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BULK ASBESTOS IDENTIFICATIONBulk Asbestos Identification - Polarized Light Microscopy (PLM) EPA/600/R- 93/116

Examination of samples for bulk asbestos content is conducted in accordance with EPA/600/R-93/116 or EPA/600/M4-82-020 methodologies using polarized light microscopy (PLM).

Polarized light microscopy (PLM) analysis is the most commonly accepted technique for analysing bulk samples for asbestos. PLM analysis is specific to fibrous materials and allows for the determination of: Asbestos Type: Chrysotile, Amosite, Actinolite, Tremolite, Crocidolite or Anthophyllite;Quantification: percentage of asbestos and non-asbestos fibers in the sample quantified by the Calibrated Visual Estimate of the analyst;Fiber Colour under microscopic evaluation;Multiple layers of samples are analysed and reported separately. Please note that the EPA test method has limitations for quantifying the percentage of samples with low asbestos concentration. Transmission electron microscopy (TEM) would be encouraged for customers to obtain accurate results in these situations.

AIRBORNE ASBESTOS FIBER COUNTINGAirborne Asbestos Fiber Counting - Phase Contrast Microscopy (PCM) NIOSH 7400

Airborne fibre counting analysis is conducted in accordance with The National Institute for Occupational Safety and Health (NIOSH) Method 7400. While testing for airborne asbestos, air is drawn through a filter which is then analysed by phase contrast microscopy (PCM) or transmission electron microscopy (TEM).

Please note the PCM method does not differentiate between asbestos and other fibers. Transmission Electron Microscopy (TEM) is encouraged for customers to obtain more accurate results where precise determination of airborne asbestos fiber is needed.

MOLD ANALYSISStandard Test Method for Categorization and Quantification of Airborne Fungal Structures in an Inertial Impaction Sample by Optical Microscopy

The lab test method for the analysis of Fungal Spore & Particulate by Optical Microscopy samples can include air samples, surface samples such as swabs, bulk (pieces of material, dust or liquids), tape lift, and contact plates.

Non-viable (total spore count) analysis samples can include Air-O-Cell, VersaTrap Cassette, VersaTrap Sampling Cassettes, SKC BioStage, SKC BioCassette, Micro 5, Cyclex D, LARO-100, PCM and other cassettes. This analysis involves spore counting and identification of different categories of mold spores. The report includes spore counts for each category of spores and the grand total spore count for all spores per cubic meter of air.

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