ISO INTERNATIONAL STANDARD 10478 First edition 1994-08-01 ANsI Internat Doc Sec Petroleum products Determination of aluminium and silicon in fuel oils - Inductively coupled plasma emission and atomic absorption spectroscopy methods Produits pétroliers Détermination de I'aluminium et du silicium dans les combustibles -Méthodesparspectroscopied'émissionaplasma induit et spectroscopie d'absorptionatomique ISO Reference number ISO 10478:1994(E) No reproduction or networking permited without license from IHS Not for Resale ISO 10478:1994(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work.IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. ISO/TC28,Petroleumproductsandlubricants. 0ISO1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced microfilm, without permission in writing from the publisher. international Organization for Standardization CasePostale56·CH-1211Geneve20·Switzerland Printed inSwitzerland for Standardization No reproduction or networking permitted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO ISO10478:1994(E) Petroleum products -- Determination of aluminium and silicon in fuel oils -- Inductively coupled plasma emission and atomic absorption spectroscopy methods WARNING The use of this International Standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems 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. 1 Scope Is0 1042:1983,Laboratory glassware One-mark volumetricflasks. This International Standard specifies a method for ISO 3696:1987, Water for analytical laboratory use determining the aluminium and silicon contents of fuel oils at concentrations between 5 mg/kg and Specification and test methods. 150 mg/kg for aluminium and 10 mg/kg and 250mg/kg ISO 3819:1985, Laboratory glassware - Beakers. for silicon using inductively coupled plasma emission and atomic absorption spectroscopy ISO 4788:1980, Laboratory glassware - Graduated measuring cylinders. 3 Principle 2 Normative references A weighed quantity of homogenized sample is heated The following standards contain provisions which, in a clean platinum basin, the combustible material through reference in this text, constitute provisions removed by burning and the carbon finally removed of this International Standard. At the time of publi- by heating in a muffle furnace at a temperature of cation, the editions indicated were valid. All standards 550 °C ± 25 °C. The residue is fused with a dilithium are subject to revision, and parties to agreements tetraborate/lithium fluoride flux, the fused mixture di- based on this International Standard are encouraged gested in a solution of tartaric acid and hydrochloric to investigate the possibility of applying the most re- acid, and diluted to volume with water. cent editions of the standards indicated below. Members of IEC and ISO maintain registers of cur- The solution is aspirated into either the plasma of an rentlyvalidInternationalStandards. inductively coupled plasma emission spectrometer (ICPES), and the emission radiation of the resonance I