NBN EN 14662-4 : 2005
Current
The latest, up-to-date edition.
AMBIENT AIR QUALITY - STANDARD METHOD FOR MEASUREMENT OF BENZENE CONCENTRATIONS - PART 4: DIFFUSIVE SAMPLING FOLLOWED BY THERMAL DESORPTION AND GAS CHROMATOGRAPHY
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Method description
4.1 Principle
4.2 Reagents and materials
4.3 Apparatus
4.4 Sample tube conditioning
4.5 Sampling
4.6 Procedure
4.7 Calculation of mass concentration of benzene
4.8 Report
5 Determination of measurement uncertainty
5.1 Introduction
5.2 Parameters contributing to measurement uncertainty
6 Recommendations for use
Annex A (informative) Diffusive uptake rates for benzene on
sorbent tubes (without membrane)
Annex B (informative) Description of sorbent types
Annex C (informative) Guidance on sorbent selection
Annex D (informative) Guide on sorbent use
Annex E (informative) Assessment of performance indicators and
uncertainty contributions
Annex F (informative) Performance characteristics
Bibliography
Specifies generic methodology selected as the basis of the European Union for the determination of benzene in ambient air for the purpose of comparison of measurement results with limit values with a one-year reference period.
| DocumentType |
Standard
|
| PublisherName |
Belgian Standards
|
| Status |
Current
|
| Standards | Relationship |
| UNE-EN 14662-4:2006 | Identical |
| EN 14662-4:2005 | Identical |
| DIN EN 14662-4:2005-08 | Identical |
| UNI EN 14662-4 : 2005 | Identical |
| BS EN 14662-4:2005 | Identical |
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