1.1Â This method covers the determination of the apparent rate of depth of water penetration into insulating coatings applied to pipe.
4.1Â 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 | June 1, 2013 |
| Language | en - English |
| Page Count | 4 |
| Revision Level | 07(2013)e1 |
| Supercedes | |
| Committee | D01.48 |