SIST EN ISO 16925:2014
(Main)Paints and varnishes - Determination of the resistance of coatings to pressure water-jetting (ISO 16925:2014)
Paints and varnishes - Determination of the resistance of coatings to pressure water-jetting (ISO 16925:2014)
EN-ISO 16925 specifies a test method for the assessment of the resistance of coatings to pressure waterjetting. The test method simulates the effects pressure-water jetting has on a coating.
Beschichtungsstoffe - Prüfung der Beständigkeit von Beschichtungen gegen Druckwasserstrahl (ISO 16925:2014)
Diese Internationale Norm legt ein Prüfverfahren zum Beurteilen der Beständigkeit von Beschichtungen gegen die Einwirkung eines Druckwasserstrahls fest. Das Prüfverfahren simuliert die Auswirkungen eines Druckwasserstrahls auf eine Beschichtung.
Peintures et vernis - Détermination de la résistance des revêtements à un jet d'eau sous pression (ISO 16925:2014)
L'ISO 16925:2014 spécifie une méthode d'essai pour l'évaluation de la résistance des revêtements à un jet d'eau sous pression. La méthode d'essai simule les effets d'un jet d'eau sous pression sur un produit de peinture.
Barve in laki - Ugotavljanje odpornosti premazov proti curkom vode pod tlakom (ISO 16925:2014)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 16925:2014
01-april-2014
Barve in laki - Ugotavljanje odpornosti premazov proti curkom vode pod tlakom
(ISO 16925:2014)
Paints and varnishes - Determination of the resistance of coatings to pressure water-
jetting (ISO 16925:2014)
Beschichtungsstoffe - Prüfung der Beständigkeit von Beschichtungen gegen
Druckwasserstrahl (ISO 16925:2014)
Peintures et vernis - Détermination de la résistance des revêtements à un jet d'eau sous
pression (ISO 16925:2014)
Ta slovenski standard je istoveten z: EN ISO 16925:2014
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 16925:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 16925:2014
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SIST EN ISO 16925:2014
EUROPEAN STANDARD
EN ISO 16925
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2014
ICS 87.040
English Version
Paints and varnishes - Determination of the resistance of
coatings to pressure water-jetting (ISO 16925:2014)
Peintures et vernis - Détermination de la résistance des Beschichtungsstoffe - Prüfung der Beständigkeit von
revêtements à un jet d'eau sous pression (ISO 16925:2014) Beschichtungen gegen Druckwasserstrahl (ISO
16925:2014)
This European Standard was approved by CEN on 20 December 2013.
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
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16925:2014 E
worldwide for CEN national Members.
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SIST EN ISO 16925:2014
EN ISO 16925:2014 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 16925:2014
EN ISO 16925:2014 (E)
Foreword
This document (EN ISO 16925:2014) 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 August 2014, and conflicting national standards shall be withdrawn at
the latest by August 2014.
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.
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 16925:2014 has been approved by CEN as EN ISO 16925:2014 without any modification.
3
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SIST EN ISO 16925:2014
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SIST EN ISO 16925:2014
INTERNATIONAL ISO
STANDARD 16925
First edition
2014-02-01
Paints and varnishes — Determination
of the resistance of coatings to
pressure water-jetting
Peintures et vernis — Détermination de la résistance des revêtements
à un jet d’eau sous pression
Reference number
ISO 16925:2014(E)
©
ISO 2014
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SIST EN ISO 16925:2014
ISO 16925:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
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
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Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 16925:2014
ISO 16925:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus and materials. 2
6 Sampling . 3
7 Preparation of test specimens . 4
7.1 Test specimens . 4
7.2 Preparation and coating . . 4
7.3 Thickness of coating . 4
8 Procedure. 4
8.1 Introducing the cut or the scribe . 4
8.2 Testing . 5
9 Evaluation . 6
9.1 General . 6
9.2 Evaluation with pictures to compare . 6
10 Precision . 6
10.1 General . 6
10.2 Repeatability limit (r) . 7
10.3 Reproducibility limit (R) . 7
11 Designation . 7
12 Test report . 7
Annex A (normative) Calibration of the test apparatus .14
Bibliography .17
© ISO 2014 – All rights reserved iii
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SIST EN ISO 16925:2014
ISO 16925:2014(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
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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. 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. 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 9,
General test methods for paints and varnishes.
iv © ISO 2014 – All rights reserved
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SIST EN ISO 16925:2014
INTERNATIONAL STANDARD ISO 16925:2014(E)
Paints and varnishes — Determination of the resistance of
coatings to pressure water-jetting
1 Scope
This International Standard specifies a test method for the assessment of the resistance of coatings to
pressure water-jetting. The test method simulates the effects pressure water-jetting has on a coating.
2 Normative references
The following 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 1513, Paints and varnishes — Examination and preparation of test samples
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 4618, Paints and varnishes — Terms and definitions
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 17872, Paints and varnishes — Guidelines for the introduction of scribe marks through coatings on
metallic panels for corrosion testing
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.
3.1
fracture strength
force required to exceed the attachment forces
— between coats or between coat and substrate (adhesion) and/or
— within a coat (cohesion)
[SOURCE: ISO 16276-1:2007, 3.1]
3.2
adhesion
phenomenon of attachment at the interface between a solid surface and another material caused by
molecular forces
Note 1 to entry: Adhesion should not be confused with cohesion.
[SOURCE: ISO 4618:2006, 2.6]
3.3
cohesion
forces that bind a film into an integral entity
Note 1 to entry: Cohesion should not be confused with adhesion.
Note 2 to entry: Breaks in cohesion can occur within the coating as well as the substrate. In case of breaks within
the substrate, it is subsumed under the term material delamination.
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SIST EN ISO 16925:2014
ISO 16925:2014(E)
[SOURCE: ISO 4618:2006, 2.54, modified — Note 2 to entry has been added.]
4 Principle
The resistance of a coated test specimen to the loss of adhesive strength is tested by means of defined
pressure water-jetting.
The extent of the damage of the test specimen primarily depends on, besides the adhesive strength, the
space between nozzle and test piece, the volumetric flow rate, the test time, the geometry of the nozzle,
the impact area, the angle of impact, and the water temperature of the jet, as well as the cutting and
scribing tool.
The evaluation is carried out by means of a visual comparison of pictures, in which characteristic values
are related to the peeled-off areas.
The parting line (plane) of the peeling shall be indicated in the test report (e.g. substrate/priming coat).
5 Apparatus and materials
Ordinary laboratory apparatus, together with the following:
5.1 Pressure water-jet, consisting of a high-pressure pump and a nozzle.
A high-pressure pump conveys the water from a storage bin. To avoid influences from variations in
pressure, it
...
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