1、BRITISH STANDARD BS EN 27627-1:1993 ISO 7627-1: 1983 Hardmetals Chemical analysis by flame atomic absorption spectrometry Part 1: General requirements The European Standard EN27627-1:1993 has the status of a British Standard UDC 669.018.25:620.1:543.422BSEN27627-1:1993 This British Standard, having
2、been prepared under the directionof the Iron and Steel Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15June1993 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ISM/65 Special announcement i
3、n BSINews January1993 ISBN 0 580 21930 5 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belg
4、ium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland
5、 National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y
6、Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation UnitedKingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN27627-1:1993 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover N
7、ational foreword ii Foreword 2 1 Scope 3 2 Field of application 3 3 Principle 3 4 Interfering elements 3 5 Reagents 3 6 Apparatus 3 7 Sampling 3 8 Procedure 3 9 Test report 3 National annex NA (informative) Committees responsible Inside back cover Table ISO7627 part number, elements and ranges cover
8、ed in the relevant part 3BSEN27627-1:1993 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Iron and SteelStandards Policy Committee and is the English language version of EN27627-1:1993 Chemical analysis by flame atomic absorption spectrometry Part1
9、: General requirements, published by the European Committee for Standardization (CEN). It is identical with ISO 7627-1:1983, prepared by Technical Committee119, Powder metallurgy, of the International Organization for Standardization (ISO) with the active participation of the UK. This British Standa
10、rd supersedes BS5600-4.17.1:1986, which is withdrawn. This edition makes no technical changes to the standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Britis
11、h Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have
12、 had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 27627-1 April 1993 UDC 669.018.25:620.1:543.422 Descriptors: Powder metallurgy, hard metals, chemical analysis, atomic absorption spectrophotomet
13、ry, chemical element, minimum contents, maximum contents, carbides English version HardmetalsChemical analysis by flame atomic absorption spectrometryPart 1: General requirements (ISO 7627-1:1983) Mtaux-dursAnalyse chimique par spectromtrie dabsorption atomique dans la flammePartie 1: Caractristique
14、s gnrales (ISO 7627-1:1983) HartmetalleChemische Analyse durch Flammenabsorptionsspektrometrie Teil 1: Allgemeine Anforderungen (ISO 7627-1:1983) This European Standard was approved by CEN on 1993-04-02. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co
15、nditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in thr
16、ee official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Au
17、stria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: r
18、ue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 27627-1:1993EEN27627-1:1993 BSI 01-2000 2 Foreword In1992, ISO7627-1:1983 Hardmetals Chemicalanalysis by flame atomic absorption spectrometryPart 1: General requirements was submitted to the CEN Primary Questionnai
19、re procedure. Following the positive result of the CEN/CS Proposal ISO 7627-1:1983 was submitted to the CEN Formal Vote. The result of the Formal Vote was positive. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement,
20、at the latest by October1993, and conflicting national standards shall be withdrawn at the latest by October1993. According to the Internal Regulations of CEN/CENELEC, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece,
21、Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom.EN27627-1:1993 BSI 01-2000 3 1 Scope This part of ISO7627 lays down general requirements for the chemical analysis of hardmetals by flame atomic absorption. Subsequent parts of this Inter
22、national Standard (see theTable) specify methods for determination of the content of the following elements by flame atomic absorption spectrometry. calcium cobalt chromium iron potassium magnesium manganese molybdenum sodium nickel titanium vanadium 2 Field of application The method is applicable t
23、o a) carbides of chromium, niobium, tantalum, titanium, tungsten, vanadium, b) mixtures of these carbides and binder metals, c) all grades of presintered or sintered hardmetals, produced from these carbides, d) coated hardmetals, after total removal of coating, with the elements shown in theTable. T
24、able ISO7627 part number, elements and ranges covered in the relevant part NOTEThe method for the determination of chromium also permits determination of iron, nickel, cobalt and manganese within the range0,01 to2% (m/m). 3 Principle Dissolution of a test portion and determination by flame atomic ab
25、sorption spectrometry. 4 Interfering elements Effects of interference are minimized by using a similar matrix in test and calibration solutions. 5 Reagents During the analysis, use only reagents of recognized analytical grade and only double-distilled water or water of equivalent purity. NOTEIn cert
26、ain cases, reagents of higher purity should be used. 6 Apparatus Ordinary laboratory apparatus and atomic absorption spectrometry apparatus. NOTEAll measurement parameters should be chosen to give optimum sensitivity. Single-element hollow-cathode lamps are recommended. Therecommended instrument req
27、uirements are shown in the relevant parts of this International Standard. 7 Sampling 7.1 If necessary, the sample may be crushed in a mortar made of a material which does not alter the sample composition. If the sample contains lubricant, this shall be extracted before the analysis. 7.2 The analysis
28、 shall be carried out on at least three test portions. 8 Procedure The procedure is given in the relevant parts of this International Standard. 9 Test report The test report shall include the following information: a) a reference to this International Standard; b) all details necessary for identific
29、ation of the test sample; c) the results obtained,i.e.the arithmetical mean; d) all operations not specified by this International Standard, or regarded as optional; e) details of any occurrence which may have affected the result. Relevant part of ISO7627 Element Range % (m/m) 7627-2 7627-3 7627-4 7
30、627-5 7627-6 Ca, K, Mg, Na Co, Fe, Mn, Ni Mo, Ti, V Co, Fe, Mn, Mo, Ni, Ti, V Cr 0,001to0,02 0,01to0,5 0,01to0,5 0,5to2 0,01to24 blankBSEN27627-1:1993 BSI 01-2000 National annex NA (informative) Committees responsible The UnitedKingdom participation in the preparation of this European Standard was e
31、ntrusted by the Iron and Steel Standards Policy Committee (ISM/-) to Technical Committee ISM/65, upon which the following bodies were represented: British Hardmetal Association Federation of British Engineers (Test Manufacturers) Society of Motor Manufacturers and Traders Limited Coopted memberBS EN
32、 27627-1:1993 ISO7627-1: 1983 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. R
33、evisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or a
34、mbiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers au
35、tomatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BS
36、I implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electro
37、nic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of sta
38、ndards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted und
39、er the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of imple
40、menting the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
