SIST EN ISO 787-4:2018

SLOVENSKI STANDARD
01-januar-2018
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General methods of test for pigments and extenders - Part 4: Determination of acidity or
alkalinity of the aqueous extract (ISO 787-4:1981)
Allgemeine Prüfverfahren für Pigmente und Füllstoffe - Teil 4: Bestimmung der Acidität
oder Alkalitat des wäßrigen Extraktes (ISO 787-4:1981)
Méthodes générales d'essai des pigments et matières de charge - Partie 4:
Détermination de l'acidité ou de l'alcalinité de l'extrait aqueux (ISO 787-4:1981)
Ta slovenski standard je istoveten z: EN ISO 787-4:2017
ICS:
87.060.10 Pigmenti in polnila Pigments and extenders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 787-4
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2017
EUROPÄISCHE NORM
ICS 87.060.10
English Version
General methods of test for pigments and extenders - Part
4: Determination of acidity or alkalinity of the aqueous
extract (ISO 787-4:1981)
Méthodes générales d'essai des pigments et matières Allgemeine Prüfverfahren für Pigmente und Füllstoffe -
de charge - Partie 4: Détermination de l'acidité ou de Teil 4: Bestimmung der Acidität oder Alkalitat des
l'alcalinité de l'extrait aqueux (ISO 787-4:1981) wässrigen Extraktes (ISO 787-4:1981)
This European Standard was approved by CEN on 21 September 2017.

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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 787-4:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 787-4:1981 has been prepared by Technical Committee ISO/TC 256 “Pigments, dyestuffs
and extenders” of the International Organization for Standardization (ISO) and has been taken over as
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 April 2018, and conflicting national standards shall be
withdrawn at the latest by April 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.
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 787-4:1981 has been approved by CEN as EN ISO 787-4:2017 without any modification.

International Standard
INTkRNATIONAL ORGANIZATION FOR STANDARDIZATION.ME))(L1YHAPO~HAF OPTAHM3A~MR l-IO CTAH~APTkl3AL&lbl~RGANISATION INTERNATIONALE DE hORMALISATION
General methods of test for Pigments and extenders -
Part 4 : Determination of acidity or alkalinity of the
aqueous extract
Partie 4 : Determination de l ’aciditk ou de l ’alcalinith de
Mthodes ghkales d ’essai des Pigments et matikres de Charge -
l ’ex trait aqueux
First edition - 1981-09-15
UDC 667.622 : 543.241 Ref. No. ISO787/4-1981 (E)
determination, acidity, alkalinity, extraction analysis.
Descriptors : paints, Pigments, tests, Chemical analysis,
Price based on 2 pages
Foreword
ISO (the International Ot-ganization for Standardization) is a worldwide federation of
national Standards institutes (ISO member bodies). The work of developing Inter-
national Standards is carried out through ISO technical committees. Every member
body interested in a subject for which a technical committee has been set up 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council.
International Standard ISO 787/4 was developed by Technical Committee ISO/TC 35,
Paints and varnishes, and was circulated to the member bodies in December 1979.
lt has been approved by the member bodies of the following countries :
Australia India Poland
Austria Ireland Romania
Brazil Israel South Africa, Rep. of
Canada Italy Spain
China Sweden
Kenya
Egypt, Arab Rep. of Korea, Rep. of Switzerland
France Netherlands United Kingdom
Germany, F. R. Norway USSR
No member body expressed disapproval of the document.
This International Standard cancels and repla ces ISO R ecommendation R 78714-1968,
of which it consti tutes a technical revision.
0 International Organkation for Standardkation, 1981
Printed in Switzerland
ii
The purpose of this International Standard is to establish a series of general test
methods for Pigments and extenders which are suitable for all or many of the individual
Pigments and extenders for which specifications might be required. In such cases, a
Cross-reference to the general method should be included in the International Standard
relating to that Pigment or extender, with a note of any detailed modifications which
might be
...