EN ISO 5537:2023

SLOVENSKI STANDARD
01-oktober-2023
Nadomešča:
SIST EN ISO 5537:2004
Mleko v prahu in sušeni mlečni proizvodi - Določevanje vsebnosti vlage
(referenčna metoda) (ISO 5537:2023)
Dried milk and dried milk products - Determination of moisture content (Reference
method) (ISO 5537:2023)
Milchpulver - Bestimmung des Wassergehaltes (Referenzverfahren) (ISO 5537:2023)
Lait sec et produits à base de lait sec - Détermination du taux d’humidité (méthode de
référence) (ISO 5537:2023)
Ta slovenski standard je istoveten z: EN ISO 5537:2023
ICS:
67.100.10 Mleko in predelani mlečni Milk and processed milk
proizvodi products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5537
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 67.100.10 Supersedes EN ISO 5537:2004
English Version
Dried milk and dried milk products - Determination of
moisture content (Reference method) (ISO 5537:2023)
Lait sec et produits à base de lait sec - Détermination Milchpulver - Bestimmung des Wassergehaltes
du taux d'humidité (méthode de référence) (ISO (Referenzverfahren) (ISO 5537:2023)
5537:2023)
This European Standard was approved by CEN on 7 March 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5537:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5537:2023) has been prepared by Technical Committee ISO/TC 34 "Food
products" in collaboration with Technical Committee CEN/TC 302 “Milk and milk products - Methods of
sampling and analysis” the secretariat of which is held by NEN.
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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
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 5537:2004.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 5537:2023 has been approved by CEN as EN ISO 5537:2023 without any modification.

INTERNATIONAL ISO
STANDARD 5537
IDF 26
Second edition
2023-07
Dried milk and dried milk products —
Determination of moisture content
(reference method)
Lait sec et produits à base de lait sec — Détermination du taux
d’humidité (méthode de référence)
Reference numbers
ISO 5537:2023(E)
IDF 26:2023(E)
ISO 5537:2023(E)
IDF 26:2023(E)
© ISO and IDF 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office International Dairy Federation
CP 401 • Ch. de Blandonnet 8 Silver Building • Bd Auguste Reyers 70/B
CH-1214 Vernier, Geneva B-1030 Brussels
Phone: +41 22 749 01 11 Phone: +32 2 325 67 40
Fax: +32 2 325 67 41
Email: copyright@iso.org Email: info@fil-idf.org
Website: www.iso.org Website: www.fil-idf.org
Published in Switzerland
ii
ISO 5537:2023(E)
IDF 26:2023(E)
Contents Page
Forewords .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Sampling . 3
7 Preparation of test sample . 3
8 Procedure .3
8.1 Preparation of column . 3
8.2 Preparation of test portion . 3
8.3 Determination . 4
9 Calculation and expression of results . 4
9.1 Calculation . 4
9.2 Expression of test results. 4
10 Precision . 4
10.1 Interlaboratory test . . 4
10.2 Repeatability . 5
10.3 Reproducibility . . 5
11 Test report . 5
Annex A (informative) Drying apparatus. 6
Annex B (informative) Precision data . 7
Bibliography . 9
iii
ISO 5537:2023(E)
IDF 26:2023(E)
Forewords
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 34, Food products, Subcommittee SC 5,
Milk and milk products, and the International Dairy Federation (IDF), in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 302, Milk and milk products -
Methods of sampling and analysis, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement). It is being published jointly by ISO and IDF.
This second edition cancels and replaces the first edition (ISO 5537 | IDF 26:2004), which has been
technically revised to add precision data for additional matrices.
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 5537:2023(E)
IDF 26:2023(E)
IDF (the International Dairy Federation) is a non-profit private sector organization representing the
interests of various stakeholders in dairying at the global level. IDF members are organized in National
Committees, which are national associations composed of representatives of dairy-related national
interest groups including dairy farmers, dairy processing industry, dairy suppliers, academics and
governments/food control authorities.
ISO and IDF collaborate closely on all matters of standardization relating to methods of analysis
and sampling for milk and milk products. Since 2001, ISO and I
...