EN 838:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Types of samplers
6 Requirements
7 General test conditions
8 Test methods
9 Test report
Annex A (informative) Fundamentals of diffusive
        sampling
Annex B (informative) Estimation of uncertainty
        of measurement
Annex C (informative) Example of estimation of
        expanded uncertainty
Bibliography

This European Standard specifies performance requirements and test methods under prescribed laboratory conditions for the evaluation of diffusive samplers and of procedures using these samplers for the determination of gases and vapours in workplace atmospheres.This European Standard is applicable to diffusive samplers and measuring procedures using these samplers in which sampling and analysis are carried out in separate stages.This European Standard is not applicable to:-diffusive samplers which are used for the direct determination of concentrations;-diffusive samplers which rely on sorption into a liquid.