EN ISO 4629-1:2016

Binders for paints and varnishes - Determination of hydroxyl value - Part 1: Titrimetric method without using a catalyst (ISO 4629-1:2016)

ISO 4629-1:2016 specifies a titrimetric method for determining the free hydroxyl groups in binders and binder solutions for paints and varnishes. The hydroxyl groups may be present as polyhydric alcohols, partial esters, polyester end groups or hydroxylated fatty acids.
This method is not applicable to resins containing both hydroxyl groups and epoxy groups, because the latter will also be included in the result. Also the method is not applicable to cellulose nitrate or to phenolic resins.
NOTE 1       If, in the case of binder solutions, the hydroxyl value of the binder only is to be determined, the possibility that other constituents of the binder solution may contain hydroxyl groups has to be taken into account.
NOTE 2       A method for the determination of the hydroxyl value of epoxy resins is specified in ISO 7142[1].

Bindemittel für Beschichtungsstoffe - Bestimmung der Hydroxylzahl - Teil 1: Titrimetrisches Verfahren ohne Katalysator (ISO 4629-1:2016)

Dieser Teil von ISO 4629 legt ein titrimetrisches Verfahren zum Bestimmen von freien Hydroxylgruppen in Bindemitteln und Bindemittellösungen für Beschichtungsstoffe fest. Die Hydroxylgruppen können als mehr¬¬wertige Alkohole, partielle Ester, endständige Polyestergruppen oder hydroxylierte Fettsäuren vor¬liegen.
Das Verfahren ist nicht für Harze geeignet, die gleichzeitig Hydroxylgruppen und Epoxidgruppen ent-halten, weil letztere in das Ergebnis eingehen. Ebenfalls nicht geeignet ist das Verfahren für Cellulose-nitrat und Phenolharze.
ANMERKUNG 1   Wenn im Falle von Bindemittellösungen nur die Hydroxylzahl des Bindemittels zu be¬stimmen ist, ist zu be¬achten, dass auch andere Bestandteile der Bindemittellösung Hydroxylgruppen enthalten können.
ANMERKUNG 2   Ein Verfahren zum Bestimmen der Hydroxylzahl von Epoxidharzen ist in ISO 7142 [1] festgelegt.

Liants pour peintures et vernis - Détermination de l'indice d'hydroxyle - Partie 1: Méthode titrimétrique sans catalyseur (ISO 4629-1:2016)

ISO 4629-1:2016 prescrit une méthode titrimétrique pour le dosage des groupes hydroxyle libres dans les liants et solutions de liant pour peintures et vernis. Les groupes hydroxyle peuvent être présents sous forme d'alcools polyvalents, d'esters partiels, de groupes terminaux polyesters ou d'acides gras hydroxylés.
Cette méthode n'est pas applicable aux résines comportant à la fois des groupes hydroxyles et des groupes époxydes, car ces derniers peuvent également être compris dans le résultat. La méthode n'est pas non plus applicable au nitrate de cellulose et aux résines phénoliques.
NOTE 1       Si, dans le cas de solutions de liant, seul l'indice d'hydroxyle du liant doit être déterminé, il est nécessaire de tenir compte de la possibilité que d'autres constituants de la solution de liant puissent contenir des groupes hydroxyle.
NOTE 2       Une méthode pour la détermination de l'indice d'hydroxyle des résines époxydiques est décrite dans l'ISO 7142[1].

Veziva za barve in lake - Ugotavljanje bazičnosti - Titrimetrijska metoda - 1. del: Titrimetrijska metoda brez uporabe katalizatorja (ISO 4629-1:2016)

Ta del standarda ISO 4629 določa titrimetrično metodo za določanje prostih hidroksilnih skupin v vezivih
in vezivnih rešitvah za barve in lake. Hidroksilne skupine so lahko prisotne kot polihidrični alkoholi, delni estri, končne poliestrske skupine ali hidroksilirane maščobne kisline.
Metoda se ne uporablja za smole, ki vsebujejo tako hidroksilne kot epoksi skupine, saj bodo slednje tudi vključene v rezultat. Metoda se ne uporablja niti za celulozni nitrat ali fenolne smole.
OPOMBA 1: če je v primeru vezivnih rešitev treba določiti samo hidroksilno vrednost veziva, je treba upoštevati, da lahko druge sestavine vezivne rešitve vsebujejo hidroksilne skupine.
OPOMBA 2: metoda za določanje hidroksilne vrednosti epoksi smol je opredeljena v standardu ISO 7142[1].

General Information

• Status: Published
• Publication Date: 28-Jun-2016
• Withdrawal Date: 30-Dec-2016
• ICS: 87.060.20 - Binders
• Technical Committee: CEN/TC 139 - Paints and varnishes
• Drafting Committee: CEN/TC 139 - Paints and varnishes
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 29-Jun-2016
• Completion Date: 29-Jun-2016
• Ref Project: SIST EN ISO 4629-1:2016 - Binders for paints and varnishes - Determination of hydroxyl value - Titrimetric method - Part 1: Titrimetric method without using a catalyst (ISO 4629-1:2016)

Relations

• Replaces: EN ISO 4629:1998 - Binders for paints and varnishes - Determination of hydroxyl value - Titrimetric method (ISO 4629:1996)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2016
1DGRPHãþD
SIST EN ISO 4629:1998
9H]LYD]DEDUYHLQODNH8JRWDYOMDQMHED]LþQRVWL7LWULPHWULMVNDPHWRGDGHO
7LWULPHWULMVNDPHWRGDEUH]XSRUDEHNDWDOL]DWRUMD,62
Binders for paints and varnishes - Determination of hydroxyl value - Titrimetric method -
Part 1: Titrimetric method without using a catalyst (ISO 4629-1:2016)
Bindemittel für Beschichtungsstoffe - Bestimmung der Hydroxylzahl - Teil 1: Verfahren
ohne Katalysator (ISO 4629-1:2016)
Liants pour peintures et vernis - Détermination de l'indice d'hydroxyle - Méthode
titrimétrique - Partie 1: Méthode titrimétrique sans catalyseur (ISO 4629-1:2016)
Ta slovenski standard je istoveten z: EN ISO 4629-1:2016
ICS:
87.060.20 Veziva Binders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4629-1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 87.060.20 Supersedes EN ISO 4629:1998
English Version
Binders for paints and varnishes - Determination of
hydroxyl value - Part 1: Titrimetric method without using
a catalyst (ISO 4629-1:2016)
Liants pour peintures et vernis - Détermination de Bindemittel für Beschichtungsstoffe - Bestimmung der
l'indice d'hydroxyle - Partie 1: Méthode titrimétrique Hydroxylzahl - Teil 1: Titrimetrisches Verfahren ohne
sans catalyseur (ISO 4629-1:2016) Katalysator (ISO 4629-1:2016)
This European Standard was approved by CEN on 19 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 4629-1:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 4629-1:2016) has been prepared by Technical Committee ISO/TC 35 “Paints
and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” 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 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 ISO 4629:1998.
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 4629-1:2016 has been approved by CEN as EN ISO 4629-1:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 4629-1
First edition
2016-06-01
Binders for paints and varnishes —
Determination of hydroxyl value —
Part 1:
Titrimetric method without using a
catalyst
Liants pour peintures et vernis — Détermination de l’indice
d’hydroxyle —
Partie 1: Méthode titrimétrique sans catalyseur
Reference number
ISO 4629-1:2016(E)
©
ISO 2016
ISO 4629-1:2016(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
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
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ii © ISO 2016 – All rights reserved

ISO 4629-1:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Reagents . 2
6 Apparatus . 3
7 Sampling . 3
8 Procedure. 3
8.1 Number of determinations . 3
8.2 Test portion . 3
8.3 Determination . 4
8.4 Blank test . 5
8.5 Determination of acid value . 5
9 Expression of results . 5
10 Precision . 5
11 Test report . 6
Bibliography . 7
ISO 4629-1:2016(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 35, Paints and varnishes, Subcommittee SC 10,
Test methods for binders for paints and varnishes.
This first edition of ISO 4629-1 cancels and replaces ISO 4629:1996, which has been technically revised
with the following changes:
a) the standard has been numbered as ISO 4629-1;
b) the standard has been editorially revised and the normative references have been updated;
c) the concentration of the phenolphthalein-indicator solution has been changed.
ISO 4629 consists of the following parts, under the general title Binders for paints and varnishes —
Determination of hydroxyl value:
— Part 1: Titrimetric method without using a catalyst
— Part 2: Titrimetric method using a catalyst
iv © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 4629-1:2016(E)
Binders for paints and varnishes — Determination of
hydroxyl value —
Part 1:
Titrimetric method without using a catalyst
1 Scope
This part of ISO 4629 specifies a titrimetric method for determining the free hydroxyl groups in binders
and binder solutions for paints and varnishes. The hydroxyl groups may be present as polyhydric
alcohols, partial esters, polyester end groups or hydroxylated fatty acids.
This method is not applicable to resins containing both hydroxyl groups and epoxy groups, because
the latter will also be included in the result. Also the method is not applicable to cellulose nitrate or to
phenolic resins.
NOTE 1 If, in the case of binder solutions, the hydroxyl value of the binder only is to be determined, the
possibility that other constituents of the binder solution may contain hydroxyl groups has to be taken into
account.
[1]
NOTE 2 A method for the determination of the hydroxyl value of epoxy resins is specified in ISO 7142 .
2 Normative references
The following referenced 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 385, Laboratory glassware — Burettes
ISO 648, Laboratory glassware — Single-volume pipettes
ISO 2114:2000, Plastics (polyester resins) and paints and varnishes (binders) — Determination of partial
acid value and total acid value
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
h
...