Filters were shipped in coolers at reduced temperature with a max/min thermometer. ... were stored before and after sampling at reduced temperatures in a refrigerator, especially after sample collection. ... filter holders and denuders prior to and after each sampling period, and other items as specified on the data log sheets.
|Title||:||Evaluation of PM2.5 speciation sampler performance and related sample collection and stability issues for U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Emissions, Monitoring, and Analysis Division|
|Publisher||:||DIANE Publishing -|