Retrospective analysis of treatment approaches used for basal and squamous cell carcinoma in the head and neck

Development of a Canadian Standard for Urea Formaldehyde Thermal Wall Insulation

“…The foams set within approximately one minute, yielding friable, structurally weak foams that are permeable to water vapor. Initially the foams are wet, having a density of about 40 to 48 kg/m3. The moisture a evaporates over the course of several days or even weeks (some moisture is absorbed by the surrounding materials), leaving dry foams of a density normally within the range 9.5 to 13 kg/m3.…”