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

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.
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: 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 vorliegen.
Das Verfahren ist nicht für Harze geeignet, die gleichzeitig Hydroxylgruppen und Epoxidgruppen enthalten, weil letztere in das Ergebnis eingehen. Ebenfalls nicht geeignet ist das Verfahren für Cellulosenitrat und Phenolharze.
ANMERKUNG 1      Wenn im Falle von Bindemittellösungen nur die Hydroxylzahl des Bindemittels zu be¬stimmen ist, sollte beachtet werden, 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 - Méthode titrimétrique - 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
Public Enquiry End Date
09-Apr-2015
Publication Date
16-Aug-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Jul-2016
Due Date
12-Sep-2016
Completion Date
17-Aug-2016

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SLOVENSKI STANDARD
SIST EN ISO 4629-1:2016
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
SIST EN ISO 4629-1:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 4629-1:2016
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SIST EN ISO 4629-1:2016
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.
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SIST EN ISO 4629-1:2016
EN ISO 4629-1:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 4629-1:2016
EN ISO 4629-1:2016 (E)
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.
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SIST EN ISO 4629-1:2016
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SIST EN ISO 4629-1:2016
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
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SIST EN ISO 4629-1:2016
ISO 4629-1:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© 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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Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 4629-1:2016
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 2016 – All rights reserved iii
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SIST EN ISO 4629-1:2016
ISO 4629-1:2016(E)
Foreword

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