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Significance and Use
4.1 The need to understand the relationships found in membrane unit processes for water treatment increases with the continuing demand for these separation systems. Defining the terms common to microfiltration, ultrafiltration, nanofiltration, and reverse osmosis processes assist the manufacturer, consultant, and end-user in eliminating inter-process terminology confusion. This standard expands the definitions found in Terminology .
1.1 This terminology covers the use of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis for membrane separation processes.
1.2 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1129 Terminology Relating to Water
D2035 Practice for Coagulation-Flocculation Jar Test of Water
D3739 Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis
D4582 Practice for Calculation and Adjustment of the Stiff and Davis Stability Index for Reverse Osmosis
ICS Number Code 01.040.17 (Metrology and measurement. Physical phenomena (Vocabularies)); 17.060 (Measurement of volume, mass, density, viscosity)
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ASTM D6161-19, Standard Terminology Used for Microfiltration, Ultrafiltration, Nanofiltration, and Reverse Osmosis Membrane Processes, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top