BS EN ISO 20884:2019
$102.76
Petroleum products. Determination of sulfur content of automotive fuels. Wavelength-dispersive X-ray fluorescence spectrometry
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 16 |
This document specifies a wavelength-dispersive X-ray fluorescence (WDXRF) test method for the determination of the sulfur content of liquid, homogeneous automotive fuels from 5Â mg/kg to 500Â mg/kg, which have a maximum oxygen content of 3,7Â %Â (m/m). This product range covers:
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diesel fuels containing up to about 30Â %Â ( V/V) fatty acid methyl esters (FAME),
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motor gasolines containing up to about 10Â %Â ( V/V) ethanol,
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synthetic fuels such as hydrotreated vegetable oil (HVO) and gas to liquid (GTL) having sulfur contents in the range of 5Â mg/kg to 45Â mg/kg.
Products with higher oxygen content show significant matrix effects, e.g. pure FAME used as biodiesel, nevertheless, pure FAME can be analysed when the corresponding procedures are followed (see 5.3 and 8.1).
Other products can be analysed with this test method, though precision data for products other than those mentioned have not been established for this document.
NOTEÂ 1 Sulfur contents higher than 500Â mg/kg can be determined after sample dilution, however, the precision was not established for diluted samples.
For the purposes of this document, “% ( m/m)� and “% ( V/V)� are used to represent the mass fraction, w, and the volume fraction, φ, of a material respectively.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | European foreword Endorsement notice |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Principle 5 Reagents 6 Apparatus |
| 9 | 7 Sampling 8 Calibration solutions 8.1 Blank solution 8.2 Stock solution 8.3 Calibration solutions |
| 10 | 8.4 Storage and stability of the calibration solutions 9 Settings 9.1 Measuring parameters 9.2 Optimization 9.3 Performance check of the spectrometer |
| 11 | 10 Calibration 10.1 General 10.2 Calibration solutions 10.3 Calibration curves |
| 12 | 10.4 Checking 11 Procedure 11.1 Samples with sulfur contents between 5 mg/kg and 60 mg/kg 11.2 Samples with sulfur contents between 60 mg/kg and 500 mg/kg 12 Expression of results |
| 13 | 13 Precision 13.1 General 13.2 Repeatability, r 13.3 Reproducibility, R 14 Test report |
| 14 | Annex A (informative) Good practices |
| 15 | Bibliography |
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BS EN ISO 20884:2019+A1:2021:2022 Edition
Petroleum products. Determination of sulfur content of automotive fuels. Wavelength-dispersive X-ray fluorescence spectrometry Published By…
