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ASTM G9-07

Current Revision

Standard Test Method for Water Penetration into Pipeline Coatings

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1.1 This method covers the determination of the apparent rate of depth of water penetration into insulating coatings applied to pipe.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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.


The deterioration of an insulating coating film is intimately related to its moisture content. The water penetration test provides a means for monitoring the passage of moisture through a coating material by means of changes in its dielectric constant. When expressed in relation to time, the test data will reflect a rate of deterioration which is a characteristic of the coating material and will bear a relation to its expected useful life as an insulating coating. The test for water penetration will also provide information that is useful in establishing the optimum coating thickness for a given material.

SDO ASTM: ASTM International
Document Number G9
Publication Date July 1, 2007
Language en - English
Page Count 4
Revision Level 07
Supercedes
Committee D01.48
Publish Date Document Id Type View
July 1, 2007 G0009-07 Revision
July 10, 1998 G0009-87R98 Revision
Aug. 1, 2020 G0009-07R20 Reaffirmation
June 1, 2013 G0009-07R13E01 Reaffirmation