PD CEN/TR 16013-2:2010 Workplace exposure. Guide for the use of direct-reading instruments for aerosol monitoring. Evaluation of airborne particle concentrations using optical particle counters
PD CEN/TR 16013-2 is a Technical Report which describes the principle underlying evaluation of one or more health related aerosol fractions using an optical particle counter and details its limits and possibilities in the field of occupational hygiene.
The method complements conventional long-term aerosol particle sampling and offers possibilities of:
- Instantaneous (direct reading) measurement
- Time-related monitoring
- Investigation of space-related aerosol evolution (mapping)
- Assessment of particle size distribution.
The method enables:
- Detection and relative quantification of concentration peaks due to specific operations (bagging, sanding,
etc.)
- Identification of most exposed workers with a view to more detailed studies of risks and prevention measures to be applied
- Detection of dust emission sources and their relative magnitudes.
Contents of PD CEN/TR 16013-2:
Foreword
Introduction
1 Scope
2 Principles of the method
2.1 Light scattering
2.2 Working principle
3 OPC performance characteristics
4 Number and mass concentrations
5 Mass concentrations of thoracic and respirable aerosol fractions
6 OPC use
6.1 General
6.2 Airflow adjustment
6.3 Calibration of particle count response
6.4 Calibration of particle diameter response
6.5 Mass concentration response
7 Fundamental and practical limitations
7.1 Refraction index and particle density
7.2 Forward scattering instruments
7.3 Limitation in particle size
7.4 Coincidence error and concentration limitation
7.5 Aerosols from several sources
8 Instrumentation characteristics
8.1 Aspiration system
8.2 Integrated collection filter
8.3 Sampling head
8.4 Optical cell
8.5 Electronics
8.6 Case of laser instruments
9 Aerosol measurement by OPC
9.1 Operating procedure
9.2 Cartography of workplace
9.3 Working shift monitoring
9.4 Sampling record
9.5 Cleaning and maintenance
Annex A (informative) Evaluation of an OPC as an instrument for thoracic and respirable mass concentrations
Annex B (informative) Example for the determination of the correction coefficient for an OPC
Bibliography
