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ASTM D 3923 : 2008

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practices for Detecting Leaks in Reverse Osmosis and Nanofiltration Devices
Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

01-10-2008

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 11.02, 2017 Defines detecting leaks in which there is a direct communication between the feed or concentrate, or both, and the permeate.

1.1 These practices cover detecting leaks in which there is a direct communication between the feed or concentrate, or both, and the permeate. Several types of leaks are possible with the various configurations of reverse-osmosis (RO) and nanofiltration (NF) devices.

1.2 Types of Leaks:

1.2.1 With hollow-fiber devices, feed or concentrate leakage, or both, into the permeate stream by leaks through the tube sheet and past the tube sheet O-ring are possible. “Leaks” caused by broken fibers are not covered by these practices.

1.2.2 With spiral-wound devices, leaks may occur through damage of the membrane surface itself by punctures or scratches, by glue-line failure, and by O-ring leaks on product tube interconnectors.

1.2.3 With tubular devices, leaks due to membrane damage, tube end seal leaks, and leaks from broken tubes or product headers are possible.

1.3 Three leak test practices are given as follows:

Sections
Practice A—Tube Sheet and O-Ring Leak Test for Hollow
Fiber Devices 		8 to 9
Practice B—Vacuum Test for Spiral Wound Devices10 to 12
Practice C—Dye Test for Spiral Wound and Tubular Devices13 to 18

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.

Committee
D 19
DocumentType
Standard Practice
Pages
3
ProductNote
Reconfirmed 2008
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 7601 : 2019 Standard Practice for Pressure Driven Membrane Separation Element/Bundle Evaluation
ASTM D 6908 : 2006 : R2017 Standard Practice for Integrity Testing of Water Filtration Membrane Systems

ASTM D 1129 : 2013 : REDLINE Standard Terminology Relating to Water
ASTM E 275 : 2008 Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers

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PDF - English
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