Abstract
A need is developing in industry for water of higher and higher purity. As the purity of the water increases, the storing of it becomes an increasingly difficult problem. In order to mitigate this problem, investigations and appraisals of new protective measures for existing steel tanks were made, and some were applied to actual installations. Protective coatings discussed include red lead paint, metallic zinc paint, synthetic rubber, nickel-phosphorous-alloy coating, heavy electroplated nickel, and metallized aluminum coatings.
Aluminum, as a construction material for storage facilities, was evaluated in laboratory and field tests. These tests resulted in the construction of four 44,000-gallon aluminum storage tanks. Data were reported to show the electrical resistance of a film developed on 3003 aluminum alloy in tap water, distilled water and demineralized water. 4.6.5
