Bulk Asbestos Analysis Behind the Scenes

A homeowner recently brought a bulk sample into the lab and was quite interested in knowing exactly how her sample would be tested for asbestos. There are quite a few people who are experienced in proper sample collection, however other than dropping off the samples and reading the report, do you know how a bulk asbestos analysis is performed?

STEP 1

The sample is removed from the collection bag and a visual inspection is performed underneath a low-magnification stereoscope. Information such as the number and composition of layers is performed at this step.

STEP 2

A slide of each layer is then individually prepared for analysis under the microscope. Depending on the material, this can include the use of organic solvents, acid, scraping, and/or crushing.   

STEP 3

Once sufficiently broken up, a slide is prepared with the sample and dispersion staining oil. Dispersion staining oil allows the analyst to positively identify and speciate the different asbestos forms from other minerals.

STEP 4

If asbestos is found, a visual estimation of how much asbestos is present relative to the other parts of the layer is made. The remaining non-asbestos composition of the layer is determined, and then the next layer is analyzed in the same fashion.

Once all samples are analyzed, a report is generated and released to the client.  

Our NVLAP accredited laboratory supports public and private clients throughout the US , Canada, Korea and Japan. Additionally, our in-house laboratory provides analysis for RGA’s offices in Seattle, WA, Orange County and the SF Bay Area. A client oriented asbestos and metals laboratory like RGA’s provides its clients with quick turnaround times at cost effective prices. 

 Matthew Quarterman, Lab Analyst –  Seattle, WA

Tags: air sampling, asbestos sample, bulk asbestos, Canada, Japan, Korea, NIOSH 582, NIOSH 7400, NVLAP laboratory, pacific northwest lab, PLM, point count, Seattle WA asbestos lab