ASTM-D3923 2003

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D3923-94(2003)e1 Standard Practices for Detecting Leaks in Reverse Osmosis Devices

Published By	Publication Date	Number of Pages
ASTM	2003	3

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Categories: 71.120.99 - Other equipment for the chemical industry, ASTM

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Description

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 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:

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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Practice Significance and Use Apparatus
2	Purity of Reagents Scope Procedure Scope Summary of Practice Procedure Scope Summary of Practice
3	Apparatus Reagents Procedure Calculation Keywords

Additional information

	Sections
Practice C-Dye Test for Spiral Wound and Tubular Devices	13 to 18
Practice B-Vacuum Test for Spiral Wound Devices	10 to 12
Practice A-Tube Sheet and O-Ring Leak Test for Hollow Fiber Devices	6 to 9
ICS Codes	71.120.99 - Other equipment for the chemical industry

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ASTM-D3923 2003

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