books.google.com - The procedure describes test methods and techniques for evaluating heaters and for determining their suitability for service use by the U.S. Army. (Author)....http://books.google.com/books/about/Heaters.html?id=oWGaNwAACAAJ&utm_source=gb-gplus-shareHeaters
Defense Technical Information Center, 1971 - 13 pages
The procedure describes test methods and techniques for evaluating heaters and for determining their suitability for service use by the U.S. Army. (Author).