ASTM D4472-89(2003)
(Guide)Standard Guide for Recordkeeping for Reverse Osmosis Systems
Standard Guide for Recordkeeping for Reverse Osmosis Systems
SCOPE
1.1 This guide covers procedures for well-defined recordkeeping of reverse osmosis (RO) systems.
1.2 This guide includes a start-up report, recordkeeping of RO operating data, recordkeeping of pretreatment operating data, and a maintenance log.
1.3 This guide is applicable to waters including brackish waters and seawaters but is not necessarily applicable to wastewaters.
1.4 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.
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Designation:D4472–89(Reapproved2003)
Standard Guide for
Recordkeeping for Reverse Osmosis Systems
This standard is issued under the fixed designation D 4472; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.2 Definitions of Terms Specific to This Standard: For
description of terms relating to RO, refer to Practice D 3739
1.1 This guide covers procedures for well-defined record-
and Test Methods D 4194.
keeping of reverse osmosis (RO) systems.
1.2 This guide includes a start-up report, recordkeeping of
4. Significance and Use
RO operating data, recordkeeping of pretreatment operating
4.1 Proper operation and maintenance of an RO system are
data, and a maintenance log.
key factors in obtaining successful performance. This guide
1.3 This guide is applicable to waters including brackish
provides the necessary input for the evaluation of the perfor-
waters and seawaters but is not necessarily applicable to
mance of the RO system, the pretreatment system, and the
wastewaters.
mechanical equipment in the plant.
1.4 This standard does not purport to address all of the
4.2 This guide is for general guidance only and must not be
safety concerns, if any, associated with its use. It is the
used in place of the operating manual for a particular plant.
responsibility of the user of this standard to establish appro-
4.3 Site-dependent factors prevent specific recommenda-
priate safety and health practices and determine the applica-
tions for all recordkeeping. Thus, only the more general
bility of regulatory limitations prior to use.
recordkeeping is covered by this guide.
2. Referenced Documents 4.4 This guide can be used for both brackish and seawater
systems which contain either spiral-wound or hollow-fiber
2.1 ASTM Standards:
devices.
D 1125 Test Methods for Electrical Conductivity and Re-
sistivity of Water
5. Procedure
D 1129 Terminology Relating to Water
5.1 Start-Up Report:
D 1253 Test Method for Residual Chlorine in Water
2 5.1.1 Provide a complete description of the RO plant. This
D 1889 Test Method for Turbidity of Water
can be done by using a flow diagram and equipment, instru-
D 3739 Practice for Calculation and Adjustment of Lange-
3 mentation, and material lists to show water source, pretreat-
lier Saturation Index for Reverse Osmosis
2 ment system, RO configuration, and posttreatment system.
D 4189 Test Method for Silt Density Index (SDI) of Water
5.1.2 Record initial performance of RO and pretreatment
D 4194 Test Methods for Operating Characteristics of Re-
3 systems as provided in 5.2 and 5.3, respectively.
verse Osmosis and Nanofiltration Devices
5.1.3 Calibrate all gages and meters based on manufactur-
D 4195 Guide for Water Analysis for Reverse Osmosis
3 ers’ recommendations.
Application
5.2 RO Operating Data:
D 4582 Practice for Calculation andAdjustment of the Stiff
3 5.2.1 Record the permeate and brine flows of each stage in
and Davis Stability Index for Reverse Osmosis
the RO system.
3. Terminology 5.2.2 Recordthefeed,permeate,andbrinepressuresofeach
stage. For hollow-fiber devices also record the brine pressure
3.1 Definitions—For definitions of terms used in this guide,
for each permeator.
refer to Terminology D 1129.
5.2.3 Record the water temperature of the feed stream after
the RO pump or of the permeate stream.
This guide is under the jurisdiction of ASTM Committee D19 on Water and is
5.2.4 Record the pH of the feed, permeate, and brine
the direct responsibility of Subcommittee D19.08 on Membranes and Ion Exchange
streams.
Materials.
Current edition approved June 10, 2003. Published August 2003. Originally
e1
approved in 1985. Last previous edition approved in 1998 as D 4472 – 89 (1998) .
Annual Book of ASTM Standards, Vol 11.01.
Annual Book of ASTM Standards, Vol 11.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D4472–89 (2003)
TABLE 1 Recommended Frequency of Data Collection
5.2.5 Record the conductivity of the feed, permeate, and
brine streams for each stage. For hollow-fiber devices, also Every 8 h Daily Weekly Monthly
A
record the brine conductivity of each permeator. For conduc-
Flows X X
Pressures:
tivity measurements use Test Methods D 1125.
A
system (by stages) X X
5.2.6 Record the Silt Density Index (SDI) or turbidity of the A
...
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