BS-EN-23954-1993 ISO-3954-1977.pdf
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1、BRITISH STANDARD BS EN 23954:1993 ISO 3954:1977 Powders for powder metallurgical purposes Sampling The European Standard EN 23954:1993 has the status of a British Standard UDC 621.762:669-492.2:620.113 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:16 GMT+00:00 2006, Uncontrolled Copy,
2、 (c) BSI BS EN 23954:1993 This British Standard, having been prepared under the direction of the Iron and Steel Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 June 1993 BSI 10-1999 The following BSI references relate to the work on th
3、is standard: Committee reference ISM/65 Special announcement in BSI News January 1993 ISBN 0 580 21941 0 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the foll
4、owing countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardi
5、zation IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qu
6、alidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, F
7、ri Nov 03 09:15:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 23954:1993 BSI 10-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 1Scope and field of application3 2References3 3Definitions3 4Number of increments3 5Sampling4 Annex ZA (normative) Norma
8、tive references to international publications with their relevant European publications9 Figure 1 Scheme of sampling4 Figure 2 Sampling thief6 Figure 3 Sampling thief6 Figure 4 Quartering device6 Figure 5 Sample splitter7 Figure 6 Rotary sample splitter8 Figure 7 Rotating cone sample splitter8 Natio
9、nal annex NA (informative) Committees responsibleInside back cover National annex NB (informative) Cross-referenceInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 23954:1993 ii BSI 10-1999 National foreword This Britis
10、h Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is the English language version of EN 23954:1993 Powders for powder metallurgical purposes Sampling, published by the European Committee for Standardization (CEN). It is identical with ISO 3954:1977
11、, published by the International Organization for Standardization (ISO). This British Standard supersedes BS 5600-2.1:1979 which is withdrawn and from which it differs by the addition of Annex ZA. A British Standard does not purport to include all the necessary provisions of a contract. Users of Bri
12、tish Standards are responsible for their correct application. Compliance with a British 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, the EN title page, pages 2 to 10, an inside back
13、cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EU
14、ROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 23954 April 1993 UDC 621.762:669-492.2:620.113 Descriptors: Powder metallurgy, metallic powder, sampling, tests, samplers English version Powders for powder metallurgical purposes Sampling (ISO 3954:1977) Poudres pour emploi en mtallurgie des poudre
15、s Echantillonnage (ISO 3954:1977) Pulver fr die Pulvermetallurgie Probenahme (ISO 3954:1977) 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 conditions for giving this European Standard the status
16、 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 three official versions (English, French, German). A ver
17、sion 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 Austria, Belgium, Denmark, Finland, France, Germany, Gr
18、eece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright re
19、served to CEN members Ref. No. EN 23954:1993 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 23954:1993 2 BSI 10-1999 Foreword In 1992, ISO 3954:1977 Powders for powder metallurgical purposes Sampling was submitted to the CEN Primary Qu
20、estionnaire procedure. Following the positive result of the CEN/CS Proposal ISO 3954:1977 was submitted to the 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 endorsemen
21、t, at the latest by October 1993, and conflicting national standards shall be withdrawn at the latest by October 1993. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece
22、, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. NOTEThe European references to international publications are given in Annex ZA (normative). Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:16 GMT+00:00 2006, Uncontrolled
23、Copy, (c) BSI EN 23954:1993 BSI 10-19993 1 Scope and field of application This International Standard specifies procedures for the sampling of powders for powder metallurgical purposes. It also covers the splitting of the sample into the quantity required for testing. 2 References ISO 78, Guide on t
24、he form for standards for chemical products and for methods of chemical analysis. ISO 3081, Iron ores Increment sampling Manual method. 3 Definitions The following definitions are in accordance with ISO 3081 and ISO 78. 3.1 lot a quantity of powder processed or produced under conditions which are pr
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