EN ISO 13138:2012

Air quality - Sampling conventions for airborne particle deposition in the human respiratory system (ISO 13138:2012)

Publication date:   Mar 16, 2012

General information

60.60 Standard published   Jan 15, 2012

CEN

CEN/TC 137 Assessment of workplace exposure to chemical and biological agents

European Norm

13.040.01   Air quality in general

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Scope

ISO 13138:2012 specifies sampling conventions to define idealized samplers for estimating the deposition of non-volatile, non-hygroscopic, non-fibrous aerosols in five specific loci of the respiratory tract. The five loci consist of the anterior and posterior areas of the nasal passages, the ciliated and non-ciliated parts of the tracheobronchial area, and the alveolar (gas exchange) region.
The conventions are separated into three independent sampling efficiencies defined in terms of thermodynamic diameter characterizing the diffusive (Brownian) motion of sub-micrometre particles and four efficiencies in terms of aerodynamic diameter 0,1 μm characterizing deposition by impaction, interception or gravitational settling. Each conventional curve has been developed as an average of 12 deposition curves corresponding to 12 breathing conditions ranging from sitting to heavy exercise, male vs female, and breathing mode (mouth vs nasal breathing).

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PUBLISHED
EN ISO 13138:2012
60.60 Standard published
Jan 15, 2012