Validation of models for predicting formaldehyde concentrations in residences due to pressed wood products. Phase 1
The interim report describes procedures and presents results of the first phase of a laboratory project undertaken at the National Bureau of Standards for the Consumer Product Safety Commission (CPSC). The purpose of the project is to assess the accuracy of emission and indoor-air-quality models to be used by CPSC in predicting formaldehyde (HCHO) concentrations in residences due to pressed-wood products made with urea-formaldehyde bonding resins, namely particleboard underlayment, hardwood-plywood paneling and medium-density fiberboard (MDF). In phase I, these products were characterized in medium-size dynamic measuring chambers by measuring their HCHO surface emission rates over a range of HCHO concentrations, at 23C and 50% RH. They were then installed in a two-room prototype house and the equilibrium HCHO concentrations were monitored as a function of air exchange rate. Excellent agreement was obtained between measured HCHO concentrations and those predicted by a mass-balance indoor air quality model. In the next phase, the study will be repeated at various different temperatures and relative humidities so that models predicting HCHO surface emission rate as a function of temperature and humidity can be tested.
- Research Organization:
- National Bureau of Standards, Washington, DC (USA). Building Physics Div.
- OSTI ID:
- 6014871
- Report Number(s):
- PB-86-140514/XAB; NBSIR-85/3255
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FORMALDEHYDE
INDOOR AIR POLLUTION
RESIDENTIAL BUILDINGS
WOOD PRODUCTS INDUSTRY
HAZARDOUS MATERIALS
AIR QUALITY
CONSUMER PRODUCTS
HOUSES
HUMIDITY
MATHEMATICAL MODELS
SAFETY
AIR POLLUTION
ALDEHYDES
BUILDINGS
ENVIRONMENTAL QUALITY
INDUSTRY
MATERIALS
ORGANIC COMPOUNDS
POLLUTION
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)