NF EN ISO 20846

NF EN ISO 20846

November 2011
Standard Current mandatory application standard
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Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method

ISO 20846:2011 specifies an ultraviolet (UV) fluorescence test method for the determination of the sulfur content of motor gasolines containing up to 3,7 % (m/m) oxygen [including those blended with ethanol up to about 10 % (V/V)], and of diesel fuels, including those containing up to about 10 % (V/V) fatty acid methylester (FAME), having sulfur contents in the range 3 mg/kg to 500 mg/kg. Other products can be analysed and other sulfur contents can be determined according to this test method, however, no precision data for products other than automotive fuels and for results outside the specified range have been established for ISO 20846:2011. Halogens interfere with this detection technique at concentrations above approximately 3 500 mg/kg.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2011

Release date

janvier 2023 par NF EN ISO 20846 de 2011

Number of pages

19 p.

Reference

NF EN ISO 20846

ICS Codes

75.080   Petroleum products in general
75.160.20   Liquid fuels

Classification index

M07-109

Print number

1 - 18/11/2011

International kinship

ISO 20846:2011

European kinship

EN ISO 20846:2011
Sumary
Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method

ISO 20846:2011 specifies an ultraviolet (UV) fluorescence test method for the determination of the sulfur content of motor gasolines containing up to 3,7 % (m/m) oxygen [including those blended with ethanol up to about 10 % (V/V)], and of diesel fuels, including those containing up to about 10 % (V/V) fatty acid methylester (FAME), having sulfur contents in the range 3 mg/kg to 500 mg/kg. Other products can be analysed and other sulfur contents can be determined according to this test method, however, no precision data for products other than automotive fuels and for results outside the specified range have been established for ISO 20846:2011. Halogens interfere with this detection technique at concentrations above approximately 3 500 mg/kg.

Replaced standards (1)
NF EN ISO 20846
August 2004
Standard Cancelled
Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method

<p>ISO 20846:2004 specifies an ultraviolet fluorescence test method for the determination of the sulfur content of motor gasolines, including those containing up to 2,7 %(<i>m/m</i>) oxygen, and of diesel fuels, including those containing up to 5 % (<i>V</i>/<i>V</i>) fatty acid methylester (FAME), having sulfur contents in the range 3 mg/kg to 500 mg/kg. Other products may be analysed and other sulfur contents may be determined according to this test method, however, no precision data for products other than automotive fuels and for results outside the specified range have been established for ISO 20846:2004. Halogens interfere with this detection technique at concentrations above approximately 3 500 mg/kg.</p> <p>Some process catalysts used in petroleum and chemical refining may be polluted when trace amounts of sulfur-bearing materials are contained in the feedstocks.This test method may be used to determine sulfur in process feeds and may also be used to control sulfur in effluents.</p>

Table of contents
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  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Principe
    2
  • 4 Produits et réactifs
    2
  • 5 Appareillage
    3
  • 6 Échantillonnage
    5
  • 7 Montage de l'appareillage
    5
  • 8 Vérification et étalonnage de l'appareil
    6
  • 8.1 Étalonnage multipoints
    6
  • 8.2 Étalonnage mono-point
    7
  • 8.3 Vérification
    8
  • 9 Mode opératoire
    9
  • 10 Calculs
    9
  • 10.1 Cas de l'étalonnage multipoints
    9
  • 10.2 Cas de l'étalonnage mono-point
    10
  • 10.3 Calculs
    11
  • 11 Expression des résultats
    11
  • 12 Fidélité
    11
  • 12.1 Généralités
    11
  • 12.2 Répétabilité, r
    11
  • 12.3 Reproductibilité, R
    11
  • 13 Rapport d'essai
    12
  • Bibliographie
    13
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