration, Nanofiltration, and Reverse Osmosis Membrane Processes

ASTM D 1129 : 2013 : R2020 : EDT 2 Standard Terminology Relating to Water
ASTM D 1129 : 2013 : R2020 : EDT 1 Standard Terminology Relating to Water

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