Norm

NEN-ISO 13794:1999 en

Luchtkwaliteit - Buitenlucht - Bepaling van de concentratie aan asbestvezels - Bepaling met transmissie elektronenmicroscopie, indirecte methode

147,90

Over deze norm

Status Definitief
Aantal pagina's 64
Gepubliceerd op 01-09-1999
Taal Engels
Specifies a refernce method using transmission electron microscopy (TEM) for determination of the concentration of asbestos structures in ambient atmospheres. The specimen preparation procedure incorperates ashing and dispersion of the collected particulate, so that all asbestos is measured, including the asbestos originally incorperated in particle aggregates or particles of composite materials. The lenths, widths and aspect ratios of asbestos fibres and bundles are measured, and these, together with the density of the type of asbestos, also allow the total mass concentration of airborne asbestos to be calculated. The method allows determination of the type(s) of asbestos fibre present.

Details

ICS-code 13.040.20
Nederlandse titel Luchtkwaliteit - Buitenlucht - Bepaling van de concentratie aan asbestvezels - Bepaling met transmissie elektronenmicroscopie, indirecte methode
Engelse titel Ambient air - Determination of asbestos fibres - Indirect-transfer transmission electron microscopy method

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