ISO INTERNATIONAL STANDARD 17852 First edition 2006-06-01 Water quality Determination of mercury Method using atomic fluorescence spectrometry QualitedeI'eau-DosagedumercureMethodeparspectrometriede fluorescenceatomique Reference number ISO17852:2006(E) ISO @ ISO 2006 ISO17852:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the @ISO2006 electronic or mechanical, including photocopying and microfilm, without permission in writing from either IsO at the address below or ISO's member body in the country of the requester. ISO copyright office Casepostale56·CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2006-All rights reserved ISO 17852:2006(E) Contents Page 1 Scope 2 Normativereferences Principle . 3 2 4 Interferences N 5 Reagentsandstandards 2 6 Apparatus and instrumentation .... 5 7 Sample collection and pre-treatment. 6 8 Instrumental set up 6 9 Procedure 10 Test report 8 11 Precision. 8 Annex A (informative)Additional information .. 9 AnnexB(informative)Schematicblock diagram 10 Annex C (informative)Availability of reagents 11 Annex D (informative) Precision data 12 Bibliography 13 @ Iso 2006 - All rights reserved ili ISO17852:2006(E) Foreword IsO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. adopted by the technical committees are circulated to the member bodies for voting. Publication as an Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO17852 was prepared by Technical Committee ISO/TC 147,Water quality, Subcommittee SC2,Physical, chemicalandbiochemicalmethods. potassium dichromate solution, described in EN 13506, was replaced by a combined on site preservation and digestion procedure with thepotassium bromide-potassiumbromate reagent (see 5.4) iv ISO2006All rights reserved ISO17852:2006(E) Introduction In natural water sources, mercury compounds generally occur in very small concentrations of less than O,1 μg/l. Higher concentrations may be found, for example, in industrial waste water. and sludge. In order to fully decompose all of the mercury compounds, a digestion procedure is necessary. Digestion can be The user should be aware that particular problems could require the specification of additional marginal conditions. ISO 2006 - All rights reserved V INTERNATIONAL STANDARD ISO17852:2006(E) Water quality Determination of mercury Method using atomic fluorescence spectrometry WARNING-Persons using this International Standard should be familiar with normal laboratory practice.This standard does not purport to address all of the safety problems, if any,associated with its ensure compliance with any national regulatory conditions. IMPORTANTIt is absolutely essential that tests conducted according to this International Standard are carried out by suitably qualified staff. 1 Scope This International Standard specifies a method for the determination of mercury in drinking, surface, ground and rain water using atomic fluorescence spectrometry NOTE This International Standard may be applied to industrial and municipal waste water after an additional digestion step underapp