BS EN ISO 14284-2002 Steel and iron - Sampling and preparation of samples for the determination of chemical composition《钢铁 测定化学成分用的样品的取样和制备》.pdf

1、BRITISH STANDARD BS EN ISO 14284:2002 Incorporating Corrigendum No. 1 Steel and iron Sampling and preparation of samples for the determination of chemical composition The European Standard EN ISO 14284:2002 has the status of a British Standard ICS 77.080 BS EN ISO 14284:2002 This British Standard, h

2、aving been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 10 October 2002 BSI 5 December 2002 ISBN 0 580 40510 9 National foreword This British Standard is the official English

3、language version of EN ISO 14284:2002. It is identical with ISO 14284:1996. The UK participation in its preparation was entrusted to Technical Committee ISE/18, Sampling and analysis of iron and steel, which has the responsibility to: A list of organizations represented on this committee can be obta

4、ined on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility

5、of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. ai

6、d enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages Th

7、is document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 30, the Annex ZA page and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendment

8、s issued since publication Amd. No. Date Comments 14256 Corrigendum No. 1 5 December 2002 Replacing the EN ISO foreword page and the Annex ZA pageEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO14284 September2002 ICS77.080 Englishversion SteelandironSamplingandpreparationofsamplesforthe determi

9、nationofchemicalcomposition(ISO14284:1996) FontesetaciersPrlvementetprparationdes chantillonspourladterminationdelacomposition chimique(ISO14284:1996) EisenundStahlEntnahmeundVorbereitungvonProben frdieBestimmungderchemischenZusammensetzung (ISO14284:1996) ThisEuropeanStandardwasapprovedbyCENon21Jul

10、y2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreor

11、toanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesof

12、Austria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart

13、,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO14284:2002ECORRECTED20021113 Foreword ThetextofISO14284:1996hasbeenpreparedbyTechnicalCommitteeISO/TC17“Steel“of theInternationalOrganizationforStandardization(ISO)andhasbeentak

14、enoverasENISO 14284:2002byTechnicalCommitteeECISS/TC20“Methodsofchemicalanalysisofferrous products“,thesecretariatofwhichisheldbySIS. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyMarch2003,andconflictingnational standa

15、rdsshallbewithdrawnatthelatestbyMarch2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Malta,Nether

16、lands,Norway,Portugal,Spain,Sweden,Switzerlandandthe UnitedKingdom. Endorsementnotice ThetextofISO14284:1996hasbeenapprovedbyCENasENISO14284:2002withoutany modifications. NOTENormativereferencestoInternationalStandardsarelistedinAnnexZA(normative). ENISO14284:2002INTERNATIONAL STANDARD ISO 14284 Fir

17、st edition 1996-07-01 Steel and iron - Sampling and preparation of samples for the determination of Chemical composition Fon tes et aciers - Pr - Sample that has been remelted; - Sample in the form of Chips obtained by machining; - Sample in the form of fragments obtained by commi- nution; - Sample

18、in the form of powder obtained by comminution. 3.17 test Portion: Part of the Sample for analysis, or part of the Sample taken from the melt, actually sub- mitted to analysis. In certain cases, the test Portion may be selected from the Sample product itself. NOTES 2 The following special types of te

19、st portions in the form of a solid mass obtained from a probe Sample are dis- tinguished: - test Portion in the shape of a small disc, commonly de- scribed as a slug, obtained by punching; - test Portion in the form of a small appendage, com- monly described as a lug; - test Portion in the form of a

20、 small-diameter rod, com- monly described as a pin, obtained by cutting. 3 When the Sample for analysis is in the form of Chips or powder, or when a Sample in the form of a solid mass is analysed by a thermal method, the test Portion is obtained by weighing. In the case of a physical method of analy

21、sis, the part actually analysed will constitute only a small mass of the Sample for analysis. In an Optical emission spectro- metric method, the mass sf metal consumed in an electri- cal discharge is about 0,5 mg to 1 mg; in an X-ray fluor- escence spectrometric method, the characteristic radiation

22、is produced from a very thin surface layer of the Sample. 3.18 grinding: Method of preparing a Sample of metal for a physical method of analysis in which the surface of the Sample for analysis is abraded using an abrasive wheel. 3.19 linishing: Method of preparing a Sample of metal for a physical me

23、thod of analysis in which the surface of the Sample for analysis is abraded using a flexible rotating disc or continuous belt coated with an abrasive substance. 3.20 milling: Method sf preparing Sample Chips or the surface of a Sample for a physical method of analysis in which the surface of the Sam

24、ple is ma- chined using a rotating, multi-edged cutting tool. 3.21 consignment: Quantity of metal delivered at one time. 3.22 increment: Quantity of metal obtained by sampling at one time from a consignment. 4 Requirements for sampling and Sample preparation 4.1 General This clause covers the genera

25、l requirements for the Sample, and for the sampling and Sample preparation of iron and steel. Special requirements apply to each category of liquid and solid metal and these are con- sidered in the relevant subclause. The sequence of sampling and Sample preparation of liquid iron and steel, and cast

26、 iron and steel products is shown in figure 1. Special considerations apply to pig irons (see clause 8). 4.2 Sample 4.21 Quality Sampling practices shall be designed to provide a Sample for analysis that is representative of the mean Chemical composition of the melt or the Sample product. ENISO14284:2002