This standard practice describes an indoor mathematical model which can be used to assess the chemical emissions from SPF and the chemical fate (e.g., sorption and ventilation) in a multi-compartment residential building. For each input parameter required by this model, this practice defines an appropriate range and statistical distribution based on experimental results and literature. A preliminary list of required input parameters can be found in the appendix of this proposal. Further, this standard practice also aims to provide guidance to address the spatial and temporal variations in indoor emission and fate modeling. For example, the location of ventilation unit in a residence tends to be different between the north and south region in the U.S.. In addition, the air flow pattern in a residence is different in summer vs. winter. Finally, this standard practice allows future validations of modeling algorithm and input parameters when filed monitoring and lab experimental studies are available. The modeling results are anticipated to be used to prioritize chemicals for further experimental measurements and serve as screening values for human exposure and risk assessment when field monitoring results are not available. This standard practice also provides guidance on how to interpret the modeling results.
Keywordsspray polyurethane foam, indoor model, emissions
The modeling results are useful to prioritize what input parameters should be measured experimental with a priority and the modeling results can serve as screening values when field monitoring results are not available. The developed indoor model can be used for human exposure and risk assessment of SPF and other indoor consumer products.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development