SIST EN ISO 4497:2020
(Main)Metallic powders - Determination of particle size by dry sieving (ISO 4497:2020)
Metallic powders - Determination of particle size by dry sieving (ISO 4497:2020)
This document specifies a method of determining the particle size distribution of metallic powders by dry sieving into size fractions.
The method is applicable to dry, unlubricated metallic powders, but not applicable to powders in which the morphology differs markedly from being equiaxial, for example flake-type powders.
The method is not applicable to metallic powders having a particle size wholly or mostly under 45 µm.
Metallpulver - Bestimmung der Teilchengröße durch Trockensiebung (ISO 4497:2020)
Dieses Dokument legt das Verfahren zur Bestimmung der Teilchengrößenverteilung metallischer Pulver durch Trockensiebung in Größenfraktionen fest.
Das Verfahren ist anwendbar auf trockene, gleitmittelfreie Metallpulver, aber nicht auf Pulver, deren Partikelform stark von der Kugelgestalt abweicht, z. B. auf Pulver mit Partikeln in Flockenform.
Das Verfahren ist nicht anwendbar auf metallische Pulver mit einer Teilchengröße, die insgesamt oder überwiegend unter 45 µm liegt.
Poudres métalliques - Détermination de la granulométrie par tamisage à sec (ISO 4497:2020)
Le présent document spécifie une méthode de détermination de la distribution granulométrique des poudres métalliques par tamisage à sec en fractions granulométriques.
La méthode est applicable aux poudres métalliques sèches et non lubrifiées, mais non aux poudres dont la morphologie diffère notablement de l'équiaxialité, par exemple aux poudres en flocons.
La méthode n'est pas applicable aux poudres métalliques de granulométrie inférieure, en totalité ou en partie, à 45 µm.
Kovinski praški - Ugotavljanje velikosti delcev s suhim sejanjem (ISO 4497:2020)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2020
Nadomešča:
SIST EN 24497:2000
Kovinski praški - Ugotavljanje velikosti delcev s suhim sejanjem (ISO 4497:2020)
Metallic powders - Determination of particle size by dry sieving (ISO 4497:2020)
Metallpulver - Bestimmung der Teilchengröße durch Trockensiebung (ISO 4497:2020)
Poudres métalliques - Détermination de la granulométrie par tamisage à sec (ISO
4497:2020)
Ta slovenski standard je istoveten z: EN ISO 4497:2020
ICS:
77.160 Metalurgija prahov Powder metallurgy
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4497
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2020
EUROPÄISCHE NORM
ICS 77.160 Supersedes EN 24497:1993
English Version
Metallic powders - Determination of particle size by dry
sieving (ISO 4497:2020)
Poudres métalliques - Détermination de la Metallpulver - Bestimmung der Teilchengröße durch
granulométrie par tamisage à sec (ISO 4497:2020) Trockensiebung (ISO 4497:2020)
This European Standard was approved by CEN on 7 May 2020.
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 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 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 bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4497:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4497:2020) has been prepared by Technical Committee ISO/TC 119 "Powder
metallurgy" in collaboration with CCMC.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2020, and conflicting national standards
shall be withdrawn at the latest by November 2020.
Attention is drawn to the possibility that some of the elements of 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 24497:1993.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 4497:2020 has been approved by CEN as EN ISO 4497:2020 without any modification.
INTERNATIONAL ISO
STANDARD 4497
Second edition
2020-04
Metallic powders — Determination of
particle size by dry sieving
Poudres métalliques — Détermination de la granulométrie par
tamisage à sec
Reference number
ISO 4497:2020(E)
©
ISO 2020
ISO 4497:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2020 – All rights reserved
ISO 4497:2020(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Test equipment. 1
6 Preparation of test portion . 2
6.1 General . 2
6.2 Mass of test portion . 2
7 Procedure. 2
7.1 General . 2
7.2 Sieving time . 2
7.3 Measurement . 3
8 Expression of results . 3
9 Precision . 3
10 Test report . 6
Bibliography . 7
ISO 4497:2020(E)
Foreword
ISO (the International Organization for Standardization) 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 right to be represented on that committee. International
organizations, 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.
The procedures 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 rules 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 identified 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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 119, Powder metallurgy, Subcommittee
SC 2, Sampling and testing methods for powders (including powders for hardmetals), in collaboration
with the European Committee for Standardization (CEN) Technical Committee CEN/SS M11, Powder
metallurgy, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This second edition cancels and replaces the first edition (ISO 4497:1983), which has been technically
revised. The main changes compared to the previous edition is as follows:
— inclusion of a precision statement.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
INTERNATIONAL STANDARD ISO 4497:2020(E)
Metallic powders — Determination of particle size by
dry sieving
1 Scope
This document specifies a method of determining the particle size distribution of metallic powders by
dry sieving into size fractions.
The method is applicable to dry, unlubricated metallic powders, but not applicable to powders in which
the morphology differs markedly from being equiaxial, for example flake-type powders.
The method is not applicable to metallic powders having a particle size wholly or mostly under 45 µm.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes
of openings
ISO 2591-1, Test sieving — Part 1: Methods using test sieves of woven wire cloth and perforated metal plate
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Principle
The metallic powder are separated into particle size fractions by shaking through a set of wire cloth
test sieves. The test sieves shall be stacked in consecutive order of size of aperture openings.
The fractions retained on each sieve and the fraction passing the finest sieve are weighed.
5 Test equipment
5.1 Calibrated cloth sieves.
A calibrated series of non-magnetic wire cloth sieves, having different nominal aperture sizes shall be
used. Each sieve cloth shall be mounted in a non-magnetic metal frame having a nominal diameter of
200 mm and a nominal depth within the range 25 mm to 50 mm.
NOTE ISO 3310-1 specifies a nominal depth of 50 mm or 25 mm.
ISO 4497:2020(E)
The test sieve frames and spacers, if used, shall nest seamlessly with one another, and the set shall be
completed with a lid on top and a collecting pan below the bottom sieve.
The calibration of sieves shall be carried out according to ISO 3310-1.
The aperture size of the test siev
...
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