|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
Dust in Libraries
Mašková, Ludmila ; Smolík, Jiří
Indoor air pollution in libraries and archives can be harmful for materials stored there. Adverse effects of most of gaseous pollutants are well described, but less is known about dust. Dust particles cover a wide range of sizes and have a variable composition. These characteristics determine their transport to the surfaces and also possible harmful effects. Dust particles not only cause soiling, but coarse particles can damage surfaces by abrasion. Fine particles of acidic or alkaline character may penetrate into the books where they may cause chemical degradation or moistening due to their hygroscopicity. Dust particles in the indoor environment of libraries and archives are studied in a project which aim is a development of evaluation methods for indoor air quality, targeted at reduction of damages on archival collections caused by adverse effects of environment.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22014031914460 - PDF
|
|
|
Basamatikum - Combined Wide Size Range Aerosol Spectromeeter
Ondráček, Jakub ; Mašková, Ludmila ; Smolík, Jiří
Combined wide size range aerosol spectrometer Basamatikum allows to measure particle number size distribution in a range between 20 nm – 20 μm. The instrument separates the measured aerosol particles into 58 size bins. The instrument can automatically switch the scanning between two sampling points (e.g. indoors and outdoors). It consists basically from two aerosol spectrometers (UFPM and APS), electrically actuated ball valve, sampling tubing with isokinetic subsampling to both of the two spectrometers and two sampling lines. The overall control, data logging and saving to file, the switching between sampling lines and the user interface is provided by the means of the LACP-made (Laboratory of Aerosol Chemistry and Physics) software in LabVIEW programming environment.
Fulltext: content.csg - PDF
Plný tet: SKMBT_C22013101814582 - PDF
|
guest ::
RSS feed.