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Standard [CURRENT]
DIN ISO 16000-27:2014-11
Indoor air - Part 27: Determination of settled fibrous dust on surfaces by SEM (scanning electron microscopy) (direct method) (ISO 16000-27:2014)
- German title
- Innenraumluftverunreinigungen - Teil 27: Bestimmung von abgelagerten Faserstäuben auf Oberflächen mittels REM (Rasterelektronenmikroskopie) (direkte Methode) (ISO 16000-27:2014)
- Publication date
- 2014-11
- Original language
- German
- Pages
- 40
- Publication date
- 2014-11
- Original language
- German
- Pages
- 40
- DOI
- https://dx.doi.org/10.31030/2239093
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Short description
The international standard ISO 16000-27 specifies a method giving an index for the numerical concentration of fibrous structures with fibres equal or greater than 0,2 µm in diameter in settled dust on surfaces and their classification into specific substance groups (e. g. chrysotile, amphibole asbestos, other inorganic fibres). It is primarily applicable to indoor areas, but it is also suitable for certain outdoor situations. A sampling technique for collection of settled dust using adhesive tape is described. The method incorporates an analytical method for evaluation of the collected samples by scanning electron microscopy. The result can be specified in asbestos structures per unit area and/or classified into four different loading classes. The analytical sensitivity depends on the area examined and can be as low as 10 structures per cm2.
Content
ICS
13.040.20
DOI
https://dx.doi.org/10.31030/2239093
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