VDI 3492 - Entwurf

Indoor air, ambient air - Measurement of inorganic fibrous particles - Scanning electron microscopy method

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Englischer Titel

Innenraumluft, Außenluft - Messen anorganischer faserförmiger Partikel - Rasterelektronenmikroskopisches Verfahren

Erscheinungsdatum

2024-12

Enddatum der Einspruchsfrist

2025-03-31

Herausgeber

Engl. VDI/DIN-Kommission Reinhaltung der Luft (KRdL) - Normenausschuss

Autor

Technical Division Environmental Measurement Technologies

Zugehörige Handbücher

• VDI/DIN manual Air Pollution Prevention Volume 4: Analysis and Measurement Methods

Seitenanzahl

36

Erhältlich in

Deutsch

Kurzreferat

This standard specifies a method for determining the number concentration of inorganic fibrous particles in indoor air or outdoor air and the assignment of these fibers to specific fiber classes (chrysotile, amphibole asbestos, calcium sulfate, other inorganic fibers). Fiber counting and classification is carried out using the SEM/EDXA method (scanning electron microscope/energy-dispersive X-ray analysis). The detection limit of the method for the fiber count concentration under the standard conditions specified in the standard is 300 m-3, the analytical sensitivity is 100 m-3. Information is provided on the differentiation of product fibers and the determination of organic fibers. This standard is primarily aimed at experts, engineering offices, specialist remediation companies, laboratories and authorities.