Modeling and Testing of Formaldehyde Emission Characteristics of Pressed-Wood Products. Reports 12, 13, and 14 to the US Consumer Product Safety Commission, 1985

摘要

A survey of the CH sub 2 O emissions from pressed-wood products was conducted by selecting random samples of particleboard, hardwood plywood paneling, and medium density fiberboard from the largest US manufacturers and measuring their emissions using the formaldehyde surface emission monitor (FSEM). The product sampling protocols, results of the FSEM measurements, and statistical modeling of the intra-board, inter-board, and inter-product variation in CH sub 2 O emission strength are discussed in Reports XII and XIII. A second project concerns the CH sub 2 O permeability of common decorative floor coverings that can influence the CH sub 2 O emissions from particleboard underlayment in homes. The test design and preliminary experimental results for CH sub 2 O transport coefficient measurements of these flooring materials are presented in Reports XIII and XIV. A third project concerns an inter-laboratory test comparison of the FSEM. The first phase of this project, consisting of an inter-laboratory test comparison of the CH sub 2 O analysis of uniformly exposed 13X molecular sieve samples, is presented in Report XIII. A fourth project concerns the experimental measurement and modeling of the temperature, relative humidity, and CH sub 2 O concentration dependence of CH sub 2 O emissions from particleboard and hardwood paneling products. A preliminary report of the environmental chamber data for the first of two environmental parameters studies is given in Report XIV. Preliminary models are developed from a physical theory of CH sub 2 O transport across the bulk-vapor interface at the surface of pressed-wood products to describe the CH sub 2 O environmental parameters data. (ERA citation 11:011868)