SIST EN ISO 1514:2005
(Main)Paints and varnishes - Standard panels for testing (ISO 1514:2004)
Paints and varnishes - Standard panels for testing (ISO 1514:2004)
ISO 1514:2004 specifies several types of standard panel and describes procedures for their preparation prior to painting. These standard panels are for use in general methods of test for paints, varnishes and related products.
Beschichtungsstoffe - Norm-Probenplatten (ISO 1514:2004)
Diese Internationale Norm legt mehrere Arten von Probenplatten fest und beschreibt Verfahren zu ihrer Vorbereitung vor dem Beschichten. Diese Norm-Probenplatten werden für allgemeine Verfahren zur Prüfung von Beschichtungsstoffen verwendet.
Folgende Arten von Norm-Probenplatten sind festgelegt:
a) Stahlplatten, vorbereitet durch:
Reinigen mit Lösemitteln,
Reinigen mit wässrigen Reinigungsmitteln,
Schleifen,
Phosphatieren,
Strahlen (nur Hinweise);
b) Weißblech-Platten, vorbereitet durch:
Reinigen mit Lösemitteln,
Reinigen mit wässrigen Reinigungsmitteln,
Schleifen (Glätten);
c) Verzinkte Platten, vorbereitet durch:
Reinigen mit Lösemitteln,
Reinigen mit wässrigen Reinigungsmitteln,
Schleifen,
Chemisches Behandeln;
d) Aluminiumplatten, vorbereitet durch:
Reinigen mit Lösemitteln,
Reinigen mit wässrigen Reinigungsmitteln,
Schleifen (Glätten),
Erzeugen einer Chromat-Umwandlungsschicht;
e) Glasplatten, vorbereitet durch:
Reinigen mit Lösemitteln,
Reinigen mit wässriger Netzmittellösung;
f) Hartfaser-Platten;
g) Gipskartonplatten;
h) Faser-Zementplatten.
ANMERKUNG Platten aus anderen Werkstoffen und nach anderen Verfahren vorbereitete Platten dürfen nach Vereinbarung verwendet werden, wenn dies für das zu prüfende Produkt festgelegt ist.
Peintures et vernis - Panneaux normalisés pour essais (ISO 1514:2004)
L'ISO 1514:2004 spécifie divers types de panneaux normalisés et décrit les méthodes de préparation avant mise en peinture. Ces panneaux normalisés sont à utiliser dans les méthodes générales d'essai des peintures, des vernis et des produits assimilés.
Barve in laki - Standardne ploščice za preskušanje (ISO 1514:2004)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 1514:2005
01-april-2005
1DGRPHãþD
SIST EN ISO 1514:1997
%DUYHLQODNL6WDQGDUGQHSORãþLFH]DSUHVNXãDQMH ,62
Paints and varnishes - Standard panels for testing (ISO 1514:2004)
Beschichtungsstoffe - Norm-Probenplatten (ISO 1514:2004)
Peintures et vernis - Panneaux normalisés pour essais (ISO 1514:2004)
Ta slovenski standard je istoveten z: EN ISO 1514:2004
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 1514:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 1514:2005
---------------------- Page: 2 ----------------------
SIST EN ISO 1514:2005
EUROPEAN STANDARD
EN ISO 1514
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 87.040 Supersedes EN ISO 1514:1997
English version
Paints and varnishes - Standard panels for testing (ISO
1514:2004)
Peintures et vernis - Panneaux normalisés pour essais Beschichtungsstoffe - Norm-Probenplatten (ISO
(ISO 1514:2004) 1514:2004)
This European Standard was approved by CEN on 8 November 2004.
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,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1514:2004: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 1514:2005
EN ISO 1514:2004 (E)
Foreword
This document (EN ISO 1514:2004) 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 June 2005, and conflicting national
standards shall be withdrawn at the latest by June 2005.
This document supersedes EN ISO 1514:1997.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 1514:2004 has been approved by CEN as EN ISO 1514:2004 without any
modifications.
2
---------------------- Page: 4 ----------------------
SIST EN ISO 1514:2005
INTERNATIONAL ISO
STANDARD 1514
Fourth edition
2004-12-01
Paints and varnishes — Standard panels
for testing
Peintures et vernis — Panneaux normalisés pour essais
Reference number
ISO 1514:2004(E)
©
ISO 2004
---------------------- Page: 5 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2004 – All rights reserved
---------------------- Page: 6 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 2
3 Steel panels . 2
4 Tinplate panels . 6
5 Zinc- and zinc-alloy-coated panels . 6
6 Aluminium panels . 7
7 Glass panels . 10
8 Hardboard . 10
9 Paper-faced plasterboard. 10
10 Fibre-reinforced panels . 11
Annex A (informative) General guidelines on preparation of steel panels by blast-cleaning . 12
Annex B (informative) Characterization of zinc and zinc-alloy coatings. 13
Bibliography . 15
© ISO 2004 – All rights reserved iii
---------------------- Page: 7 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(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 1514 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
This fourth edition cancels and replaces the third edition (ISO 1514:1993), which has been technically revised.
iv © ISO 2004 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
Introduction
For many of the test methods most widely used for paints and varnishes, the type of panel used and the
particular way in which it is prepared for use can effect the test results to a significant degree. Consequently, it
is important to standardize as carefully as possible both the panels and the procedures used to prepare the
panels prior to painting. It is equally desirable to reduce to a minimum the number of different “standard
panels” required for use in a paint testing laboratory.
It is not possible to include in an International Standard all the types of panels and preparation needed for
paint testing and, in selecting those described in this standard, a distinction has been drawn between three
different situations.
The first situation arises when the paint, varnish or other product is being tested in relation to a particular
industrial application. This testing is most conveniently carried out on a panel or substrate that corresponds
closely (regarding material, cleaning procedure and subsequent surface preparation, such as grit-blasting or
chemical pretreatment) to the actual industrial application involved. In such instances, the only guidance that
needs to be given regarding the panel is to state
a) that the interested parties should reach agreement beforehand on the details of the materials and
procedures to be used in preparing the substrate, and
b) that these should be stated in the test report.
The second situation arises when the test method requires, in order to be carried out, a specially prepared test
panel specific to that test; for example, an optically plane panel might be required for gloss measurement. In
such instances, a detailed specification for both the panel and the preparation procedure should be given in
the description of the test method concerned.
The third situation arises when neither of the above two situations applies. In such cases, the product needs
to be tested on an agreed surface which is capable of good reproducibility. It is desirable to use a material that
is generally available in standard quality and can be conveniently cleaned or otherwise prepared so as to
provide a consistent surface. The fact that this might not necessarily be the type of surface on which the
product will be applied in practice is of less significance.
This International Standard is concerned with the third situation. It lays down preparation procedures that are
known to be reproducible and gives additional guidance in instances where there might still be doubt because
of lack of international uniformity of procedure.
© ISO 2004 – All rights reserved v
---------------------- Page: 9 ----------------------
SIST EN ISO 1514:2005
---------------------- Page: 10 ----------------------
SIST EN ISO 1514:2005
INTERNATIONAL STANDARD ISO 1514:2004(E)
Paints and varnishes — Standard panels for testing
WARNING — This International Standard prescribes the use of chemicals, including hexavalent
chromium, and apparatus that can pose health and safety hazards. The standard does not purport to
address all of the safety problems associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety practices and to determine the applicability of regulatory
limitations prior to use.
1 Scope
This International Standard specifies several types of standard panel and describes procedures for their
preparation prior to painting. These standard panels are for use in general methods of test for paints,
varnishes and related products.
The following types of standard panel are specified:
a) steel panels, prepared by
solvent cleaning,
aqueous cleaning,
abrasion,
phosphate treatment,
blast-cleaning (notes for guidance only);
b) tinplate panels, prepared by
solvent cleaning,
aqueous cleaning,
abrasion (burnishing);
c) zinc-coated panels, prepared by
solvent cleaning,
aqueous cleaning,
abrasion,
chemical treatment;
d) aluminium panels, prepared by
solvent cleaning,
aqueous cleaning,
abrasion (burnishing),
chromate conversion coating;
© ISO 2004 – All rights reserved 1
---------------------- Page: 11 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
e) glass panels, prepared by
solvent cleaning,
detergent cleaning;
f) hardboard panels;
g) paper-faced plasterboard panels;
h) fibre-reinforced cement panels.
NOTE Panels made from other materials and by other preparation procedures may be used by agreement, when
specified for the product under test.
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 209-1:1989, Wrought aluminium and aluminium alloys — Chemical composition and forms of products —
Part 1: Chemical composition
ISO 2695, Fibre building boards — Hard and medium boards for general purposes — Quality specifications —
Appearance, shape and dimensional tolerances
ISO 2696, Fibre building boards — Hard and medium boards for general purposes — Quality specifications —
Water absorption and swelling in thickness
ISO 3574, Cold-reduced carbon steel sheet of commercial and drawing qualities
ISO 3696:1987, Water for analytical laboratory use — Specification and test methods
ISO 8336, Fibre-cement flat sheets
ISO 10546, Chemical conversion coatings — Rinsed and non-rinsed chromate conversion coatings on
aluminium and aluminium alloys
ISO 11949, Cold-reduced electrolytic tinplate
3 Steel panels
3.1 Material
Steel panels intended for general testing (as opposed to panels intended for testing for particular applications
and uses) shall be manufactured from flattened mild steel in sheet or strip form. The steel used shall be free
from rust, scratches, staining, discoloration and other surface defects. The physical dimensions of the panel
shall be as specified in the description of the test method, or as otherwise agreed. Unless otherwise agreed
upon between the purchaser and the seller, the steel shall be of one of the types specified below. For certain
types of testing, it might be necessary to use steel of a greater thickness than specified for the types listed
below.
a) Type 1 steel is a commercial quality cold-reduced type with a sheet thickness of 0,60 mm to 1,00 mm.
Type CR1 steel, conforming to the requirements of ISO 3574, is a suitable commercial quality cold-
reduced steel. The steel shall have a matt finish, with a surface roughness (Ra) of 0,63 µm to 1,65 µm.
This finish is typical of steel used for painted surfaces on automobiles and appliances.
2 © ISO 2004 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
b) Type 2 steel is a fully killed, cold-reduced type with a sheet thickness of 0,75 mm to 0,80 mm. Type CR4
steel, conforming to the requirements of ISO 3574, is a suitable fully killed cold-reduced steel. The panels
shall show a minimum of surface roughness and discoloration. It is recommended that the surface
roughness (Ra) of the steel, as received, does not exceed 1,2 µm.
c) Type 3 steel is a commercial quality cold-reduced type with a sheet thickness of 0,25 mm to 0,60 mm.
The steel shall have a smooth finish, with a surface roughness (Ra) not higher than 0,51 µm. This finish is
useful for measuring colour, gloss, flexibility or adhesion of coatings, where it is desirable to minimize the
effects of variability in the surface finish.
NOTE Guidance on blast-cleaning is given in Annex A for use when blast-cleaned steel panels are required (see
also 3.7).
3.2 Storage prior to preparation
Prior to preparation, panels shall be stored in a manner that protects them from corrosion. Suitable methods
include wrapping the panels in paper treated with a vapour-phase inhibitor and storage in a neutral light
mineral oil or hydrocarbon solvent free from additives.
NOTE For example, panels may be either totally immersed in oil or coated with oil and then wrapped individually in
paper impregnated with it. Alternatively, the panels may be stored in a desiccator containing an active desiccant (silica gel,
for example).
3.3 Preparation by solvent cleaning
Wipe the panel to remove any excess oil, and then wash it thoroughly with a suitable solvent to remove all
traces of oil.
NOTE Solvents which evaporate quickly may be used, provided that they are neither acidic nor alkaline and that
toxicity hazards are avoided (see WARNING).
Ensure that any small fibres deposited by cleaning cloths are removed in the cleaning process, and that cloths
are changed at predetermined intervals to avoid redeposition of oily residues. Do not contaminate the cleaned
panels. Allowing the solvent to evaporate, lightly wiping the panels with a clean linen cloth and subjecting the
panels to a stream of warm air are suitable methods of drying. If necessary, lightly warm the panels to remove
any traces of condensed moisture.
If a large number of panels is prepared, it is prudent to check every 20th panel for cleanliness. The suggested
method for checking the cleanliness is to wipe the panel with a clean, white paper tissue. The cleaning
process shall be regarded as satisfactory if there is no pickup of soil on the tissue. If there is found to be
residual soil on the panel being checked, it is necessary to repeat the cleaning process on all of the panels
cleaned since the previous wipe test.
If it is not feasible to apply the paint coating immediately after cleaning, the cleaned panels shall be stored in a
dry and clean atmosphere, such as a desiccator containing an active desiccant, until required for use. It is also
acceptable practice to wrap the panels in paper treated with a vapour-phase inhibitor.
3.4 Preparation by aqueous cleaning (spray or immersion process)
Clean the panels with a commercially available aqueous alkaline cleaner. A spray cleaning process is
recommended, but an immersion cleaning process is also acceptable. Maintain the cleaner concentration and
temperature in accordance with the recommendations of the cleaner manufacturer.
Cleaning by a spray process requires the following four steps:
a) Clean each side of the panel for a period of not less than 10 s. Regulate the temperature and spray
pressure in accordance with the recommendations of the cleaner manufacturer.
© ISO 2004 – All rights reserved 3
---------------------- Page: 13 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
b) Rinse each side of the panel with tap water. Take steps to ensure that the rinse water does not become
significantly contaminated during the cleaning process. This can be accomplished by allowing clean tap
water to run into the rinse tank in such a way that the tank overflows continuously or periodically.
c) Rinse each side of the panel with deionized water having a conductivity of not greater than 20 µS/cm.
d) Immediately after rinsing, force-dry the panels in an oven or in a stream of hot air.
If a large number of panels is prepared, it is prudent to check the panels periodically for cleanliness. In
addition to the white cloth wipe method specified in 3.3, a water break test should be used on panels prepared
by aqueous cleaning. The surface of a cleaned panel should be water break free. This is determined by
immersing the panel momentarily in distilled or deionized water. When the panel is removed, the water should
form a continuous unbroken film on the surface of the panel, without beading up into discrete droplets or other
water breaks.
3.5 Preparation by abrasion
3.5.1 General
Some testing applications require a more uniform and reproducible surface than is available on steel, as rolled
by the mill. In such cases, it is necessary to remove surface variability and contamination through mechanical
abrasion. To ensure complete removal of contamination and variability, it is necessary to completely remove
the original mill surface. The amount of surface removal required will depend somewhat on the original
surface profile, but it shall never be less than 0,7 µm, which may conveniently be determined by measuring
2 2
the loss in mass of the abraded panel (a mass loss per unit area of 5 g/m to 6 g/m is approximately equal to
a thickness decrease of 0,7 µm).
Prior to abrading, panels should be cleaned as described in 3.3 or 3.4. Unless otherwise agreed, the surface
removal shall be accomplished as described in 3.5.2 to 3.5.4.
NOTE Subject to prior agreement, mineral solvent may be used as a lubricant in the abrasion operations.
3.5.2 Hand abrasion
This involves abrading the panel by hand using P220 silicone carbide paper. The following is a suitable
sequence of operations for use in hand abrasion:
a) Abrade the panel uniformly straight across its face in a direction parallel to any one side.
b) Abrade the panel at a right angle to the initial direction until all signs of the original abrasion have been
removed.
c) Abrade the panel using a circular motion, with a diameter of approximately 80 mm to 100 mm, until a
pattern is produced consisting solely of circular abrasion marks, superimposed one upon another.
3.5.3 Circular mechanical abrasion
This involves burnishing the panel by mechanical means using P220 silicon carbide paper. When this method
is employed, the panel shall be burnished using a circular motion, with a diameter of approximately 80 mm to
100 mm. The operation shall be considered complete when no sign is visible of the original surface or any
undulations.
3.5.4 Linear grinding
This involves a conveyor system using an abrasive belt mounted on a vertical grinding head to remove the
original mill surface and produce a linear scratch finish on the panel. Grinding the surface with abrasive belts
removes contamination and provides a surface that is more uniform and reproducible than a typical mill finish.
4 © ISO 2004 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
A P100 aluminium oxide abrasive belt is suitable for use in this operation. The surface roughness (Ra) of the
polished panel shall be between 0,50 µm and 1,14 µm.
3.5.5 Inspection and cleaning
Inspect the abraded panels to ensure that the original surface has been completely removed. Clean the
panels thoroughly as described in 3.3 or 3.4 to remove any loose grit, steel particles or other contaminants.
Do not contaminate the cleaned panels.
If it is not feasible to apply the subsequent coating immediately, store the clean panels in a clean and dry
atmosphere, such as a desiccator containing an active desiccant, or wrap the panels in paper impregnated
with a vapour-phase inhibitor.
3.6 Preparation by phosphate treatment
3.6.1 General
Phosphate conversion coatings are available from a number of sources, as proprietary compounds or
processes, for application by spray or immersion. Follow the manufacturer’s directions as to the application of
the conversion coating. Preparation of test panels may consist of one or more steps of cleaning, rinsing and
conditioning prior to the application of the conversion coating. Additional rinsing will usually be required after
the conversion coating has been applied. If phosphate-treated panels are required, use one of the following
methods of preparation.
3.6.2 Crystalline zinc phosphate treatment
This conversion coating method consists of reacting the steel surface in a zinc acid phosphate solution
containing oxidizing agents and accelerating salts. The steel surface is converted to a crystalline phosphate
coating that inhibits corrosion and increases the adherence and durability of subsequently applied paint films.
This treatment can be applied by spraying, by immersion or by a soft-bristle nylon brush. Solution
temperatures, concentrations and contact times will vary with the method of application and should be
maintained in accordance with the chemical manufacturer’s recommendations. Zinc phosphate coatings are
typically grey to grey-white in colour.
3.6.3 Amorphous iron phosphate treatment
This conversion coating method consists of reacting the steel surface in an acid phosphate solution containing
oxidizing agents and accelerating salts. The steel surface is converted to an amorphous iron phosphate
coating that improves the adhesion of subsequently applied coatings and inhibits corrosion to a lesser degree
than the crystalline zinc phosphate coating. This treatment can be applied by spraying or immersion. Solution
temperatures, concentrations and contact times will vary with the method of application and should be
maintained in accordance with the chemical manufacturer’s recommendations. Iron phosphate coatings
typically range in colour from yellow-blue to purple.
3.7 Preparation by blast-cleaning
Before blast-cleaning, clean the panels using the procedure described in 3.3 or 3.4.
General guidance on the preparation of steel panels by blast-cleaning is given in Annex A.
NOTE It is emphasized, however, that this preparation by blast-cleaning is not intended for cold-rolled steel panels
that are specified in 3.1 for general testing purposes.
© ISO 2004 – All rights reserved 5
---------------------- Page: 15 ----------------------
SIST EN ISO 1514:2005
ISO 1514:2004(E)
4 Tinplate panels
4.1 Material
The panel shall be bright-finish standard grade tinplate conforming to the requirements of ISO 11949, of
nominal thickness between 0,2 mm and 0,3 mm, temper number T52 (coated equally with tin on both sides).
When the tinplate panels prepared in accordance with this International Standard are subsequently used in a
test method, it is important that the designation code for the tinplate used is recorded in the test report for the
test method concerned.
4.2 Preparation by solvent or aqueous cleaning
It is not necessary for tinplate panels to be specially protected during storage in the same manner as bare
steel panels. Nevertheless, the surface of the panels can become contaminated with lubricants during
processing. It is therefore recommended that the panels be cleaned prior to use by the procedure specified in
3.3 or 3.4 for steel panels.
NOTE Although solvent and aqueous cleaning processes will not entirely remove the organic post-plating treatment,
the remaining residue has been found not to have a significant effect on the precision of test results.
4.3 Preparation by abrasion
Abraded tinplate panels are recommended if a test surface more uniform than that produced by solvent or
aqueous cleaning is required. Carry out the cleaning operation as described for steel panels (see 3.5) except
that the abrasion shall be performed much more lightly to avoid embedding abrasive in the surface and to
avoid the complete removal of the tin plating at any point. It is, therefore, recommended that a good quality,
fine silicon carbide paper be used, such as grade P320.
Continue the abrasion until the whole of the surface of the panel is covered by a pattern of circular abrasion
marks superimposed one upon another and the original surface pattern is no longer visible to the naked eye.
Clean the abraded panels thoroughly before use, as described in 3.3 or 3.4, to ensure that all loose grit, tin
particles and other contaminants are removed. Do not contaminate the cleaned panel.
If the paint coating cannot be applied immediately, store the cleaned panels in a dry and clean atmosphere,
such as in a desiccator containing an active desiccant, or wrap the panels in paper which has been
impregnated with a vapour-phase inhibitor until required.
5 Zinc- and zinc-alloy-coated panels
5.1 Material
The panel shall be cold-rolled carbon steel sheet coated with zinc or a zinc alloy. The specific type of zinc or
zinc-alloy coating, as well as the thickness and physical dimensions of the panel shall be agreed between the
purchaser and the seller. The different types of zinc and zinc-allo
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.