Asbestos Microscopy

Asbestos is the name given to a number of naturally occurring, fibrous silicate minerals mined for their useful properties such as thermal insulation, chemical and thermal stability, and high tensile strength. Asbestos is commonly used as an acoustic insulator, thermal insulation, fire proofing and in other building materials. Many products are in use today that contain asbestos. Asbestos is made up of microscopic bundles of fibers that may become airborne when asbestos-containing materials are damaged or disturbed. When these fibers get into the air they may be inhaled into the lungs, where they can cause significant health problems.

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Phase Contrast Microscopy (PCM)
 NIOSH 7400

Asbestos Identification in Bulk Material
 Polarized Light Microscopy (PLM)           
EPA 600/M4-82-020
 EPA/600/R-93/116 - Point Counting-EPA 400 Point Count
NYSDOH ELAP PLM 198.1 - Point Counting-Stratified
NIOSH 9002

Transmission Electron Microscopy (TEM)
EPA 600/R-93-116 (Chatfield: Semi-Quantitative)
 EPA 600/R-93-116 (Quantitative)
NYSDOH ELAP TEM 198.4

Asbestos Identification in Water
 Transmission Electron Microscopy (TEM)
 EPA 100.1 All lengths Asbestos Fibers in Drinking Water (EPA 600/4-83-043)
EPA 100.2 Drinking Water (>10 um regulated fibers) (EPA-NELAC Water) (EPA 600R-94/134) EPA 600/4-80-005 High Organic Waste Water

  Transmission Electron Microscopy (TEM)
AHERA Air Protocol
NIOSH 7402
EPA Level II
ASTM D6281-98 ISO 10312

Asbestos Identification in Dust
 Transmission Electron Microscopy (TEM)
ASTM D5755 (Microvac)
ASTM D5756 (Microvac)
ASTM D6480 (Wipe)

Asbestos Identification in Soil
 Polarized Light Microscopy (PLM) & Transmission Electron Microscopy (TEM)        
Carb 435
 EPA 600/R-93/116
  -Quantitative
  -Modified (Qualitative)
EPA Region 1 Screening Protocol

 
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