ASTM D4472-89(1998)e1
(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 may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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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e1
Designation: D 4472 – 89 (Reapproved 1998)
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.
e NOTE—Keywords were added editorially in December 1998.
1. Scope and Test Methods D 4194.
1.1 This guide covers procedures for well-defined record-
4. Significance and Use
keeping of reverse osmosis (RO) systems.
4.1 Proper operation and maintenance of an RO system are
1.2 This guide includes a start-up report, recordkeeping of
key factors in obtaining successful performance. This guide
RO operating data, recordkeeping of pretreatment operating
provides the necessary input for the evaluation of the perfor-
data and a maintenance log.
mance of the RO system, the pretreatment system, and the
1.3 This guide is applicable to waters including brackish
mechanical equipment in the plant.
waters and seawaters but is not necessarily applicable to
4.2 This guide is for general guidance only and must not be
wastewaters.
used in place of the operating manual for a particular plant.
1.4 This standard does not purport to address all of the
4.3 Site-dependent factors prevent specific recommenda-
safety concerns, if any, associated with its use. It is the
tions for all recordkeeping. Thus, only the more general
responsibility of the user of this standard to establish appro-
recordkeeping is covered by this guide.
priate safety and health practices and determine the applica-
4.4 This guide can be used for both brackish and seawater
bility of regulatory limitations prior to use.
systems which contain either spiral-wound or hollow-fiber
2. Referenced Documents devices.
2.1 ASTM Standards:
5. Procedure
D 1125 Test Methods for Electrical Conductivity and Re-
2 5.1 Start-Up Report:
sistivity of Water
2 5.1.1 Provide a complete description of the RO plant. This
D 1129 Terminology Relating to Water
can be done by using a flow diagram and equipment, instru-
D 1253 Test Method for Residual Chlorine in Water
2 mentation, and material lists to show water source, pretreat-
D 1889 Test Method for Turbidity of Water
ment system, RO configuration, and posttreatment system.
D 3739 Practice for Calculation and Adjustment of Lange-
3 5.1.2 Record initial performance of RO and pretreatment
lier Saturation Index for Reverse Osmosis
systems as provided in 5.2 and 5.3, respectively.
D 4189 Test Method for Silt Density Index (SDI) of Water
5.1.3 Calibrate all gages and meters based on manufactur-
D 4194 Test Methods for Operating Characteristics of
ers’ recommendations.
Reverse Osmosis Devices
5.2 RO Operating Data:
D 4195 Guide for Water Analysis for Reverse Osmosis
3 5.2.1 Record the permeate and brine flows of each stage in
Application
the RO system.
D 4582 Practice for Calculation and Adjustment of the Stiff
3 5.2.2 Record the feed, permeate and brine pressures of each
and Davis Stability Index for Reverse Osmosis
stage. For hollow-fiber devices also record the brine pressure
3. Terminology for each permeator.
5.2.3 Record the water temperature of the feed stream after
3.1 Definitions—For definitions of terms used in this guide,
the RO pump or of the permeate stream.
refer to Terminology D 1129.
5.2.4 Record the pH of the feed, permeate, and brine
3.2 Definitions of Terms Specific to This Standard: For
streams.
description of terms relating to RO, refer to Practice D 3739
5.2.5 Record the conductivity of the feed, permeate, and
brine streams for each stage. For hollow-fiber devices also
This guide is under the jurisdiction of ASTM Committee D-19 on Water and is
record the brine conductivity of each permeator. For conduc-
the direct responsibility of Subcommittee D19.08 on Membranes and Ion Exchange
tivity measurements use Test Methods D 1125.
Materials.
Current edition approved Oct. 27, 1989. Published March 1990. Originally
5.2.6 Record the Silt Density Index (SDI) or turbidity of the
published as D 4472 – 85. Last previous edition D 4472 – 85.
RO feed stream, or both. For SDI measurements use Test
Annual Book of ASTM Standards, Vol 11.01.
Method D 4189. For turbidity measurement use Test Method
Annual Book of ASTM Standards, Vol 11.02.
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