Norm

NEN-EN-ISO 22854:2016 en

Vloeibare aardolieproducten - Bepaling van koolwaterstoffen en oxygenaten in benzine en ethanolbrandstof (E85) voor motorvoertuigen - Multidimensionele gaschromatografische methode

106,87

Over deze norm

Status Definitief
Aantal pagina's 19
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-04-2016
Taal Engels
NEN-EN-ISO 22854 specifies the gas chromatographic (GC) method for the determination of saturated, olefinic and aromatic hydrocarbons in automotive motor gasoline and ethanol (E85) automotive fuel. Additionally, the benzene content, oxygenate compounds and the total oxygen content can be determined. This International Standard defines two procedures, A and B. Procedure A is applicable to automotive motor gasoline with total aromatics of up to 50 % (V/V); total olefins from about 1,5 % (V/V) up to 30 % (V/V); oxygenates from 0,8 % (V/V) up to 15 % (V/V); total oxygen from about 1,5 % (m/m) to about 3,7 % (m/m); and benzene of up to 2 % (V/V). The system can be used for ethers with 5 or more C atoms up to 22 % (V/V) but the precision has not been established up to this level. Although this test method can be used to determine higher-olefin contents of up to 50 % (V/V), the precision for olefins was tested only in the range from about 1,5 % (V/V) to about 30 % (V/V). Although specifically developed for the analysis of automotive motor gasoline that contains oxygenates, this test method can also be applied to other hydrocarbon streams having similar boiling ranges, such as naphthas and reformates. Procedure B describes the procedure for the analysis of oxygenated groups (ethanol, methanol, ethers, C3 - C5 alcohols) in ethanol (E85) automotive fuel containing ethanol between 50 % (V/V) and 85 % (V/V). The gasoline is diluted with an oxygenate-free component to lower the ethanol content to a value below 20 % (V/V) before the analysis by GC. If the ethanol content is unknown, it is advisable to use a dilution of 4:1 when analysing the sample. The sample can be fully analysed including hydrocarbons. Precision data for the diluted sample are only available for the oxygenated groups.

Details

ICS-code 75.080
Nederlandse titel Vloeibare aardolieproducten - Bepaling van koolwaterstoffen en oxygenaten in benzine en ethanolbrandstof (E85) voor motorvoertuigen - Multidimensionele gaschromatografische methode
Engelse titel Liquid petroleum products - Determination of hydrocarbon types and oxygenates in automotive-motor gasoline and in ethanol (E85) automotive fuel - Multidimensional gas chromatography method
Vervangt
Normatieve verwijzingen
  • 98/70/EG, Kwaliteit benzine en diesel

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