Paints and varnishes - Determination of resistance to liquids - Part 5: Temperature-gradient oven method (ISO 2812-5:2018)

This document specifies a method, using a temperature-gradient oven, for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of liquids or paste-like products.
This method enables the testers to determine the effects of the test substance on the coating and, if necessary, to assess the damage to the substrate.

Beschichtungsstoffe - Bestimmung der Beständigkeit gegen Flüssigkeiten - Teil 5: Verfahren mit dem Gradientenofen (ISO 2812-5:2018)

Peintures et vernis - Détermination de la résistance aux liquides - Partie 5: Méthode au four à gradient de température (ISO 2812-5:2018)

Le présent document spécifie une méthode utilisant un four à gradient de température pour déterminer la résistance d'un système de revêtement monocouche ou multicouche à l'action de liquides ou de produits pâteux.
Cette méthode permet aux opérateurs de déterminer l'effet de la substance d'essai sur le revêtement et, si nécessaire, d'évaluer la détérioration du subjectile.

Barve in laki - Ugotavljanje odpornosti proti tekočinam - 5. del: Metoda s pečjo s temperaturnim gradientom (ISO 2812-5:2018)

Ta dokument določa metodo s pečjo s temperaturnim gradientom za ugotavljanje odpornosti posamezne plasti ali večplastnih sistemov premazov proti učinkom tekočin ali izdelkov, podobnih pasti.
Ta metoda preskuševalcem omogoča določiti učinke preskušane snovi na premaz in po potrebi oceniti škodo na podlagi.

General Information

Status
Published
Public Enquiry End Date
02-Nov-2017
Publication Date
06-Nov-2018
Technical Committee
IBLP - Paints and varnishes
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Oct-2018
Due Date
10-Dec-2018
Completion Date
07-Nov-2018

Relations

Effective Date
01-Dec-2018

Overview

EN ISO 2812-5:2018 - Paints and varnishes: Determination of resistance to liquids - Part 5: Temperature‑gradient oven method - specifies a laboratory procedure to evaluate how individual-layer or multi-layer coating systems resist exposure to liquids or paste-like products. The method uses a temperature-gradient oven to apply a controlled thermal gradient beneath coated test panels while droplets of test substances are applied, enabling assessment of coating degradation and, if necessary, damage to the substrate.

Key topics and technical requirements

  • Test principle: apply droplets of the test substance to a coated panel, expose the panel in a temperature-gradient oven, then assess effects.
  • Gradient oven: must generate a linear temperature gradient along the panel and limit transverse variation (maximum gradient over the panel width ≤ 2.5 °C). Heat is applied from the bottom for homogeneous transfer.
  • Typical test settings (as specified unless otherwise agreed):
    • Oven gradient: 35 °C to 80 °C, with a linear increase of 1 °C per 1 cm along the panel.
    • Exposure time: 30 minutes.
    • Droplet volume: 25 µL to 100 µL (use a metering pipette).
    • Test panel dimensions: nominally 560 mm × 100 mm, substrate thickness 0.7–1.0 mm (steel unless agreed otherwise).
    • Conditioning: panels conditioned for at least 16 h at (23 ± 2) °C and (50 ± 5)% RH (ISO 3270).
  • Measurements and evaluation: determine dry film thickness (ISO 2808), assess visual effects (reference to ISO 13076 for lighting and visual procedure), and wipe/clean panel after exposure before assessment.
  • Limitations: temperature and humidity strongly influence results; any deviations must be agreed and reported.

Applications and practical value

  • Useful for coating manufacturers, test laboratories, R&D teams, quality control, specifiers, and certification bodies who need to:
    • Screen liquid resistance of paints, varnishes and coating systems.
    • Compare formulations or curing regimes under a controlled thermal gradient.
    • Evaluate potential substrate damage after exposure to chemicals, oils, cleaners or paste-like products.
    • Support product data sheets, conformity testing, and durability assessments.

Who should use this standard

  • Laboratories performing standardized coating tests.
  • Formulation chemists and product developers evaluating chemical resistance.
  • Quality assurance personnel and spec writers needing reproducible, comparable test data.
  • Certification and regulatory bodies assessing performance claims.

Related standards

  • ISO 1513, ISO 1514, ISO 2808, ISO 3270, ISO 4618, ISO 13076, ISO 15528 - referenced for sample preparation, panel preparation, film thickness, conditioning, terminology, lighting/visual assessment and sampling.

Keywords: EN ISO 2812-5:2018, temperature-gradient oven, resistance to liquids, paints and varnishes, coating durability, liquid resistance test, gradient oven method.

Standard

SIST EN ISO 2812-5:2018

English language
14 pages
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Frequently Asked Questions

SIST EN ISO 2812-5:2018 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Paints and varnishes - Determination of resistance to liquids - Part 5: Temperature-gradient oven method (ISO 2812-5:2018)". This standard covers: This document specifies a method, using a temperature-gradient oven, for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of liquids or paste-like products. This method enables the testers to determine the effects of the test substance on the coating and, if necessary, to assess the damage to the substrate.

This document specifies a method, using a temperature-gradient oven, for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of liquids or paste-like products. This method enables the testers to determine the effects of the test substance on the coating and, if necessary, to assess the damage to the substrate.

SIST EN ISO 2812-5:2018 is classified under the following ICS (International Classification for Standards) categories: 87.040 - Paints and varnishes. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN ISO 2812-5:2018 has the following relationships with other standards: It is inter standard links to SIST EN ISO 2812-5:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN ISO 2812-5:2018 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-december-2018
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SIST EN ISO 2812-5:2007
%DUYHLQODNL8JRWDYOMDQMHRGSRUQRVWLSURWLWHNRþLQDPGHO0HWRGDVSHþMRV
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Paints and varnishes - Determination of resistance to liquids - Part 5: Temperature-
gradient oven method (ISO 2812-5:2018)
Beschichtungsstoffe - Bestimmung der Beständigkeit gegen Flüssigkeiten - Teil 5:
Verfahren mit dem Gradientenofen (ISO 2812-5:2018)
Peintures et vernis - Détermination de la résistance aux liquides - Partie 5: Méthode au
four à gradient de température (ISO 2812-5:2018)
Ta slovenski standard je istoveten z: EN ISO 2812-5:2018
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 2812-5
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2018
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 2812-5:2007
English Version
Paints and varnishes - Determination of resistance to
liquids - Part 5: Temperature-gradient oven method (ISO
2812-5:2018)
Peintures et vernis - Détermination de la résistance Beschichtungsstoffe - Bestimmung der Beständigkeit
aux liquides - Partie 5: Méthode au four à gradient de gegen Flüssigkeiten - Teil 5: Verfahren mit dem
température (ISO 2812-5:2018) Gradientenofen (ISO 2812-5:2018)
This European Standard was approved by CEN on 12 August 2018.

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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2812-5:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 2812-5:2018) 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 March 2019, and conflicting national standards shall
be withdrawn at the latest by March 2019.
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.
This document supersedes EN ISO 2812-5:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, 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 2812-5:2018 has been approved by CEN as EN ISO 2812-5:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 2812-5
Second edition
2018-08
Paints and varnishes — Determination
of resistance to liquids —
Part 5:
Temperature-gradient oven method
Peintures et vernis — Détermination de la résistance aux liquides —
Partie 5: Méthode au four à gradient de température
Reference number
ISO 2812-5:2018(E)
©
ISO 2018
ISO 2812-5:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 2812-5:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Limitations . 2
6 Apparatus . 2
7 Test substances . 2
8 Sampling . 2
9 Test panels . 2
9.1 Substrate . 2
9.2 Preparation and coating . . 3
9.3 Coating thickness . 3
10 Procedure. 3
10.1 Conditioning of the test panels . 3
10.2 Test conditions . 3
10.3 Determination . 3
11 Evaluation . 3
12 Precision . 4
12.1 Repeatability limit (r) . 4
12.2 Reproducibility limit (R) . 4
13 Test report . 4
Annex A (informative) Examples of test substances . 5
Bibliography . 7
ISO 2812-5:2018(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.
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 (see 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 sh
...

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