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DIN EN ISO 14956:2003-01

Current

Current

The latest, up-to-date edition.

AIR QUALITY - EVALUATION OF THE SUITABILITY OF A MEASUREMENT PROCEDURE BY COMPARISON WITH A REQUIRED MEASUREMENT UNCERTAINTY

Available format(s)

Hardcopy , PDF

Language(s)

English, German

Published date

01-01-2003

€107.48
Excluding VAT

Foreword
Introduction
1 Scope
2 Normative reference
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Requirements
   6.1 Methods and materials
   6.2 Performance characteristics
   6.3 Required measurement quality
7 Required performance related to dynamic conditions
   7.1 General
   7.2 Response time
8 Required performance related to stationary conditions
   8.1 Analytical function, model function and variance
       function
   8.2 Identification of sources of uncertainty
   8.3 Assignment of sources of uncertainty to performance
       characteristics
   8.4 Definition and quantification of conditions of operation
       of the measurement system
   8.5 Quantification of the impact of selected performance
       characteristics as partial standard uncertainties
   8.6 Estimation of the combined standard uncertainty
   8.7 Estimation of the expanded uncertainty
   8.8 Evaluation of compliance with the required measurement
       quality
9 Field verification
10 Report
Annex A (informative) - Default ranges of chemical interferents
Annex B (normative) - Coverage factors derived from effective
                        degrees of freedom
Annex C (informative) - Example of an assessment of compliance
                        of UV fluorescence method for SO[2] with
                        requirements on ambient air quality
Annex D (informative) - Examples of field verification programmes
Bibliography

States, for the field of air quality measurement procedures, the: - estimation of measurement uncertainty from actual or claimed values of all important performance characteristics of a method under stationary conditions; - assessment of whether or not specified values of these performance characteristics comply with the required quality of a measured value at a stated measured value; - evaluation of the applicability of the measurement method based on laboratory performance and confirmatory field test; - establishment of requirements on dynamic behaviour of instruments.

DocumentType
Standard
Pages
32
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Current

ISO 7935:1992 Stationary source emissions — Determination of the mass concentration of sulfur dioxide — Performance characteristics of automated measuring methods
ISO 6879:1995 Air quality — Performance characteristics and related concepts for air quality measuring methods
ISO 11222:2002 Air quality — Determination of the uncertainty of the time average of air quality measurements
ISO 9169:2006 Air quality Definition and determination of performance characteristics of an automatic measuring system

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