EN 23923-2:1993
(Main)Metallic powders - Determination of apparent density - Part 2: Scott volumeter method (ISO 3923-2:1981)
Metallic powders - Determination of apparent density - Part 2: Scott volumeter method (ISO 3923-2:1981)
IS applicable to powders that will not flow freely through a 5 mm orifice. The oscillating funnel method (part 3) gives better precision, but it cannot be used in cases where the powder may change its properties due to the vibration action applied to the powder during testing. Gives principle, symbols and designations, apparatus, sampling, procedure, expression of results and test report.
Metallpulver - Ermittlung der Fülldichte - Teil 2: Scott-Volumeter-Verfahren (ISO 3923-2:1981)
Poudres métalliques - Détermination de la masse volumique apparente - Partie 2: Méthode du volumètre de Scott (ISO 3923-2:1981)
La présente partie de l'ISO 3923 spécifie la méthode du volumètre de Scott pour la détermination de la masse volumique apparente des poudres métalliques. Elle est applicable aux poudres ne s'écoulant pas librement à travers un orifice de 5 mm (voir ISO 3923/1). La partie 3 de la présente Norme internationale spécifie la méthode de l'entonnoir oscillant pour la détermination de la masse volumique apparente de telles poudres. Cette méthode est préférentielle, car elle donne une meilleure précision, mais elle ne doit pas être utilisée dans les cas où la vibration exercée sur la poudre peut en modifier les propriétés durant l'essai.
Metallic powders - Determination of apparent density - Part 2: Scott volumeter method (ISO 3923-2:1981)
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Metallic powders - Determination of apparent density - Part 2: Scott volumeter method (ISO 3923-2:1981)Metallpulver - Ermittlung der Fülldichte - Teil 2: Scott-Volumeter-Verfahren (ISO 3923-2:1981)Poudres métalliques - Détermination de la masse volumique apparente - Partie 2: Méthode du volumetre de Scott (ISO 3923-2:1981)Metallic powders - Determination of apparent density - Part 2: Scott volumeter method (ISO 3923-2:1981)77.160Metalurgija prahovPowder metallurgyICS:Ta slovenski standard je istoveten z:EN 23923-2:1993SIST EN 23923-2:2000en01-december-2000SIST EN 23923-2:2000SLOVENSKI
STANDARD
SIST EN 23923-2:2000
SIST EN 23923-2:2000
SIST EN 23923-2:2000
SIST EN 23923-2:2000
SIST EN 23923-2:2000
International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWlE)YHAPO~HAR OPI-AHM3AUklR fl0 CTAH~APTM3AlJ’lM~ORGANISATlON INTERNATIONALE DE RORMALISATION Metallic powders - Determination of apparent density - Part 2 : Scott volumeter method Poudres m&a/liques - Dbtermination de Ia masse volumique apparente - Partie 2 : Mthode du volumktre de Scott First edition - 1981-09-01 W - UDC 621.762 : 669-492.2 : 531.755 Ref. No. l§O 3923/2-1981 (EI Descriptors : pulverulent products, metallic powder, tests, determination, density (massholume), funnels, sampling, volumetric analysis. 0 cn Price based on 4 pages SIST EN 23923-2:2000
Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards institutes (ISO member bedies). The work of developing Inter- national Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been set up 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO 3923/2 was developed by Technical Committee ISO/TC 119, Powder metahugy, and was circulated to the member bodies in December 1979. lt has been approved by the member bodies of the following countries : Austria Germany, F. R. Bulgaria India Canada Italy China Japan Czechoslovakia Korea, Rep. of Egypt, Arab Rep. of Norway France Portugal Romania South Africa, Rep. of Spain Sweden United Kingdom USA USSR No member body expressed disapproval of the document. International Organkation for Standardkation, 1981 Printed in Switzerland SIST EN 23923-2:2000
INTERNATIONAL STANDARD ISO 3923/2-1981 (E) Metallic powders - Determination of apparent density - Part 2 : Scott volumeter method 1 Scope and field of application This part of ISO 3923 specifies the Scott volumeter method for the determination of the apparent density of metallic powders. It is applicable to powders that will not flow freely through a 5 mm orifice (see ISO 3923/1). Part 3 of this International Standard specifies the oscillating funnel method for the determination of apparent density of such powders, and this is preferred since it gives better preci- sion, but it cannot be used in cases where the powder may Change its properties due to the Vibration action applied to the powder during testing. 2 References I S 0 392311, Metallic po wders - Determination of apparent density - Part I : Funnel method. ISO 392313, Metallic powders - Determination of apparent density - Part 3 : Oscia thg funnel method. 3 Principle Measurement of the mass of a certain quantity of powder which in a loose condition exactly fills a cup of known volume. The loose condition is obtained, when filling the CUP, by cascading the powder over a series of inclined plates in a Scott volumeter (see figures 1 and 2). The ratio between the mass and the volume represents the ap- parent density. 4 Symbols and designations Ebol 1 Designation @a Qas m V Apparent density of metallic powders (general term) Apparent density obtained by the Scott volumeter method Mass of the powder Volume of the cup Unit g/cmC g/cm3 Cl 03 5 Apparatus 5.1 Scott volumeter, comprising : 5.1.1 Funnel, having a large and a small conical section separated by a cylindrical section and incorporating a brass sieve of aperture size IJ8 mm. 5.1.2 Baffle box, having a Square section, and containing four glass baffles which may be located and retained by grooves in opposite sides of the box and may thus be removed for ease of cleaning. The baffles are arranged so that the powder falls on to each of them in turn, thereby breaking the fall and reducing the velocity of the stream of powder. lt is im- portant that none of the powder tan pass between the upper edge of the glass baffles and the sides of the baffle box. lt is also important that the lower edges of the glass baffles are e
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