DIN EN 14412:2004-12
Current
The latest, up-to-date edition.
INDOOR AIR QUALITY - DIFFUSIVE SAMPLERS FOR THE DETERMINATION OF CONCENTRATIONS OF GASES AND VAPOURS - GUIDE FOR SELECTION, USE AND MAINTENANCE
Hardcopy , PDF
English
01-01-2004
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
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