ASTM D4472-08(2014)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D4472 −08 (Reapproved 2014)
Standard Guide for
Recordkeeping for Reverse Osmosis and Nanofiltration
Systems
This standard is issued under the fixed designation D4472; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D1889 Test Method for Turbidity of Water (Withdrawn
2007)
1.1 This guide covers procedures for well-defined record-
D3739 Practice for Calculation and Adjustment of the
keeping of reverse osmosis (RO) and nanofiltration (NF)
Langelier Saturation Index for Reverse Osmosis
systems.
D4189 Test Method for Silt Density Index (SDI) of Water
1.2 This guide includes a start-up report, recordkeeping of
D4194 Test Methods for Operating Characteristics of Re-
RO and NF operating data, recordkeeping of pretreatment
verse Osmosis and Nanofiltration Devices
operating data, and a maintenance log.
D4195 Guide for Water Analysis for Reverse Osmosis and
1.3 This guide is applicable to waters including brackish Nanofiltration Application
D4582 Practice for Calculation and Adjustment of the Stiff
waters and seawaters but is not necessarily applicable to
wastewaters. and Davis Stability Index for Reverse Osmosis
D6161 Terminology Used for Microfiltration, Ultrafiltration,
1.4 The values stated in SI units are to be regarded as
Nanofiltration and Reverse Osmosis Membrane Processes
standard. No other units of measurement are included in this
standard.
3. Terminology
1.5 This standard does not purport to address all of the
3.1 Definitions—For definitions of terms used in this guide,
safety concerns, if any, associated with its use. It is the
refer to Terminology D1129 and D6161.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
4.1 Proper operation and maintenance of RO and NF
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard- systems are key factors in obtaining successful performance.
ization established in the Decision on Principles for the This guide provides the necessary input for the evaluation of
Development of International Standards, Guides and Recom- the performance of the RO and NF systems, the pretreatment
mendations issued by the World Trade Organization Technical system, and the mechanical equipment in the plant.
Barriers to Trade (TBT) Committee.
4.2 This guide is for general guidance only and must not be
used in place of the operating manual for a particular plant.
2. Referenced Documents
4.3 Site-dependent factors prevent specific recommenda-
2.1 ASTM Standards:
tions for all recordkeeping. Thus, only the more general
D1125 Test Methods for Electrical Conductivity and Resis-
recordkeeping is covered by this guide.
tivity of Water
4.4 This guide can be used for both brackish and seawater
D1129 Terminology Relating to Water
systems which contain either spiral-wound or hollow-fiber
D1253 Test Method for Residual Chlorine in Water
devices.
5. Procedure
This guide is under the jurisdiction of ASTM Committee D19 on Water and is
the direct responsibility of Subcommittee D19.08 on Membranes and Ion Exchange
5.1 Start-Up Report:
Materials.
5.1.1 Provide a complete description of the RO or NF plant.
Current edition approved Jan. 1, 2014. Published March 2014. Originally
approved in 1985. Last previous edition approved in 2008 as D4472 – 08. DOI: This can be done by using a flow diagram and equipment,
10.1520/D4472-08R14.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
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D4472−08 (2014)
instrumentation, and material lists to show water source, 5.2.13 Obtain the chloride ion and conductivity of the feed,
pretreatment system, RO or NF configuration, and posttreat- permeate, and brine for each stage twice a week.
ment system. 5.2.14 The recommended frequency of data collection is
5.1.2 Record initial performance of RO or NF and pretreat- given in Table 1.
ment systems as provided in 5.2 and 5.3, respectively.
5.3 Pretreatment Operating Data:
5.1.3 Calibrate all gauges and meters based on manufactur-
5.3.1 Record the operating characteristics of the pretreat-
ers’ recommendations.
ment equipment. Since pretreatment is site dependent, specific
5.2 RO or NF Operating Data (see D4194): recommendations for all record keeping cannot be given.
5.2.1 Record the permeate and brine flows of each stage in
NOTE 2—Unless known to be completely absent, measure the concen-
the RO or NF
...