DIN EN ISO 20988 E : 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Basic concepts
   5.1 Outline
   5.2 Measurement uncertainty
   5.3 Correction for systematic effects
   5.4 Provision of input data
6 Problem specification
   6.1 Objectives
   6.2 Measurement
   6.3 Uncertainty parameters
   6.4 Input data
       6.4.1 General
       6.4.2 Assessment of representativeness
   6.5 Effects not described by series of
       observations
7 Statistical analysis
   7.1 Objectives
   7.2 Indirect approach
   7.3 Direct approach
   7.4 Statistical validity
8 Estimation of variances and covariances
   8.1 General
   8.2 Variance estimates of Type A
   8.3 Variance estimates of Type B
   8.4 Estimation of covariances
9 Evaluation of uncertainty parameters
   9.1 Objective
   9.2 Combined standard uncertainty
   9.3 Expanded uncertainty
       9.3.1 General
       9.3.2 Expanded uncertainty of results exhibiting
             a Gaussian distribution
10 Reporting
Annex A (informative) Testing a coverage probability
Annex B (informative) Type A evaluation methods for
                      experimental designs A1 to A8
Annex C (informative) Examples
Bibliography
National Annex NA (informative) Bibliography

Provides comprehensive guidance and specific statistical procedures for uncertainty estimation in air quality measurements including measurements of ambient air, stationary source emissions, indoor air, workplace atmospheres and meteorology.