Kapalné ropné výrobky - Stanovení obsahu síry v motorovém palivu E85 - Metoda vlnově disperzní rentgenové fluorescenční spektrometrie (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.3.2018
Designation standards: ČSN EN 16997
Classification mark: 656171
Catalog number: 504203
Publication date standards: 1.3.2018
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This European Standard specifies a wavelength-dispersive X-ray fluorescence (WDXRF) test method for the determination of the sulfur content in ethanol (E85) automotive fuel [3], containing ethanol between 50 % (V/V) and 85 % (V/V), from 5 mg/kg to 20 mg/kg, using instruments with either monochromatic or polychromatic excitation. NOTE 1 - Sulfur contents higher than 20 mg/kg can be determined after sample dilution with an appropriate solvent. However, the precision was not established for diluted samples. NOTE 2 - For the purposes of this European Standard, the terms "% (m/m)" and "% (V/V)" are used to represent the mass fraction and the volume fraction of a material respectively