Does the database provide any information on uncertainty associated with emission data?
The research team at IRC/NRC is aware that the emission data can have a large amount of uncertainty due to specimen, experimental, and environmental variability. Any given material may have both multiple manufacturing sources and specific production types/classes. In addition, a single product may demonstrate significant variability in emission characteristics due to transient production factors (changing feedstock materials, environmental and process conditions during manufacture, etc). The research team used oriented strand board as a case study to quantify the uncertainty of VOC emission factors from a single material likely due to the non homogeneous nature of raw material ingredients, manufacturing processes, and handling/storing processes. A series of samples of oriented strand board (OSB) were collected and subjected to chamber tests for VOC emissions under standardized conditions (23oC, 50% RH, 1 air change per hour, 0.4 m2/m3 loading). Specimens were collected directly from th
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