SIST EN ISO 20567-1:2007
(Main)Paints and varnishes - Determination of stone-chip resistance of coatings - Part 1: Multi-impact testing (ISO 20567-1:2005)
Paints and varnishes - Determination of stone-chip resistance of coatings - Part 1: Multi-impact testing (ISO 20567-1:2005)
ISO 20567-1:2005 specifies three methods for the evaluation of the resistance of automobile finishes and other coatings to chilled-iron grit projected onto the surface under test to simulate the impact of small stones.
Beschichtungsstoffe - Prüfung der Steinschlagfestigkeit von Beschichtungen - Teil 1: Multischlagprüfung (ISO 20567-1:2005)
Peintures et vernis - Détermination de la résistance des revetements aux impacts de cailloux - Partie 1: Essais de chocs multiples (ISO 20567-1:2005)
L'ISO 20567-1:2005 spécifie trois méthodes d'évaluation de la résistance des revêtements, notamment ceux utilisés pour la finition des carrosseries de voitures, à la projection de grenaille angulaire en fer trempé contre la surface soumise à l'essai, cette projection simulant l'impact de petits cailloux.
Barve in laki - Ugotavljanje odpornosti premazov proti udarcem kamenja - 1. del: Preskušanje z več udarci (ISO 20567-1:2005)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2007
%DUYHLQODNL8JRWDYOMDQMHRGSRUQRVWLSUHPD]RYSURWLXGDUFHPNDPHQMDGHO
3UHVNXãDQMH]YHþXGDUFL,62
Paints and varnishes - Determination of stone-chip resistance of coatings - Part 1: Multi-
impact testing (ISO 20567-1:2005)
Beschichtungsstoffe - Prüfung der Steinschlagfestigkeit von Beschichtungen - Teil 1:
Multischlagprüfung (ISO 20567-1:2005)
Peintures et vernis - Détermination de la résistance des revetements aux impacts de
cailloux - Partie 1: Essais de chocs multiples (ISO 20567-1:2005)
Ta slovenski standard je istoveten z: EN ISO 20567-1:2006
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 20567-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2006
ICS 87.040
English Version
Paints and varnishes - Determination of stone-chip resistance of
coatings - Part 1: Multi-impact testing (ISO 20567-1:2005)
Peintures et vernis - Détermination de la résistance des Beschichtungsstoffe - Prüfung der Steinschlagfestigkeit von
revêtements aux impacts de cailloux - Partie 1: Essais de Beschichtungen - Teil 1: Multischlagprüfung (ISO 20567-
chocs multiples (ISO 20567-1:2005) 1:2005)
This European Standard was approved by CEN on 11 September 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
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Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20567-1:2006: E
worldwide for CEN national Members.
Foreword
The text of ISO 20567-1:2005 has been prepared by Technical Committee ISO/TC 35 "Paints
and varnishes” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 20567-1:2006 by 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 April 2007, and conflicting national
standards shall be withdrawn at the latest by April 2007.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 20567-1:2005 has been approved by CEN as EN ISO 20567-1:2006 without any
modifications.
INTERNATIONAL ISO
STANDARD 20567-1
First edition
2005-02-15
Paints and varnishes — Determination
of stone-chip resistance of coatings —
Part 1:
Multi-impact testing
Peintures et vernis — Détermination de la résistance des revêtements
aux impacts de cailloux —
Partie 1: Essais de chocs multiples
Reference number
ISO 20567-1:2005(E)
©
ISO 2005
ISO 20567-1:2005(E)
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ii © ISO 2005 – All rights reserved
ISO 20567-1:2005(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 1
3 Principle . 2
4 Apparatus . 2
5 Materials. 3
6 Sampling . 4
7 Test panels . 4
8 Procedure . 4
9 Evaluation . 5
10 Precision . 5
11 Test report . 6
Annex A (informative) Recommended procedure for calibration of test apparatus. 10
ISO 20567-1:2005(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 20567-1 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
ISO 20567 consists of the following parts, under the general title Paints and varnishes — Determination of
stone-chip resistance of coatings:
Part 1: Multi-impact testing
Part 2: Single-impact test with a guided impact body
iv © ISO 2005 – All rights reserved
ISO 20567-1:2005(E)
Introduction
In the automobile industry, multi-layer paint coatings are applied to car bodies for protection. Grit, road-metal
and other materials can damage these coatings in such a way that individual layers come off or the whole
coating delaminates from the substrate.
Stone chipping can be simulated by means of single- and/or multi-impact tests. Part 1 of this International
Standard describes multi-impact testing, Part 2 describes a single-impact test.
This part of ISO 20567 is based on the German Standard DIN 55996-1:2001, Beschichtungsstoffe — Prüfung
der Steinschlagfestigkeit von Beschichtungen — Teil 1: Multischlagprüfung (Paints and varnishes — Stone
chip resistance test for coatings — Part 1: Multi impact test).
NOTE A recommended procedure for calibration of the apparatus is given in Annex A. Note that this annex is
informative because the method described in it is not the only one suitable for checking whether a uniform impact pattern
is produced.
INTERNATIONAL STANDARD ISO 20567-1:2005(E)
Paints and varnishes — Determination of stone-chip resistance
of coatings —
Part 1:
Multi-impact test
1 Scope
This part of ISO 20567 specifies three methods for the evaluation of the resistance of automobile finishes and
other coatings to chilled-iron grit projected onto the surface under test to simulate the impact of small stones.
2 Normative references
The following referenced documents are indispensable for the application of this document. 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 samples for testing
ISO 1514, Paints and varnishes — Standard panels for testing
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 3270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and
testing
ISO 11124-2, Preparation of steel substrates before application of paints and related products —
Specifications for metallic blast-cleaning abrasives — Part 2: Chilled-iron grit
ISO 11125-2, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 2: Determination of particle size distribution
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 21227-2, Paints and varnishes — Evaluation of defects on coated surfaces using optical imaging —
Part 2: Evaluation procedure for multi-impact stone-chipping test
IEC 60454-2, Specification for pressure-sensitive adhesive tapes for electrical purposes — Part 2: Methods of
test
ISO 20567-1:2005(E)
3 Principle
The stone-chip resistance of the coating under test is checked by projecting a large number of small sharp-
edged bodies onto it in a short period of time. The material used in the test is chilled-iron grit which is
projected onto the coating at a defined angle using compressed air. The extent of the damage caused will
depend not only on the angle, but also on the pressure level, the mass of the projectiles, the duration of the
bombardment and the design of the test apparatus.
Loose fragments of coating material are removed using adhesive tape.
The extent of the damage is determined by comparison with pictorial reference standards.
4 Apparatus
Ordinary laboratory apparatus, plus the following:
4.1 Multi-impact tester
Figures 1 and 2 show the test apparatus and its dimensions.
The vibrating conveyor carries the grit from the funnel into the air blast in front of the grit-accelerating nozzle.
It shall be designed so that the grit feed speed can be varied. The apparatus shall be capable of projecting
500 g of grit during a period of 10 s. The pressure chamber shall be large enough to allow the specified
working pressure of 200 kPa to be held at a constant level for at least 10 s while the solenoid valve is open.
Used grit can be taken from the grit-catching chamber after the test and used again to a limited extent (see
5.1).
Key
1 solenoid valve 9 vibrating conveyor
2 compressed-air line 10 grit feed funnel
3 pressure reducer (to working pressure) 11 g
...
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