DIN EN 14412:2004-12

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Operating principles
   5.1 Principle of diffusive sampling
   5.2 Dimensions of diffusive uptake rate
   5.3 Bias due to the selection of a non-ideal sorbent
   5.4 Environmental factors affecting sampler performance
        5.4.1 Temperature and pressure
        5.4.2 Humitidy
        5.4.3 Transients
        5.4.4 The influence of air velocity
        5.4.5 Transportation
6 Measurement objectives
   6.1 General
   6.2 Identification of causes of complaints about poor
        indoor air quality
   6.3 Determination of reference values for indoor air
        quality
   6.4 Compliance with limit or guideline values for indoor
        air
   6.5 Identification of indoor pollutant sources
   6.6 Testing of effectiveness of remedial action
   6.7 Analysis of trends in indoor air quality
   6.8 Assessment of concentrations in indoor air at abnormal
        or "worst-case" conditions
   6.9 Personal monitoring
   6.10 Validation of indoor pollution models
   6.11 Measurement of mean ventilation rates
   6.12 Aim of quality control with parallel measurements
        involving different methods
7 Measurements strategy
   7.1 General
   7.2 Elements of sampling strategy
       7.2.1 General
       7.2.2 Time of sampling
       7.2.3 Sampling duration and sampling frequency
       7.2.4 Location of samplers
       7.2.5 Simultaneous ambient air measurements
       7.2.6 Supplementary information
       7.2.7 Uncertainty
   7.3 Measurement strategy with respect to defined measurement
       objectives
       7.3.1 General
       7.3.2 Identification of causes of complaints about
              poor indoor air quality
       7.3.3 Determination reference values of indoor air quality
       7.3.4 Control of limit and guideline values
       7.3.5 Identification of air pollutant sources
       7.3.6 Testing of effectiveness of remedial actions
       7.3.7 Analysis of trends in indoor air quality
       7.3.8 Assessment of concentrations in indoor air
              at abnormal or "worse-case" conditions
       7.3.9 Personal monitoring
       7.3.10 Validation of indoor pollution models
       7.3.11 Measurement of mean ventilation rates
       7.3.12 Aim of quality control with parallel
              measurements involving different methods
8 Selection of a sampling method
   8.1 Sources of information on the maintenance of diffusive
       samplers
   8.2 Selection of a sampler
9 Requirements for training
10 Quality assurance and quality control
Annex A (informative) Types of diffusive samplers
Annex B (informative) Limit values/Guideline values
Annex C (informative) Calculation of diffusion coefficients and
                      uptake rates
   C.1 Calculation of diffusion coefficients
   C.2 Simple method to calculate uptake rates
   C.3 Literature on values of diffusive coefficients
Annex D (informative) Characteristics of some diffusive samplers
Bibliography

Provides guidelines for the selection, use and maintenance of diffusive samplers used to analyse gaseous pollutants in indoor air including measurement strategy and planning.