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Description of ASTM-D4195 2008ASTM D4195 - 08Standard Guide for Water Analysis for Reverse Osmosis and Nanofiltration ApplicationActive Standard ASTM D4195 | Developed by Subcommittee: D19.08 Book of Standards Volume: 11.02 ASTM D4195Significance and Use
The performance of RO or NF membranes is strongly influenced by the composition of the feed solution. Overall salt rejection is dependent upon the ratio of monovalent to polyvalent ions as well as the sum total of ions present. The permeate flow rate of RO or NF devices is also dependent upon the sum total of the ions present and the operating temperature, pressure, and recovery rate. Analyses and measurements performed in this guide will provide vital data for salt rejection and permeate flow projections of RO or NF systems for specific feedwaters. The recovery at which a RO or NF system can be safely operated is dependent upon the composition of the feed solution. The analyses and measurements performed inthis guide will provide data for the calculation of the maximum recovery of a RO or NF system for a given feed solution. The analyses and measurements performed in this guide will be of great assistance in determining the pretreatment requirements for a RO or NF system on a given feedwater. 1. Scope
1.1 This guide covers the analyses that should be performed on any given water sample if reverse osmosis (RO) or nanofiltration (NF) application is being considered. 1.2 This guide is applicable to waters including brackish waters and seawaters but is not necessarily applicable to waste waters. 1.3 This is a guide only and should not be construed as a delineation of all ions known to exist in waters. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. ASTM Standards D511 Test Methods for Calcium and Magnesium In Water D512 Test Methods for Chloride Ion In Water D513 Test Methods for Total and Dissolved Carbon Dioxide in Water D516 Test Method for Sulfate Ion in Water D857 Test Method for Aluminum in Water D858 Test Methods for Manganese in Water D859 Test Method for Silica in Water D888 Test Methods for Dissolved Oxygen in Water D1068 Test Methods for Iron in Water D1129 Terminology Relating to Water D1179 Test Methods for Fluoride Ion in Water D1253 Test Method for Residual Chlorine in Water D1293 Test Methods for pH of Water D1889 Test Method for Turbidity of Water D2579 Test Method for Total Organic Carbon in Water D3352 Test Method for Strontium Ion in Brackish Water, Seawater, and Brines D3370 Practices for Sampling Water from Closed Conduits D3561 Test Method for Lithium, Potassium, and Sodium Ions in Brackish Water, Seawater, and Brines by Atomic Absorption Spectrophotometry D3867 Test Methods for Nitrite-Nitrate in Water D4189 Test Method for Silt Density Index (SDI) of Water D4194 Test Methods for Operating Characteristics of Reverse Osmosis and Nanofiltration Devices D4382 Test Method for Barium in Water, Atomic Absorption Spectrophotometry, Graphite Furnace D6161 Terminology Used for Microfiltration, Ultrafiltration, Nanofiltration and Reverse Osmosis Membrane Processes Keywords nanofiltration; reverse osmosis; water analysis; Brackish water/brines; Coal products; Desalinating (reverse osmosis) devices; Flow and flow rate--water; Reverse osmosis (RO) installations; Seawater (natural/synthetic) DOI: 10.1520/D4195-08 ASTM D4195This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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