Reference number
ISO 20884:2019
International Standard
ISO 20884:2019
Petroleum products — Determination of sulfur content of automotive fuels — Wavelength-dispersive X-ray fluorescence spectrometry
Edition 3
2019-08
Preview
ISO 20884:2019
74314
No disponible en español
Publicado (Edición 3, 2019)
Esta norma tiene 1 modificaciones.

ISO 20884:2019

ISO 20884:2019
74314
Idioma
Formato
CHF 63
Convertir Franco suizo (CHF) a tu moneda

Resumen

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 5 mg/kg to 500 mg/kg, which have a maximum oxygen content of 3,7 % (m/m). This product range covers:

— diesel fuels containing up to about 30 % (V/V) fatty acid methyl esters (FAME),

— motor gasolines containing up to about 10 % (V/V) ethanol,

— synthetic fuels such as hydrotreated vegetable oil (HVO) and gas to liquid (GTL) having sulfur contents in the range of 5 mg/kg to 45 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.

NOTE 1 Sulfur contents higher than 500 mg/kg can be determined after sample dilution, however, the precision was not established for diluted samples.

NOTE 2 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.

Informaciones generales

  •  : Publicado
     : 2019-08
    : Norma Internacional en proceso de revisión sistemática [90.20]
  •  : 3
     : 9
  • ISO/TC 28
    75.080  75.160.30 
  • RSS actualizaciones

 Modificaciones

Las enmiendas se emiten cuando se decide que puede ser necesario agregar nuevo material a un documento de normalización existente. También pueden incluir correcciones editoriales o técnicas que deban aplicarse al documento existente.

Amendment 1

Addition of the SSD detector to the Monochromatic excitation part of Table 1

Edición 2021

ISO 20884:2019/Amd 1:2021
81121
Idioma
Formato
CHF 18
Convertir Franco suizo (CHF) a tu moneda

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