SIST EN ISO 9233-1:2018

Cheese, cheese rind and processed cheese - Determination of natamycin content - Part 1: Molecular absorption spectrometric method for cheese rind (ISO 9233-1:2018)

This document specifies a method for the determination in cheese rind of natamycin mass fraction of
above 0,5 mg/kg and surface-area-related natamycin mass of above 0,03 mg/dm2.
NOTE It is possible that the method is suitable for detecting migration of natamycin into the cheese.

Käse, Käserinde und Schmelzkäse - Bestimmung des Natamycingehalts - Teil 1: Molekularabsorptionsspektrometrisches Verfahren für Käserinde (ISO 9233-1:2018)

Dieses Dokument legt ein Verfahren für die Bestimmung des Natamycin Massenanteils oberhalb von 0,5 mg/kg und der oberflächenbezogenen Masse von Natamycin oberhalb von 0,03 mg/dm2 in Käserinde fest.
ANMERKUNG   Dieses Verfahren ist möglicherweise geeignet zum Nachweis einer Migration von Natamycin in das Käseinnere.

Fromage, croûte de fromage et fromages fondus - Détermination de la teneur en natamycine - Partie 1: Méthode par spectrométrie d'absorption moléculaire pour croûte de fromage (ISO 9233-1:2018)

ISO 9233-1| FIL 140-1:2018 spécifie une méthode de détermination de la teneur en natamycine présente dans la croûte de fromage supérieure à 0,5 mg/kg et de la masse, exprimée par rapport à la surface, de natamycine de la croûte de fromage supérieure à 0,03 mg/dm2.
NOTE       La méthode pourrait également convenir à la détection de la migration de la natamycine vers l'intérieur du fromage.

Sir, skorja sira in topljeni sir - Določevanje natamicina - 1. del: Molekularna absorpcijska spektrometrijska metoda za skorjo sira (ISO 9233-1:2018)

Ta dokument določa metodo za določevanje natamicina z masnim deležem nad 0,5 mg/kg v skorji sira in mase natamicina na površini skorje sira nad 0,03 mg/dm2.
OPOMBA: ta metoda je lahko primerna tudi za zaznavanje migracije natamicina v sir.

General Information

• Status: Published
• Public Enquiry End Date: 19-Jan-2018
• Publication Date: 12-Jun-2018
• ICS: 67.100.30 - Cheese
• ICS: 71.040.50 - Physicochemical methods of analysis
• Technical Committee: KŽP - Agricultural food products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-May-2018
• Due Date: 04-Aug-2018
• Completion Date: 13-Jun-2018
• Ref Project: EN ISO 9233-1:2018 - Cheese, cheese rind and processed cheese - Determination of natamycin content - Part 1: Molecular absorption spectrometric method for cheese rind (ISO 9233-1:2018)

Relations

• Replaces: SIST EN ISO 9233-1:2013 - Cheese, cheese rind and processed cheese - Determination of natamycin content - Part 1: Molecular absorption spectrometric method for cheese rind (ISO 9233-1:2007 including Amd 1:2012)
• Effective Date: 01-Jul-2018
• Replaces: SIST EN ISO 9233-1:2013 - Cheese, cheese rind and processed cheese - Determination of natamycin content - Part 1: Molecular absorption spectrometric method for cheese rind (ISO 9233-1:2007 including Amd 1:2012)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 9233-1:2018
01-julij-2018
1DGRPHãþD
SIST EN ISO 9233-1:2013
6LUVNRUMDVLUDLQWRSOMHQLVLU'RORþHYDQMHQDWDPLFLQDGHO0ROHNXODUQD
DEVRUSFLMVNDVSHNWURPHWULMVNDPHWRGD]DVNRUMRVLUD,62
Cheese, cheese rind and processed cheese - Determination of natamycin content - Part
1: Molecular absorption spectrometric method for cheese rind (ISO 9233-1:2018)
Käse, Käserinde und Schmelzkäse - Bestimmung des Natamycingehalts - Teil 1:
Molekularabsorptionsspektrometrisches Verfahren für Käserinde (ISO 9233-1:2018)
Fromage, croûte de fromage et fromages fondus - Détermination de la teneur en
natamycine - Partie 1: Méthode par spectrométrie d'absorption moléculaire pour croûte
de fromage (ISO 9233-1:2018)
Ta slovenski standard je istoveten z: EN ISO 9233-1:2018
ICS:
67.100.30 Sir Cheese
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
SIST EN ISO 9233-1:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 9233-1:2018

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SIST EN ISO 9233-1:2018


EN ISO 9233-1
EUROPEAN STANDARD

NORME EUROPÉENNE

May 2018
EUROPÄISCHE NORM
ICS 67.100.30 Supersedes EN ISO 9233-1:2013
English Version

Cheese, cheese rind and processed cheese - Determination
of natamycin content - Part 1: Molecular absorption
spectrometric method for cheese rind (ISO 9233-1:2018)
Fromage, croûte de fromage et fromages fondus - Käse, Käserinde und Schmelzkäse - Bestimmung des
Détermination de la teneur en natamycine - Partie 1: Natamycingehalts - Teil 1:
Méthode par spectrométrie d'absorption moléculaire Molekularabsorptionsspektrometrisches Verfahren für
pour croûte de fromage (ISO 9233-1:2018) Käserinde (ISO 9233-1:2018)
This European Standard was approved by CEN on 4 April 2018.

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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9233-1:2018 E
worldwide for CEN national Members.

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SIST EN ISO 9233-1:2018
EN ISO 9233-1:2018 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 9233-1:2018
EN ISO 9233-1:2018 (E)
European foreword
This document (EN ISO 9233-1:2018) 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 November 2018, and conflicting national standards
shall be withdrawn at the latest by November 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 9233-1:2013.
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 9233-1:2018 has been approved by CEN as EN ISO 9233-1:2018 without any
modification.

3

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SIST EN ISO 9233-1:2018

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SIST EN ISO 9233-1:2018
INTERNATIONAL ISO
STANDARD 9233-1
IDF
140-1
Second edition
2018-03
Cheese, cheese rind and processed
cheese — Determination of natamycin
content —
Part 1:
Molecular absorption spectrometric
method for cheese rind
Fromage, croûte de fromage et fromages fondus — Détermination de
la teneur en natamycine —
Partie 1: Méthode par spectrométrie d'absorption moléculaire pour
croûte de fromage
Reference numbers
ISO 9233-1:2018(E)
IDF 140-1:2018(E)
©
ISO and IDF 2018

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SIST EN ISO 9233-1:2018
ISO 9233-1:2018(E)
IDF 140-1:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO and IDF 2018
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 • B-1030 Brussels
CH-1214 Vernier, Geneva
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
Email: [e-mail] Email: [e-mail]
Website: www.iso.org Website: www.fil-idf.org
Published in Switzerland
ii © ISO and IDF 2018 – All rights reserved

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SIST EN ISO 9233-1:2018
ISO 9233-1:2018(E)
IDF 140-1:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 2
6 Apparatus . 2
7 Sampling . 3
8 Preparation of test sample . 3
8.1 Cheese rind . 3
8.2 Cheese interior . 3
9 Procedure. 4
9.1 Test portion . 4
9.1.1 Cheese rind . 4
9.1.2 Cheese interior . 4
9.2 Preparation of test solution . 4
9.2.1 Cheese rind . 4
9.2.2 Cheese interior . 4
9.3 Determination . 5
9.3.1 Determination and detection limits . 5
9.3.2 UV absorbance of natamycin standard working solution . 5
9.3.3 Test solution. 5
9.3.4 Low natamycin content . 5
10 Calculation and expression of results . 6
10.1 Calculation of natamycin mass fraction . 6
10.2 Calculation of absorbance . 6
10.3 Calculation of surface-area-related natamycin mass . 7
10.4 Correction of results . 7
10.5 Expression of results . 7
11 Precision . 7
11.1 Interlaboratory tests . 7
11.2 Repeatability . 7
11.3 Reproducibility . 8
12 Test report . 8
Annex A (informative) Examples . 9
Annex B (informative) Results of interlaboratory trial .13
Bibliography .14
© ISO and IDF 2018 – All rights reserved iii

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SIST EN ISO 9233-1:2018
ISO 9233-1:2018(E)
IDF 140-1:2018(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 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 the following
URL: 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). It is being published jointly by ISO
and IDF.
This second edition cancels and replaces the first edition (ISO 9233-1 | IDF 140-1:2007), of which it
constitutes a minor revision to incorporate the amendment ISO 9233-1:2007/Amd.1:2012.
A list of all parts in the ISO 9233 | IDF 140 series can be found on the ISO website.
iv © ISO and IDF 2018 – All rights reserved

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SIST EN ISO 9233-1:2018
ISO 9233-1:2018(E)
IDF 140-1:2018(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 IDF jointly publish their International
Standards using the logos and reference numbers of both organizations.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. IDF 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.
This document was prepared by the IDF Standing Committee on Analytical methods for additives and
contaminants and ISO Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk
products. It is being published jointly by ISO and IDF.
The work was carried out by the Joint ISO/IDF Action Team on Selected food additives and vitamins of the
Standing Committee on Analytical methods for additives and contaminants under the aegis of its project
leader, Mr. M. Carl (DE).
© ISO and IDF 2018 – All rights reserved v

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SIST EN ISO 9233-1:2018

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SIST EN ISO 9233-1:2018
ISO 9233-1:2018(E)
INTERNATIONAL STANDARD
IDF 140-1:2018(E)
Cheese, cheese rind and processed cheese —
Determination of natamycin content —
Part 1:
Molecular absorption spectrometric method for cheese rind
1 Scope
This document specifies a method for the determination in cheese rind of natamycin mass fraction of
2
above 0,5 mg/kg and surface-area-related natamycin mass of above 0,03 mg/dm .
NOTE It is possible that the method is suitable for detecting migration of natamycin into the cheese.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electro
...