DIN EN 14662-1:2005-08
Current
The latest, up-to-date edition.
AMBIENT AIR QUALITY - STANDARD METHOD FOR MEASUREMENT OF BENZENE CONCENTRATIONS - PART 1:PUMPED SAMPLING FOLLOWED BY THERMAL DESORPTION AND GAS CHROMATOGRAPHY
Hardcopy , PDF
English
01-01-2005
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 Setting of sampling flow rate
4.6 Sampling
4.7 Procedure
4.8 Calculation of mass concentration of benzene
4.9 Report
5 Determination of measurement uncertainty
5.1 Introduction
5.2 Parameters contributing to measurement uncertainty
6 Recommendation for use
Annex A (informative) Extrapolated retention volumes and
safe sampling volumes for benzene at 20 degree C
Annex B (informative) Description of sorbent types
Annex C (informative) Guidance on sorbent selection
Annex D (informative) Guidance on sorbent use
Annex E (informative) Determination of breakthrough volume
from gas standards
Annex G (informative) Assessment of performance indicators
and uncertainty contributions
Annex H (informative) Performance characteristics
Bibliography
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