EN ISO 8049:2016

SLOVENSKI STANDARD
01-september-2016
1DGRPHãþD
SIST EN 28049:2009
)HURQLNHOMY]UQLK9]RUþHQMH]DDQDOL]R,62
Ferronickel shot - Sampling for analysis (ISO 8049:2016)
Ferronickelschrot - Probenahme für Analyse (ISO 8049:2016)
Ferro-nickel en grenailles - Échantillonnage pour analyse (ISO 8049:2016)
Ta slovenski standard je istoveten z: EN ISO 8049:2016
ICS:
77.100 Železove zlitine Ferroalloys
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8049
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 77.100 Supersedes EN 28049:1992
English Version
Ferronickel shot - Sampling for analysis (ISO 8049:2016)
Ferro-nickel en grenailles - Échantillonnage pour Ferronickelschrot - Probenahme für Analyse (ISO
analyse (ISO 8049:2016) 8049:2016)
This European Standard was approved by CEN on 26 May 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 8049:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8049:2016) has been prepared by Technical Committee ISO/TC 155 "Nickel and
nickel alloys".
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 December 2016, and conflicting national standards
shall be withdrawn at the latest by December 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 28049:1992.
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 8049:2016 has been approved by CEN as EN ISO 8049:2016 without any modification.
INTERNATIONAL ISO
STANDARD 8049
Second edition
2016-06-01
Ferronickel shot — Sampling for
analysis
Ferro-nickel en grenailles — Échantillonnage pour analyse
Reference number
ISO 8049:2016(E)
©
ISO 2016
ISO 8049:2016(E)
© ISO 2016, 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 2016 – All rights reserved

ISO 8049:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Form and packaging of product . 1
4 Principle . 1
5 Taking of the primary sample and then of the intermediate sample .2
5.1 Blended lots . 2
5.1.1 Bulk sampling in the case of a suitable system for taking the primary sample . 2
5.1.2 Sampling of bulk material when no adequate primary sampling system
is available . 3
5.1.3 Sampling of a drum-packed lot . 3
5.1.4 Sampling of a container-packed lot . 3
5.2 Particular case of a lot made up of one single heat. 5
6 Treatment of the intermediate sample and taking of the secondary sample .5
6.1 General . 5
6.2 Blended lot . 5
6.3 Lot made up of a single heat . 5
7 Remelting of the secondary sample . 5
8 Use of small ingots (secondary increments) . 6
Annex A (informative) Justification of the number of primary and secondary increments .8
Annex B (informative) Methods for taking a sample of size N in a supply of M items .17
Annex C (informative) Technical conditions for drilling and milling .21
Bibliography .29
ISO 8049:2016(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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 155, Nickel and nickel alloys.
This second edition cancels and replaces the first edition (ISO 8049:1988). The following change has
been made: 5.1.4 has been added.
iv © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 8049:2016(E)
Ferronickel shot — Sampling for analysis
1 Scope
This International Standard defines a method of sampling for analysis of ferronickel lots in the form of
shot as specified in ISO 6501 in those cases where lots are constituted either heat by heat or by taking
from blended stock.
The purpose is to determine the contents of the various elements
— either from slugs by physical analysis methods (such as X-ray fluorescence or emission spectral
analysis), or
— from chips by dry methods (carbon, sulfur) or chemical analysis (other elements).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 513:2012, Classification and application of hard cutting materials for metal removal with defined
cutting edges — Designation of the main groups and groups of application
3 Form and packaging of product
Grain size: between 3 mm and 50 mm.
Lot tonnage: equal to or greater than 5 t.
In the case of lots taken from blended stock, the nickel content range k to (k + n) % of the blended heats
shall be chosen as follows:
— 15 ≤ k ≤ 59;
— 1 ≤ n ≤ 5;
— 16 ≤ k + n ≤ 60.
NOTE The case of non-blended lots (case n ≤ 1) is not dealt with in this International Standard.
The ferronickel shot is generally delivered in bulk form in units which may be trucks, containers, or
railroad cars, of which the contained masses normally range from 5 t to 30 t, although in the case of
railroad cars, loads may have masses up to 60 t.
This type of ferronickel can also be delivered drum-packed (the contained mass of which may be
250 kg).
4 Principle
In a single heat, intergrain homogeneity is practically ensured. It is therefore very easy to obtain a
representative “primary sample” from a small number of “primary increments”.
In the case of a blended lot composed of several heats, a greater number of primary increments, N ,
P
should be taken, but the whole still constitutes the primary sample.
ISO 8049:2016(E)
After blending and mass division of the primary sample, an “intermediate sample” is obtained having a
reasonable mass for laboratory treatment. The treatment of the intermediate sample gives a “secondary
sample”, which may be divided in N “secondary increments” not exceeding a mass of 1 kg individually.
s
Each secondary increment is then remelted under appropriate conditions so that no variation in
composition can be observed and that N homogeneous small ingots be obtained (within-small-ingot
s
homogeneity).
NOTE It is generally accepted that 1 kg is the maximum mass which can be accommodated in a laboratory
furnace for re-casting under the required conditions. According to the grain size distribution of shot, it is often
necessary for the secondary sample to exceed 1 kg in order to be representative. Hence, the necessity of melting
several small ingots. See the statistical jus
...