March 31, 2010
by Bob Murphy
In reading various publications and articles I have chosen a few that may be of interest: LaFrance AWWA’s new executive director AWWA named David B. LaFrance as its new executive director. He will join the staff in May. LaFrance, 46, has served as director of finance for Denver Water for the past 12 years and [...]
Posted in General Topics, Water Industry News |
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March 10, 2010
by Bob Murphy
Final Odds ‘n’ Ends There are four things you should always ask yourself when evaluating competitors’ data or even comparing one set of data to another: What test method was used? ASTM D1653? E96? Some other method? Dry cup or wet cup? Are the terms the same? Am I comparing WVT to WVT or WVT [...]
Posted in Coatings and Linings, Permeability, physical properties |
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March 8, 2010
by Bob Murphy
Running the Tests Wet Cup The majority of products tested n are done via D1653, Wet Cup method. The paints are drawn down at approximately 10 mil wet film thickness on release paper and allowed to dry overnight at 25ºC and 50% RH. A second approximately 10 mil wet film is drawn down over and perpendicular to [...]
Posted in General Topics |
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