EN ISO 4829-1-2018 en Steel and cast iron - Determination of total silicon contents - Reduced molybdosilicate spectrophotometric method - Part 1 Silicon contents between 0 05 % and.pdf
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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Steel and cast iron - Determination of total silicon contents - Reduced molybdosilicate spectrophotometric methodPart 1: Silicon contents between 0,05 % and 1,0 %BS EN ISO 48291:2018National forewordThis British Standar
2、d is the UK implementation of EN ISO 48291:2018. It is identical to ISO 48291:2018. It supersedes BS 62003.26.3:1987, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/102, Methods of Chemical Analysis for Iron and Steel.A list of organizations repre
3、sented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 58
4、0 89017 8ICS 77.080.01Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDAR
5、DBS EN ISO 48291:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 4829-1May 2018ICS 77.080.01 Supersedes EN 248291:1990EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN
6、Ref. No. EN ISO 48291:2018: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersSteel and cast iron Determination of total silicon contents Reduced molybdosilicate spectrophotometric method Part 1: Silicon contents between 0,05 % and 1,0 % (ISO 48291:2
7、018)Aciers et fontes Dtermination du silicium total Mthode spectrophotomtrique au silicomolybdate rduit Partie 1: Teneurs en silicium comprises entre 0,05 % et 1,0 % (ISO 48291:2018)Stahl und Gusseisen Bestimmung des Gesamtsiliciumanteils Spektrophotometrische Methode mit reduziertem Molybdatosilica
8、t Teil 1: Siliciumanteile zwischen 0,05 % und 1,0 % (ISO 48291:2018)This European Standard was approved by CEN on 6 March 2018.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard
9、without any alteration. Uptodate lists and bibliographical references concerning such national standards may be obtained on application to the CENCENELEC Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other
10、language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Den
11、mark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English Ve
12、rsionEN ISO 4829-1:2018 (E)European forewordThis document (EN ISO 48291:2018) has been prepared by Technical Committee ISO/TC 17 “Steel“ in collaboration with Technical Committee ECISS/TC 102 “Methods of chemical analysis for iron and steel” the secretariat of which is held by SIS.This European Stan
13、dard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2018, and conflicting national standards shall be withdrawn at the latest by November 2018.Attention is drawn to the possibility that some of the elements of
14、 this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN 248291:1990.According to the CENCENELEC Internal Regulations, the national standards organizations of the following countries are bound to i
15、mplement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma
16、nia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 4829-1:2018 has been approved by CEN as EN ISO 4829-1:2018 without any modification.2BS EN ISO 48291:2018ISO 4829-1:2018Foreword iv1 Scope . 12 Normative references 13 Terms a
17、nd definitions . 14 Principle 15 Reagents 26 Apparatus . 37 Sampling 48 Procedure. 48.1 Test portion 48.2 Blank test . 48.3 Determination . 48.3.1 Dissolution of the test portion . 48.3.2 Treatment of insoluble residue . 58.3.3 Preparation of the test solution 58.3.4 Development of the colour 58.3.5
18、 Spectrophotometric measurements . 68.4 Establishment of the calibration curve 68.4.1 Preparation of the calibration solutions 68.4.2 Spectrophotometric measurements . 68.4.3 Plotting of the calibration curves 69 Expression of results 79.1 Method of calculation 79.2 Precision . 810 Test report . 8An
19、nex A (informative) Additional information on the international interlaboratory test 9Annex B (informative) Graphical representation of precision data .10Bibliography .11 ISO 2018 All rights reserved iiiContents PageBS EN ISO 48291:2018ISO 4829-1:2018ForewordISO (the International Organization for S
20、tandardization) 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 ri
21、ght to be represented on that committee. International organizations, governmental and nongovernmental, 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. The procedure
22、s used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial ru
23、les of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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. Details of any patent rights ident
24、ified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation
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