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BSI 23/30472312 DC:2023 Edition

BSI 23/30472312 DC:2023 Edition

$13.70

BS EN 16339 Ambient air. Method for the determination of the concentration of nitrogen dioxide by diffusive sampling

Published By Publication Date Number of Pages
BSI 2023 57
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PDF Catalog

PDF Pages PDF Title
1 30472312-NC.pdf
3 41_e_stf.pdf
6 European foreword
7 Introduction
8 1 Scope
2 Normative references
3 Terms and definitions
10 4 Description of samplers
4.1 Principle
11 4.2 Diffusive samplers
4.2.1 Description
4.2.2 Preparation
12 4.2.3 Storage and shelf-life of samplers
4.2.4 Storage after sampling
4.2.5 Chemical interferences
4.3 Protective devices
4.3.1 General
4.3.2 Protective shelter
13 4.3.3 Protective filter
4.4 Instructions for use
5 Analysis
5.1 General
14 5.2 Colorimetric method
5.2.1 General
5.2.2 Calibration
5.2.3 Extraction
15 Table 1 — Extraction conditions and extract stabilities for analysis by colorimetry
5.2.4 Analysis
5.3 Ion chromatography method
5.3.1 General
5.3.2 Calibration
5.3.3 Extraction
16 Table 2 — Extraction conditions and extract stabilities for analysis by ion chromatography
5.3.4 Analysis
6 Calculation of the concentration of nitrogen dioxide
6.1 Diffusive sampling rate
17 6.2 Mass concentration
18 6.3 Conversion to standard conditions of temperature and pressure
7 Quality control/quality assurance
19 8 Measurement strategy
8.1 Calibration of the diffusive sampling rate
8.2 Siting criteria
20 8.3 Use of replicates
8.4 Exposure
8.5 Co-location sites
8.6 Auxiliary information
21 9 Performance requirements and measurement uncertainty
10 Report
23 Annex A (normative) Description of tube-type samplers
A.1 Tube-type sampler with a cylindrical tube
A.1.1 Specifications of the sampler
Table A.1 — Specifications of the tube type sampler with a cylindrical tube
A.1.2 Description
A.1.3 Preparation
25 Figure A.3 — Tube type sampler with a cylindrical tube with shelter
A.2 Tube-type sampler with a slightly conical tube
A.2.1 Specifications of the sampler
26 Table A.2 — Specifications of the tube type sampler with a slightly conical tube
A.2.2 Description
27 Figure A.4 — Tube-type sampler with a slightly conical tube
Figure A.5 — Protective filter (glass frit)
28 Figure A.6 — Protective shelter for NO2 sampler
A.2.3 Preparation
A.2.4 Extraction and analysis
29 Annex B (informative) Description of other samplers
B.1 Radial sampler
B.1.1 Specifications of the sampler
Table B.1 — Specifications of the radial sampler
B.1.2 Description
30 Figure B.1 — Radial sampler design
Figure B.2 — Radial sampler supporting plate
Figure B.3 — Radial sampler shelter
B.1.3 Preparation
31 B.1.4 Extraction and analysis
B.2 Badge-type sampler
B.2.1 Specifications of the sampler
32 Table B.2 — Specifications of the badge-type sampler
33 Figure B.5 — Badge-type sampler installed using a protective shelter
B.2.2 Description
B.2.3 Preparation
34 B.2.4 Analytical method
35 Annex C (informative) Estimation of the diffusive sampling rate of the samplers
C.1 General
C.2 Theoretical calculation
36 Table C.1 — Diffusive sampling rates calculated using Fick’s first law of diffusion
C.3 Experimental approach
C.3.1 Field approach
37 Table C.2 — Experimental diffusive sampling rate by determination with the chemiluminescence method
38 C.3.2 Laboratory approach
40 Annex D (informative) Measurement uncertainty
D.1 Direct approach
D.1.1 General
42 Figure D.1 — 14 day exposure diffusion tube results from 24 sites in 2018
43 D.2 GUM approach
D.2.1 Measurement formula
44 D.2.2 Combined standard uncertainty
D.2.3 Expanded relative uncertainty
D.2.4 Uncertainty contributions
D.2.4.1 Diffusive sampling rate
D.2.4.2 Mass of nitrite in sample
D.2.4.2.1 General
45 D.2.4.2.2 Mass of nitrite in calibration standards
D.2.4.2.3 Lack of fit of the calibration function
D.2.4.2.4 Analytical repeatability
D.2.4.2.5 Response drift between calibrations
46 D.2.4.3 Mass of nitrite in blank
D.2.4.4 Exposure time
D.2.4.5 Average temperature and pressure during exposure
47 D.2.4.6 Worked example
Table D.3 — Uncertainty budget
48 D.2.4.7 Between-laboratory uncertainty
49 Annex E (informative) Reagents and equipment
E.1 Introduction
E.2 Reagents
E.2.1 Ultrapure water
E.2.2 Sodium nitrite
E.2.3 Orthophosphoric acid (PA)
E.2.4 Sulphanilamide (SA)
E.2.5 Sulphanilic acid (Sac)
E.2.6 N-(naphthyl-1) ethylene diamine dihydrochloride (NEDD)
E.2.7 Colorimetric reagent
50 E.2.8 Sodium carbonate
E.2.9 Sodium bicarbonate
E.2.10 Eluent for ion chromatography
E.3 Equipment
E.3.1 Colorimeter
E.3.2 Ion chromatograph
E.3.3 Sample shaker
E.3.4 Oven
51 E.3.5 Balance
E.3.6 Desiccator
52 Annex F (informative) Validation data of the use of protective devices
Figure F.1 — Photograph showing diffusion tubes being deployed at NERC supersite in Manchester
Table F.1 — Summary of NO2 tube measurement results
53 Annex G (informative) Significant technical changes
54 Bibliography

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