NEN EN ISO 14956 : 2002
Current
The latest, up-to-date edition.
AIR QUALITY - EVALUATION OF THE SUITABILITY OF A MEASUREMENT METHOD BY COMPARISON WITH A REQUIRED MEASUREMENT UNCERTAINTY
12-01-2013
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 measurand 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
|
PublisherName |
Netherlands Standards
|
Status |
Current
|
Standards | Relationship |
UNE-EN ISO 14956:2003 | Identical |
DIN EN ISO 14956:2003-01 | Identical |
UNI EN ISO 14956 : 2004 | Identical |
ISO 14956:2002 | Identical |
EN ISO 14956:2002 | Identical |
BS EN ISO 14956:2002 | Identical |
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