Formaldehyde surface-emission monitor
作者： T. G. Matthews , A. R. Hawthorne , C. R. Daffron , M. D. Corey , T. J. Reed
DOI: 10.1021/AC00267A035
关键词:
摘要: A passive surface emission monitor has been developed for nondestructive measurement of formaldehyde (CH/sub 2/O) rates from CH/sub 2/O resin-containing materials such as urea-formaldehyde foam insulation (UFFI) and pressed-wood products. Emitted is sorbed by a planar distribution 13X molecular sleve supported inside the analyzed using water-rinse desorption, colorimetric analysis procedure. detection limit similarly ordered 0.025 mg 2/O/(M/sup 2/ h) achieved with 20.3 cm diameter 2-h collection period. Measurements products UFFI encased in simulated wall panels show strong correlation reference chamber techniques. The used to measure rate interior walls floors one two non-UFFI homes. By application simple single compartment model predict indoor concentrations situ tracer gas infiltration measurements, good between predicted measured was achieved. 22 references, 5 figures, 4 tables.
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