EN ISO 13944-2012 en Lubricated metal-powder mixes - Determination of lubricant content - Soxhlet extraction method《润滑metal-powder混合 润滑剂含量测定采用索氏提取方法》.pdf
《EN ISO 13944-2012 en Lubricated metal-powder mixes - Determination of lubricant content - Soxhlet extraction method《润滑metal-powder混合 润滑剂含量测定采用索氏提取方法》.pdf》由会员分享,可在线阅读,更多相关《EN ISO 13944-2012 en Lubricated metal-powder mixes - Determination of lubricant content - Soxhlet extraction method《润滑metal-powder混合 润滑剂含量测定采用索氏提取方法》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 13944:2012Lubricated metal-powder mixes Determination of lubricant content Soxhlet extraction methodBS EN ISO 13944:2012 BRITISH STANDARDNational forewordThis British S
2、tandard is the UK implementation of EN ISO 13944:2012. It supersedes BS EN ISO 13944:2006, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/65, Sintered metal components.A list of organizations represented on this committee can be obtained on reques
3、t 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 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 76769 2 ICS 77.160 Compliance with a British S
4、tandard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2012.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13944 Novembe
5、r 2012 ICS 77.160 Supersedes EN ISO 13944:2006English Version Lubricated metal-powder mixes - Determination of lubricant content - Soxhlet extraction method (ISO 13944:2012) Mlanges de poudres mtalliques lubrifies - Dtermination de la teneur en lubrifiant - Mthode dextraction au Soxhlet (ISO 13944:2
6、012) Metallpulver mit Gleitmittelzusatz - Bestimmung des Gleitmittelan-teils - Extraktionsverfahren nach Soxhlet (ISO 13944:2012) This European Standard was approved by CEN on 13 August 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
7、 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three
8、 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodi
9、es of 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, Romania, Slovakia, Slovenia, Sp
10、ain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN n
11、ational Members. Ref. No. EN ISO 13944:2012: EBS EN ISO 13944:2012 EN ISO 13944:2012 (E) 3 Foreword This document (EN ISO 13944:2012) has been prepared by Technical Committee ISO/TC 119 “Powder metallurgy“. This European Standard shall be given the status of a national standard, either by publicatio
12、n of an identical text or by endorsement, at the latest by May 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be
13、held responsible for identifying any or all such patent rights. This document supersedes EN ISO 13944:2006. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cr
14、oatia, 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
15、 the United Kingdom. Endorsement notice The text of ISO 13944:2012 has been approved by CEN as a EN ISO 13944:2012 without any modification. BS EN ISO 13944:2012 EN ISO 13944:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodie
16、s (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,
17、 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.International Standards are drafted in accordance with the rules given in the ISO/
18、IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the mem
19、ber bodies casting a vote.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.ISO 13944 was prepared by Technical Committee ISO/TC 119, Powder metallurgy,
20、 Subcommittee SC 2, Sampling and testing methods for powders (including powders for hardmetals).This second edition cancels and replaces the first edition (ISO 13944:1996), which has been technically revised. ISO 2012 All rights reserved iiiBS EN ISO 13944:2012 EN ISO 13944:2012 (E) BS EN ISO 13944:
21、2012Lubricated metal-powder mixes Determination of lubricant content Soxhlet extraction method1 ScopeThis International Standard specifies a method for the determination of the lubricant content of a powder mix. The method is also suitable for preparing samples for measuring the content of elements,
22、 e.g. graphite and oxygen, the determination of which is interfered with by the presence of a lubricant.A condition of the application of the method is that a suitable solvent for the lubricant concerned is known and available.2 PrincipleThe lubricant is extracted from a weighed test portion using a
23、 suitable solvent. The test portion is reweighed after the extraction, and the percentage mass loss, representing the extracted lubricant, is calculated.The extracted test portion can then be used to determine, by the normal methods, the content of other constituents, without any interference from t
24、he lubricant.3 Apparatus and materials3.1 Analytical balance, capable of weighing the sintered-glass filter crucible (see 3.2.3), together with the test portion, to the nearest 1 mg.3.2 Soxhlet apparatus, as shown in Figure 1, with ungreased joints, consisting of the following parts.3.2.1 Allihn (bu
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