Published: Jan 1965
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It seems likely that even in the very earliest fire endurance tests, some recognition must have been made of the influence of moisture on heat transfer behavior of constructions. Because of this, precautions were suggested in ASTM Method E 119 to insure that most of the free water within the specimen had been evaporated prior to test. However, it was not until the mid-1950's that C. A. Menzel successfully encouraged Committee E-S to adopt moisture conditioning requirements for constructions prior to test. Suggestions were also provided for techniques which would be useful for measuring the moisture condition of specimens. The experience observed while trying to apply these requirements made it evident that there was a need to provide information for testing organizations and materials producers on technical problems involving moisture in materials, and in this way encourage a better understanding of the importance of considering and controlling the moisture content of materials and constructions submitted to fire test. A symposium was accordingly held in June, 1964 for this purpose. This book includes the papers presented during this symposium. It is the hope of the committee on arrangements that the information presented will be useful by providing specific data on the manner in which moisture can influence the outcome of fire tests. However, the reader will note that a need remains for further research on moisture behavior in materials.
Robertson, A. F.
Chief, National Bureau of Standards, Washington, D. C.,