Why conduct nanomaterials analysis?
Nanotechnology is a growing field that is still in its infancy and the potential occupational health and safety consequences are not yet known. Our laboratory is one of the contracted laboratories that collaborates with government, industry and universities, making us one of the front runners of sizing and characterizing particles at the nanoscale.
At Bureau Veritas, we can assist with analyzing surrounding work practices, controls and employee protection equipment needs, as well as, exposure assessments for carbon nanotube materials.
Job tasks and processes can be characterized where employees work with raw or processed carbon nanotube (CNT) containing materials by taking air and wipe samples.
Engineering controls can be implemented to reduce exposures for specific tasks.
Airborne levels can be assessed by NIOSH Method 5040 and compared to the NIOSH REL (recommended exposure limit) of 1 micrograms/m3, 8-hour TWA.
Further examination of air samples by transmission electron microscopy (TEM) with X-ray energy dispersive spectroscopy (EDS) can be performed to quantify CNT, obtain size data and rule out elemental carbon containing particles such as carbon black and diesel soot. Wipe sample analysis using electron microscopy evaluates the effectiveness of work practices, housekeeping procedures and engineering controls.
See our instructional video - Sampling Carbon Nanotubes or Nanofibers