NBN EN 13528-2 : 2002

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Requirements
   5.1 Desorption efficiency (for samplers involving solvent
        desorption)
   5.2 Desorption efficiency (for samplers involving thermal
        desorption)
   5.3 Effect of air velocity/sampler orientation
   5.4 Storage (indirect-reading samplers)
   5.5 Shelf life
   5.6 Sampler integrity
   5.7 Blank value
   5.8 Field tests
   5.9 Uncertainty
   5.10 Instructions for use
   5.11 Sample identification
 6 General test conditions
   6.1 Reagents
   6.2 Apparatus
   6.3 Independent method
   6.4 Generation of calibration gas mixture
       6.4.1 General
       6.4.2 Calibration gas mixture
   6.5 Test conditions
       6.5.1 General
       6.5.2 Laboratory tests under repeatability conditions
             involving standard atmospheres (7.3, 7.4, 7,7,
             7.8 and annex A)
       6.5.3 Laboratory tests under reproducibility
             conditions involving standard atmospheres (7.5)
       6.5.4 Laboratory tests not involving standard
             atmospheres (7.2, 7.6, 7.9)
       6.5.5 Field tests
7 Test methods
   7.1 General
   7.2 Desorption efficiency
        7.2.1 Spiking methods for samplers involving solvent
              desorption
        7.2.2 Spiking methods for samplers involving thermal
              desorption
        7.2.3 Phase equilibrium method (samplers involving
              solvent desorption)
   7.3 Bias due to the selection of non-ideal sorbent (for
        samplers relying on reversible sorption)
        7.3.1 Procedure
        7.3.2 Calculation
   7.4 Test on influence of air velocity and sampler
        orientation
   7.5 Effect of environmental parameters on sampler
        performance (uptake rate)
        7.5.1 Procedure
        7.5.2 Calculation
   7.6 Storage (for indirect-reading samplers)
        7.6.1 Procedure
        7.6.2 Calculation
   7.7 Shelf life
   7.8 Sampler leak test
   7.9 Determination of the blank value
   7.10 Field tests
8 Calculation of uncertainty
   8.1 General
   8.2 Desorption efficiency
   8.3 Uptake rate
   8.4 Storage
   8.5 Shelf life
   8.6 Sampler integrity
   8.7 Blank value
   8.8 Type B errors
   8.9 Combined uncertainty
   8.10 Field tests
9 Levels of evaluation
10 Test report
11 Marking
Annex A (normative) Determination of diffusive uptake
        rates (indirect-reading samplers)
Annex B (normative) Calculation of exposure concentration
Annex C (informative) Calculation of uncertainty components
Bibliography

Gives specific performance requirements and test methods under prescribed laboratory and field conditions for diffusive samplers used for the determination of the concentration of gases or vapours in ambient air. Applicable to all stages of the measuring procedure, including transportation and storage of the sample where appropriate.