D5755:09

Standard Test Method for Microvacuum Sampling and Indirect Analysis of Dust by Transmission Electron Microscopy for Asbestos Structure Number Surface Loading

This test method covers a procedure to (a) identify asbestos in dust and (b) provide an estimate of the surface loading of asbestos in the sampled dust reported as the number of asbestos structures per unit area of sampled surface. This test method describes the equipment and procedures necessary for sampling, by a microvacuum technique, non-airborne dust for levels of asbestos structures. The non-airborne sample is collected inside a standard filter membrane cassette from the sampling of a surface area for dust which may contain asbestos. This procedure uses a microvacuuming sampling technique. The collection efficiency of this technique is unknown and will vary among substrates. Properties influencing collection efficiency include surface texture, adhesiveness, electrostatic properties and other factors.

Analysis Type (Application Method): Transmission electron microscopy (TEM)

Link to ASTM® D5755:09 Method

Compatible Filters:

25 or 47 mm vacuum glassware plus accessories. 25 or 37 mm air Monitoring plastic cassettes, pre-loaded if available. Forceps to handle filter membrane.

Materials

     
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