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ASTM D5708-05

Historical Revision

Standard Test Methods for Determination of Nickel, Vanadium, and Iron in Crude Oils and Residual Fuels by Inductively Coupled Plasma (ICP) Atomic Emission Spectrometry

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1.1 These test methods cover the determination of nickel, vanadium, and iron in crude oils and residual fuels by inductively coupled plasma (ICP) atomic emission spectrometry. Two different test methods are presented.

1.2 Test Method A (Sections and )ICP is used to analyze a sample dissolved in an organic solvent. This test method uses oil-soluble metals for calibration and does not purport to quantitatively determine or detect insoluble particulates.

1.3 Test Method B (Sections )ICP is used to analyze a sample that is decomposed with acid.

1.4 The concentration ranges covered by these test methods are determined by the sensitivity of the instruments, the amount of sample taken for analysis, and the dilution volume. A specific statement is given in . Typically, the low concentration limits are a few tenths of a mg/kg. Precision data are provided for the concentration ranges specified in Section .

1.5 &si-value;

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


These test methods cover, in single procedures, the determination of Ni, V, and Fe in crude oils and residual oils. These test methods complement Test Method D 1548, which covers only the determination of vanadium.

When fuels are combusted, vanadium present in the fuel can form corrosive compounds. The value of crude oils can be determined, in part, by the concentrations of nickel, vanadium, and iron. Nickel and vanadium, present at trace levels in petroleum fractions, can deactivate catalysts during processing. These test methods provide a means of determining the concentrations of nickel, vanadium, and iron.

SDO ASTM: ASTM International
Document Number D5708
Publication Date Nov. 1, 2005
Language en - English
Page Count 8
Revision Level 05
Supercedes
Committee D02.03
Publish Date Document Id Type View
June 1, 2020 D5708-15R20E01 Revision
Dec. 1, 2015 D5708-15 Revision
Dec. 1, 2012 D5708-12E01 Revision
Dec. 1, 2012 D5708-12 Revision
June 1, 2011 D5708-11 Revision
Nov. 1, 2005 D5708-05 Revision
Feb. 10, 2002 D5708-02 Revision
Feb. 10, 2002 D5708-00 Revision