Problems Associated with the Use of Urea-Formaldehyde Foam for Residential Insulation. Part II. The Effects of Temperature and Humidity on Free Formaldehyde, Extractable Formaldehyde, Formaldehyde Emission, and Physical Characteristics of the Foam

摘要

Results of testing with two products of urea-formaldehyde based foams are described. Results of three products have previously been reported. Methods for detection and quantitative determination of formaldehyde, design of the experimental chambers, and the procedures are described. Samples of Product D were monitored for about 29 days and samples of Product E were monitored for 60 days in chambers and results are tabulated for formaldehyde emission. Additional tests performed on the two products are: extractable formaldehyde (high and low temperature conditions); free formaldehyde (high and low temperature conditions); comparison of free formaldehyde concentration; density (high and low temperature conditions); shrinkage (high and low temperature conditions). Control panels were constructed to simulate a wall in a home and observations were made and compared with results of the experimental products. (ERA citation 06:014246)