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ASTM D5090-20

(Practice)

Standard Practice for Standardizing Ultrafiltration Permeate Flow Performance Data

Standard Practice for Standardizing Ultrafiltration Permeate Flow Performance Data

SIGNIFICANCE AND USE
5.1 During the operation of a UF system, conditions including pressure and temperature can vary, causing permeate flow to change (see Note 1). To effectively evaluate system performance, it is necessary to compare permeate flow data at the same conditions. Since data may not always be obtained at the same conditions, it is necessary to convert the UF data obtained at actual conditions to a set of constant conditions, thereby standardizing the data. The user of this practice determines the standard conditions. This practice gives the procedure to standardize UF data on pure water only.
Note 1: Feed concentration, crossflow velocity, and both device and total system recovery will also influence permeate rate, especially when operating on other than pure water. This practice does not address those system conditions.  
5.2 This practice can be used for systems which contain spiral-wound, tubular, plate and frame, and hollow fiber devices.  
5.3 This practice can be used for a single-element or a multi-element system. However, if the UF system is staged, standardize the permeate flow and salt passage for each stage separately. This requires pressure readings at the feed inlet and concentrate outlet of each stage.  
5.4 This practice is applicable for UF systems with no significant leaks between the feed/concentrate and permeate streams.  
5.5 This practice assumes no significant osmotic pressure differential (Δπ) exists in the UF system under the actual operating conditions. Differential osmotic pressure will reduce the permeate rate relative to operation on pure water.  
5.6 The user of this practice should be aware that fouled UF devices will produce less permeate flow than nonfouled devices, and may wish to perform flushing, chemical, or mechanical cleaning, or combination thereof, prior to determining the permeate flow performance of the device.
SCOPE
1.1 This practice covers the standardization of permeate flow for ultrafiltration (UF) systems.  
1.2 This practice is applicable to natural waters including brackish waters, seawaters, and ultrapure waters including those used in power generation and microelectronics and pharmaceuticals production. It is not necessarily applicable to waste waters.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

Status
Published
Publication Date
31-Oct-2020
ICS
17.060 - Measurement of volume, mass, density, viscosity
Technical Committee
D19 - Water
Drafting Committee
D19.08 - Membranes and Ion Exchange Materials
Current Stage
Ref Project

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ASTM D5090-20 - Standard Practice for Standardizing Ultrafiltration Permeate Flow Performance Data
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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.
Designation: D5090 −20
Standard Practice for
Standardizing Ultrafiltration Permeate Flow Performance
1
Data
This standard is issued under the fixed designation D5090; 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 3.2.1 concentrate, reject, or brine, n—that portion of feed
which does not pass through the membrane.
1.1 This practice covers the standardization of permeate
3.2.2 device pressure drop (∆P), n—the difference between
flow for ultrafiltration (UF) systems.
the feed pressure and the concentrate pressure.
1.2 This practice is applicable to natural waters including
3.2.3 feed, n—the fluid that enters the device.
brackish waters, seawaters, and ultrapure waters including
those used in power generation and microelectronics and
3.2.4 permeate, n—that portion of the feed which passes
pharmaceuticals production. It is not necessarily applicable to
through the membrane.
waste waters.
3.2.5 permeate flow rate, n—the quantity of permeate pro-
1.3 This standard does not purport to address all of the
duced per unit time.
safety concerns, if any, associated with its use. It is the
3.2.6 recovery or conversion, n—the ratio of permeate flow
responsibility of the user of this standard to establish appro-
rate to total feed flow rate, expressed as a percent.
priate safety, health, and environmental practices and deter-
3.2.7 stage, n—a device or group of devices, several of
mine the applicability of regulatory limitations prior to use.
which may be included in a system, which share common
1.4 This international standard was developed in accor-
manifolds on the feed, concentrate and permeate stream
dance with internationally recognized principles on standard-
plumbing.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3.2.7.1 Discussion—The concentrate from one stage be-
mendations issued by the World Trade Organization Technical
comes the feed to the following stage.
Barriers to Trade (TBT) Committee.
3.2.8 ultrafiltration device, n—a single housing (vessel),
comprising or containing an ultrafiltration element or multiple
2. Referenced Documents
elements and supporting materials.
2
2.1 ASTM Standards:
4. Summary of Practice
D1129 Terminology Relating to Water
4.1 This practice consists of calculating the permeate flow
D6161 Terminology Used for Microfiltration, Ultrafiltration,
of UF systems at a standard set of conditions using data
Nanofiltration,andReverseOsmosisMembraneProcesses
obtained at actual operating conditions.
3. Terminology
5. Significance and Use
3.1 Definitions:
5.1 During the operation of a UF system, conditions includ-
3.1.1 For definitions of terms used in this standard, refer to
ing pressure and temperature can vary, causing permeate flow
Terminologies D1129 and D6161.
to change (see Note 1). To effectively evaluate system
3.2 Definitions of Terms Specific to This Standard:
performance, it is necessary to compare permeate flow data at
the same conditions. Since data may not always be obtained at
the same conditions, it is necessary to convert the UF data
1
This practice is under the jurisdiction of ASTM Committee D19 on Water and
obtained at actual conditions to a set of constant conditions,
is the direct responsibility of Subcommittee D19.08 on Membranes and Ion
thereby standardizing the data. The user of this practice
Exchange Materials.
determines the standard conditions. This practice gives the
Current edition approved Nov. 1, 2020. Published November 2020. Originally
approved in 1990. Last previous edition approved in 2007 as D5090 – 07 which was procedure to standardize UF data on pure water only.
withdrawn July 2020 and reinstated in November 2020. DOI: 10.1520/D5090-20.
2
NOTE 1—Feed concentration, crossflow velocity, and both device and
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
total system recovery will also influence permeate rate, especially when
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 operating on other than pure water. This practice does not address those
the ASTM website. system conditions.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5090 − 20
5.2 This practice can be used for systems which con
...

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SCOPE
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SCOPE
1.1 This practice describes a popular industry protocol for the rheological characterization of waterborne architectural coatings using three commonly used rotational bench viscometers. Each viscometer operates in a different shear rate regime for determination of coating viscosity at low shear rate, mid shear rate, and at high shear rate respectively as defined herein. General guidelines are provided for predicting some coating performance properties from the viscosity measurements made. With appropriate correlations and subsequent modification of the performance guidelines, this practice has potential for characterization of other types of aqueous and non-aqueous coatings.  
1.2 The values in common viscosity units (Krebs Units, KU and Poise, P) are to be regarded as standard.  
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1.1 This test method describes the calibration or calibration verification of rotational viscometers in which the rotational element is immersed in a Newtonian reference material under ambient temperature conditions. The method is applicable to rotational-type viscometers where a constant rotational speed results in a measured torque generated by the test specimen, and to Stormer viscometers where a constant applied torque results in a measured rotational speed. It is not intended for cone-and-plate or parallel plate viscometers.  
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SCOPE
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