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Norm

ÖNORM EN ISO 8754

Issue date: 2004 01 01

Petroleum products - Determination of sulfur content - Energy-dispersive X-ray fluorescence spectrometry (ISO 8754:2003)

This International Standard specifies a method for the determination of the sulfur content of petroleum products, such as naphthas, unleaded motor gasolines, middle dist...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German | English | Download GER/ENG
This International Standard specifies a method for the determination of the sulfur content of petroleum products, such as naphthas, unleaded motor gasolines, middle distillates, residual fuel oils, base lubricating oils and components. The method is applicable to products having sulfur contents in the range 0,03 % (m/m) to 5,00 % (m/m). NOTE For the purposes of this International Standard, the term "% (m/m)" is used to represent the mass fraction of a material. Heavy metal additives, such as lead alkyls, may interfere with the determination. Elements such as silicon, phosphorus, calcium, oxygen, potassium, zinc, molybdenum, barium and halogens interfere, if present in concentrations of more than a few hundred milligrams per kilogram. Some modern instruments allow the analyst to compensate for matrix and spectral interferences by spectra deconvolution and inter-element correction by multiple regression. For samples varying in composition of aromatic hydrocarbons and paraffinic hydrocarbons, the ratio of carbon to hydrocarbon in a sample (C/H ratio) may also interfere with the determination, when the ratio of the sample differs by one or more from that of the reference materials from which the calibration is obtained.
ÖNORM EN ISO 8754
2004 01 01
Petroleum products - Determination of sulfur content - Energy-dispersive X-ray fluorescence spectrom...
Norm
ÖNORM EN ISO 8754
1995 04 01
Petroleum products - Determination of sulfur content - Energy-dispersive-X-ray fluorescence method (...
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