VDI 3492-2004 PDF

Scope: This guideline specifies a method for determining the numerical concentration of inorganic fibrous particles in indoor air or ambient air and the assignment of these particles to particular classes of fibres (chrysotile, amphibole asbestos, calcium sulphate, other inorganic fibres). The fibre counting and assignment are carried out by the SEM/EDXA method (scanning electron microscope/energy -dispersive X-ray analyis). The limit of detection of the method under the standard conditions specified in this guideline is 300 fibres/m3. Information on the differentiation of product fibres and the determination of organic fibres is provided.

VDI 3492-2004 Referenced Document

ISO 14966:2002 Ambient air - Determination of numerical concentration of inorganic fibrous particles - Scanning electron microscopy method
VDI 2449 Blatt 2-1987 Basic concepts for characterization of a complete measuring procedure; glossary of terms
VDI 3866 Blatt 1-2000 Determination of asbestos in technical products - Principle - Sampling and sample preparation
VDI 4280 Blatt 1-1996 Planning of ambient air quality measurements - General rules

2013 VDI 3492-2013 Indoor air measurement - Ambient air measurement - Measurement of inorganic fibrous particles - Scanning electron microscopy method
2004 VDI 3492-2004 Indoor air measurement - Ambient air measurement - Measurement of inorganic fibrous particles - Scanning electron microscopy method
2002 VDI 3492-2002 Indoor air measurement - Ambient air measurement - Measurement of inorganic fibrous particles; Scanning electron microscopy method
1994 VDI 3492 Blatt 2-1994 Indoor air pollution measurement; measurement of inorganic fibrous particles; measurement planning and procedure; scanning electron microscopy method
1991 VDI 3492 Blatt 1-1991 Messen anorganischer faserfoermiger Partikel in der Aussenluft; Rasterelektronenmikroskopisches Verfahren