SMI Analytical Laboratory Services | Air Sampling Services | X-ray Diffraction Services | South Africa


SMI Analytical Laboratory Services :: Analytical Chemistry Services :: X-ray Diffraction Services

PO Box 260787
EXCOM 2023
Republic of South Africa
Tel: +27 12 668 1118
Fax: +27 12 668 1064
Mobile: 082 556 8557

Air Sampling for Hazardous Dust and Welding Fumes


Typical Air Sampling Equipment and Air Sampling Set-Up

Sampling pump with clip on cyclone for respirable dust. Air sampler fitted to person


Respirable Hazardous Dust and Fume Sampling

  • Air is drawn through the rubber hosing at a constant flow rate ( Typically 1.9 l/min to 2.2 l/min ) via a micro-processor controlled pump.
  • The sampling head consists of a Cyclone and a sealed cassette with a filter paper inside.
  • The cyclone separates dust and particles into the respirable fraction ( 10uM or smaller ).
  • Dust and welding fumes are trapped on the filter paper.
  • The cassettes are re-sealed with stoppers and returned to the laboratory for dust and welding fume analysis.

Air sampling cassette Air sampling cassette

Hazardous Gases and Fume Sampling

Hazardous Fumes like PAH's and Diesel Fumes etc. are sampled much in the same way as dust and welding fumes. The only difference being instead of a filter paper a small absorbent tube with active carbon or Tenax ® sorbent tubes replace air sampling cassettess.
The tubes are then re-sealed and returned to the laboratory were they are analysed via Gas Chromatography.

SMI Analytical can assist you with sampling equipment and sampling accessories, as well as your laboratory analysis requirements.
Vapours and Dusts are Hazardous
Disclaimer: The liability of SMI ANALYTICAL is limited to the cost of analysis. SMI ANALYTICAL indemnifies itself from any legal action which may be instituted against it due to supplied data. SMI ANALYTICAL accepts no responsibility whatsoever for any results released, however used. No part of this document may reproduced in part or in full unless permission from SMI ANALYTICAL is granted in writing. This document may not be altered in any way whatsoever and is printed without correction.

Occupational Health and Safety Links and Analytical Chemistry Links

American NIOSH
USA NIOSH Manual of Analytical Methods
University of Cambridge - Analytical Chemistry Journals
The Clay Minerals Society - Online Courses, Lectures, and Labs
Sheffield Chemdex is the directory of analytical chemistry on the World-Wide Web

Analytical Lab

SMI Analytical Laboratory Services / Chemical Laboratory Services specializes in quantitative X-Ray diffraction Air sampling equipment, air sampling pumps, Hazardous Substances, Pollution Monitoring, VOC, Volatile Organic Carbon, Heavy Metal Analysis, XRD, X-Ray Diffrction, silica, silica dust, welding fumes, cancer causing agents, welding fume analysis, Laboratory, South Africa, in, near, site:, =, '', SA, za, 'loc:za
“TiO2+” (aq) + 2H2 + e = Ti3+ + H2O     E0=ca.0.1V

SMI Analytical Laboratory Services | Welding Fumes | Hazardous Dust and Vapours | South Africa