. Proceedings of the annual convention . Illustration 4—A view of the rack on which 1-in by 3-in by 8-in coatedspecimens were subjected to outdoor change-in-weight tests where changesin weight were due to rainfall and humidity changes. Tests on Waterproofing Coatings 203. Illustration 5—Field weathering test on 1-in by 3-in by 8-in coated speci-mens half buried in an upright position. This test was followed by a similartest using 3-in by 4-in by 16-in specimens shown in Illustration 6.

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