SIST EN ISO 4496:2017
(Main)Metallic powders - Determination of acid-insoluble content in iron, copper, tin and bronze powders (ISO 4496:2017)
Metallic powders - Determination of acid-insoluble content in iron, copper, tin and bronze powders (ISO 4496:2017)
ISO 4496:2017 specifies methods for determining, in iron, copper, tin and bronze powders, the approximate content of non-metallic materials which are insoluble in the ordinary mineral acids.
The insoluble matter referred to is generally considered to be acid-insoluble silica and silicates, carbides, alumina, clays or other refractory oxides which are either present in the raw material from which the powders are manufactured or introduced during the manufacturing process.
Metallpulver - Bestimmung der säureunlöslichen Bestandteile in Eisen-, Kupfer-, Zinn- und Bronzepulvern (ISO 4496:2017)
Dieses Dokument legt Verfahren zur Bestimmung des genäherten Gehaltes an nicht-metallischen Bestandteilen in Eisen-, Kupfer-, Zinn- und Bronzepulvern fest, die in den üblichen Mineralsäuren nicht löslich sind.
Zu unlöslichen Bestandteilen, die hier behandelt werden, rechnet man allgemein säureunlösliche Kieselerde und Silikate, Karbide, Tonerde, Ton und andere stabile Oxide, die entweder im Ausgangsstoff, aus dem die Pulver hergestellt werden, bereits vorhanden sind oder während des Herstellungsprozesses eingebracht werden.
Poudres métalliques - Détermination de la teneur en insolubles dans les acides pour les poudres de fer, de cuivre, d'étain et de bronze (ISO 4496:2017)
ISO 4496:2017 spécifie des méthodes pour déterminer, dans les poudres de fer, de cuivre, d'étain et de bronze, la teneur approximative en éléments non métalliques qui sont insolubles dans les acides minéraux courants.
Par éléments insolubles, on entend généralement des composés tels que la silice et les silicates, les carbures, l'alumine, les argiles ou autres oxydes réfractaires qui peuvent être soit présents dans le matériau avec lequel on fabrique les poudres, soit introduits en cours de fabrication.
Kovinski prah - Določevanje netopne kisline železa, bakra, kositra in bronovega prahu (ISO 4496:2017)
Ta dokument določa metode za določevanje netopne kisline železa, bakra, kositra in bronovega prahu,
približno vsebnost nekovinskih materialov, ki so netopni v navadnih mineralnih kislinah. Navedena netopna snov je običajno v kislini netopen silicijev dioksid in silikati, karbidi, glinice, gline ali drugi ognjevzdržni oksidi, ki so bodisi prisotni v surovini, iz katere se prah proizvaja, bodisi se uvedejo med proizvodnim postopkom.
General Information
- Status
- Published
- Public Enquiry End Date
- 17-Apr-2017
- Publication Date
- 20-Aug-2017
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 17-Aug-2017
- Due Date
- 22-Oct-2017
- Completion Date
- 21-Aug-2017
Relations
- Effective Date
- 16-Aug-2017
- Effective Date
- 01-Jul-2015
Overview
EN ISO 4496:2017 (ISO 4496:2017) defines laboratory methods to determine the acid‑insoluble content in metallic powders - specifically iron, copper, tin and bronze powders. The standard is intended for lubricant‑free powder metallurgy materials and quantifies non‑metallic, acid‑resistant impurities (for example silica, silicates, carbides, alumina, clays and other refractory oxides) either originating from raw materials or introduced during manufacture.
Key topics and technical requirements
- Field of application: lubricant‑free iron, copper, tin, bronze and copper‑tin (bronze) powders.
- Sampling and test portions: analysis on two test portions; typical test portion mass ≈ 5 g.
- Equipment and accuracy: laboratory balance with accuracy ±0.0001 g, glass filtering funnel, ashless filter paper (residual ash < 0.01 %), fused silica/porcelain crucibles and a furnace capable of 900 °C–1 000 °C.
- Reagents: use analytical‑grade reagents and distilled water. Typical reagents include hydrochloric and nitric acids, hydrogen peroxide, sodium diethyldithiocarbamate, sodium sulfide, ammonium acetate and others specified for detecting or removing soluble metal salts.
- Procedure highlights:
- Dissolution of the metal powder in mineral acids with controlled heating and washing steps.
- Filtration of insoluble residue, drying/ashing of the filter and residue in a pre‑weighed crucible.
- Final drying/ashing in furnace to constant mass, then weighing to compute acid‑insoluble fraction.
- For iron powders, an optional nitric acid step can be used to exclude carbides from residue.
- Result expression: acid‑insoluble content is reported as percentage by mass (residue mass related to original test portion). The standard specifies how to calculate results and basic precision/replicate requirements.
Applications and users
EN ISO 4496:2017 is used by:
- Quality control and testing laboratories in powder metallurgy and metal‑powder production.
- Suppliers and manufacturers of metal powders for sintering, pressing and additive manufacturing feedstock who need to monitor non‑metallic contamination.
- Metallurgists and process engineers tracking raw material purity, contamination sources, or process cleanliness.
- Research and development teams studying powder chemistry, filtration, or pre‑treatment processes.
Practical benefits include standardized, comparable data for supplier qualification, incoming inspection, process troubleshooting and specification compliance.
Related standards
- Adopted by CEN as EN ISO 4496:2017 (supersedes EN ISO 24496:1993).
- Developed by ISO/TC 119 (Powder metallurgy).
(For full normative text and procedure details, consult the official ISO/CEN publication.)
Frequently Asked Questions
SIST EN ISO 4496:2017 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Metallic powders - Determination of acid-insoluble content in iron, copper, tin and bronze powders (ISO 4496:2017)". This standard covers: ISO 4496:2017 specifies methods for determining, in iron, copper, tin and bronze powders, the approximate content of non-metallic materials which are insoluble in the ordinary mineral acids. The insoluble matter referred to is generally considered to be acid-insoluble silica and silicates, carbides, alumina, clays or other refractory oxides which are either present in the raw material from which the powders are manufactured or introduced during the manufacturing process.
ISO 4496:2017 specifies methods for determining, in iron, copper, tin and bronze powders, the approximate content of non-metallic materials which are insoluble in the ordinary mineral acids. The insoluble matter referred to is generally considered to be acid-insoluble silica and silicates, carbides, alumina, clays or other refractory oxides which are either present in the raw material from which the powders are manufactured or introduced during the manufacturing process.
SIST EN ISO 4496:2017 is classified under the following ICS (International Classification for Standards) categories: 77.160 - Powder metallurgy. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 4496:2017 has the following relationships with other standards: It is inter standard links to SIST EN 24496:2000, SIST EN 24496:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN ISO 4496:2017 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2017
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SIST EN 24496:2000
.RYLQVNLSUDK'RORþHYDQMHQHWRSQHNLVOLQHåHOH]DEDNUDNRVLWUDLQEURQRYHJD
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Metallic powders - Determination of acid-insoluble content in iron, copper, tin and bronze
powders (ISO 4496:2017)
Metallpulver - Bestimmung der säureunlöslichen Bestandteile in Eisen-, Kupfer-, Zinn-
und Bronzepulvern (ISO 4496:2017)
Poudres métalliques - Détermination de la teneur en insolubles dans les acides pour les
poudres de fer, de cuivre, d'étain et de bronze (ISO 4496:2017)
Ta slovenski standard je istoveten z: EN ISO 4496:2017
ICS:
77.160 Metalurgija prahov Powder metallurgy
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4496
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2017
EUROPÄISCHE NORM
ICS 77.160 Supersedes EN 24496:1993
English Version
Metallic powders - Determination of acid-insoluble content
in iron, copper, tin and bronze powders (ISO 4496:2017)
Poudres métalliques - Détermination de la teneur en Metallpulver - Bestimmung der säureunlöslichen
insolubles dans les acides pour les poudres de fer, de Bestandteile in Eisen-, Kupfer-, Zinn- und
cuivre, d'étain et de bronze (ISO 4496:2017) Bronzepulvern (ISO 4496:2017)
This European Standard was approved by CEN on 7 August 2017.
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, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4496:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4496:2017) 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 publication of an
identical text or by endorsement, at the latest by February 2018 and conflicting national standards shall
be withdrawn at the latest by February 2018.
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 ISO 24496:1993.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 4496:2017 has been approved by CEN as EN ISO 4496:2017 without any modification.
INTERNATIONAL ISO
STANDARD 4496
Second edition
2017-07
Metallic powders — Determination of
acid-insoluble content in iron, copper,
tin and bronze powders
Poudres métalliques — Détermination de la teneur en insolubles dans
les acides pour les poudres de fer, de cuivre, d’étain et de bronze
Reference number
ISO 4496:2017(E)
©
ISO 2017
ISO 4496:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
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ii © ISO 2017 – All rights reserved
ISO 4496:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Field of application . 1
5 Reagents . 1
6 Equipment . 2
7 Sampling . 2
7.1 Number of test portions . 2
7.2 Mass of test portion . 2
8 Procedure. 3
8.1 Iron powder . 3
8.2 Copper, tin and bronze powders . 3
9 Expression of results . 4
9.1 Calculation of acid-insoluble content . 4
9.2 Precision . 4
9.3 Permissible difference . 4
9.4 Mean value . 4
10 Test report . 4
Bibliography . 6
ISO 4496:2017(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 technic
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