Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of bulk density of ceramic powders - Part 2: Untapped density (ISO 23145-2:2012)

This part of ISO 23145 specifies the test method to determine the untapped density of granulated or ungranulated ceramic powders by a constant-volume measuring method.

Hochleistungskeramik - Bestimmung der Dichte von keramischen Pulvern - Teil 2: Schüttdichte (ISO 23145-2:2012)

Dieser Teil von ISO 23145 legt ein Verfahren zur Bestimmung der Schüttdichte von granulierten oder nicht granulierten keramischen Pulvern mit einer Volumenkonstanzmethode fest.

Céramiques techniques - Détermination de la masse volumique des poudres céramiques - Partie 2: Masse volumique sans tassement (ISO 23145-2:2012)

L'ISO 23145-2:2012 spécifie la méthode d'essai permettant de déterminer la masse volumique sans tassement des poudres céramiques granulées ou non-granulées à l'aide d'une méthode de mesurage à volume constant.

Fina keramika (sodobna keramika, sodobna tehnična keramika) - Ugotavljanje prostorninske gostote keramičnih praškov - 2. del: Gostota brez potresanja (ISO 23145-2:2012)

Ta del standarda ISO 23145 določa metodo preskušanja za določanje gostote po stiskanju za granulirane ali negranulirane keramične praške z metodo merjenja konstantne prostornine.

General Information

Status
Published
Publication Date
19-Apr-2016
Withdrawal Date
30-Oct-2016
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Apr-2016
Due Date
22-Nov-2016
Completion Date
20-Apr-2016

Relations

Effective Date
27-Apr-2016

Overview - EN ISO 23145-2:2016 (ISO 23145-2:2012)

EN ISO 23145-2:2016 specifies a laboratory test method for determining the untapped (un-tapped) bulk density of ceramic powders (granulated or ungranulated) using a constant‑volume measuring method. It forms Part 2 of ISO 23145 (Part 1 covers tap density) and is intended for fine/advanced/technical ceramics where accurate powder bulk density data are needed for materials characterization and quality control.

Key topics & technical requirements

  • Scope: Untapped density of ceramic powders measured by allowing powder to fall freely into a fixed-volume container without vibration.
  • Principle: Measure mass of a known constant volume of powder after free-fall filling; density = mass / volume.
  • Apparatus essentials:
    • Funnels with orifice diameters 2.5 mm and 5.0 mm (stainless steel, non‑magnetic).
    • Cylindrical container of 100 cm3 volume and diameter:height ≈ 1.
    • Sieve per ISO 565 with 0.71 mm aperture.
    • Balance precision 0.1 g (or 0.01 g for very fluffy powders).
    • Straight edge for levelling and a vibration‑free stand.
  • Sampling & pretreatment: Test as‑received unless drying is required. If dried, heating at (110 ± 5) °C for ≥1 h is recommended and drying actions must be recorded.
  • Procedure highlights:
    • Pass powder through sieve, fill funnel, allow free flow into container, level with straight edge without compression or vibration, tap lightly to avoid spillage, weigh container + powder.
    • Perform three test portions and average results.
  • Calculation & reporting:
    • Untapped density p = (m1 − m0) / V (masses in g, V in cm3). Round to 0.001 g/cm3 (or 1 kg/m3) per ISO 80000‑1.
    • Test report must follow ISO/IEC 17025 requirements and include sample ID, environmental conditions, any pretreatment, results and any anomalies (e.g., orifice blockage, powder poking).

Applications - who uses this standard

  • Ceramic materials laboratories, R&D and quality control teams in advanced ceramics manufacturing.
  • Powder suppliers and formulators for specification, acceptance testing and batch control.
  • Process engineers and product developers using bulk density for powder handling, compaction, mixing, spray drying and sintering process design.
  • Third‑party testing laboratories seeking accredited, repeatable methods.

Related standards & references

  • ISO 23145‑1 (Tap density)
  • ISO 565 (Test sieves)
  • ISO 80000‑1 (Quantities and units)
  • ISO/IEC 17025 (Laboratory competence)
  • Historical/related methods: EN 725‑9, JIS and ASTM powder density test methods

Keywords: EN ISO 23145-2:2016, untapped density, bulk density of ceramic powders, fine ceramics, powder characterization, constant-volume method.

Frequently Asked Questions

EN ISO 23145-2:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of bulk density of ceramic powders - Part 2: Untapped density (ISO 23145-2:2012)". This standard covers: This part of ISO 23145 specifies the test method to determine the untapped density of granulated or ungranulated ceramic powders by a constant-volume measuring method.

This part of ISO 23145 specifies the test method to determine the untapped density of granulated or ungranulated ceramic powders by a constant-volume measuring method.

EN ISO 23145-2:2016 is classified under the following ICS (International Classification for Standards) categories: 81.060.30 - Advanced ceramics. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 23145-2:2016 has the following relationships with other standards: It is inter standard links to EN 725-9:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN ISO 23145-2:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


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Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of
bulk density of ceramic powders - Part 2: Untapped density (ISO 23145-2:2012)
Hochleistungskeramik - Bestimmung der Dichte von keramischen Pulvern - Teil 2:
Schüttdichte (ISO 23145-2:2012)
Céramiques techniques - Détermination de la masse volumique des poudres céramiques
- Partie 2: Masse volumique sans tassement (ISO 23145-2:2012)
Ta slovenski standard je istoveten z: EN ISO 23145-2:2016
ICS:
81.060.30 Sodobna keramika Advanced ceramics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 23145-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2016
EUROPÄISCHE NORM
ICS 81.060.30 Supersedes EN 725-9:2006
English Version
Fine ceramics (advanced ceramics, advanced technical
ceramics) - Determination of bulk density of ceramic
powders - Part 2: Untapped density (ISO 23145-2:2012)
Céramiques techniques - Détermination de la masse Hochleistungskeramik - Bestimmung der Dichte von
volumique des poudres céramiques - Partie 2: Masse keramischen Pulvern - Teil 2: Schüttdichte (ISO 23145-
volumique sans tassement (ISO 23145-2:2012) 2:2012)
This European Standard was approved by CEN on 25 March 2016.

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, 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
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23145-2:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 23145-2:2012 has been prepared by Technical Committee ISO/TC 206 “Fine ceramics”
of the International Organization for Standardization (ISO) and has been taken over as EN ISO 23145-
2:2016 by Technical Committee CEN/TC 184 “Advanced technical ceramics” the secretariat of which is
held by DIN.
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 October 2016, and conflicting national standards shall
be withdrawn at the latest by October 2016.
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 held responsible for identifying any or all such patent
rights.
This document supersedes EN 725-9:2006.
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, 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 the United Kingdom.
Endorsement notice
The text of ISO 23145-2:2012 has been approved by CEN as EN ISO 23145-2:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 23145-2
First edition
2012-06-01
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Determination of bulk density of
ceramic powders —
Part 2:
Untapped density
Céramiques techniques — Détermination de la masse volumique des
poudres céramiques —
Partie 2: Masse volumique sans tassement
Reference number
ISO 23145-2:2012(E)
©
ISO 2012
ISO 23145-2:2012(E)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2012 – All rights reserved

ISO 23145-2:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 1
5 Sampling . 4
6 Procedure . 5
7 Calculation . 5
8 Test report . 5
Bibliography . 7
ISO 23145-2:2012(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
...

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