SIST EN ISO 2812-2:2019 PDF

Name: SIST EN ISO 2812-2:2019 — Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2:2018)
SKU: SIST EN ISO 2812-2:2019
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Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2:2018)

Название (английский):

SIST EN ISO 2812-2:2019

Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2:2018)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 29 января 2019 г.
ICS:: 87.040
Технический комитет:: IBLP - Paints and varnishes

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Описание (английский):

This document specifies a method for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of water by partial or full immersion. This method enables the determination of the effects of water on the coating and, if necessary, the assessment of the damage to the substrate.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

SIST EN ISO 2812-2:2019 titled "Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method" is an internationally recognized European standard developed by CEN in collaboration with ISO Technical Committee ISO/TC 35. This standard specifies a reliable laboratory method for assessing the resistance of both single-layer and multi-layer coating systems to water exposure through partial or full immersion testing. The standard provides a systematic approach to measure how coatings withstand water-induced degradation and, where applicable, evaluates any resultant damage to the substrate beneath the coating.

This updated 2018 version supersedes the 2007 edition with key technical revisions, improving the accuracy and applicability of water immersion testing in paints and varnishes quality assurance. It is widely adopted across Europe and aligned with ISO's international framework, ensuring consistency and comparability in coating performance testing.

Key Topics

Scope and Purpose Defines a standardized method for evaluating water resistance of coatings by immersing coated test panels in water and monitoring the effects based on predefined criteria.

Test Panels and Sample Preparation Specifies use of polished steel panels sized typically 150 mm x 100 mm x 0.7–1.0 mm, coated on one or both sides depending on testing agreements. Panels are dried, conditioned, and may be subjected to artificial damage like scribes or scrapes for corrosion impact studies.

Apparatus Requirements Mandates use of inert materials for any device in contact with water, with apparatus including a thermostatically controlled tank, circulation and aeration systems, and supports for test panels at an angle of 0° to 20° to the vertical.

Testing Procedure Panels can be partially (three-quarters length) or fully immersed in water maintained at 40 ± 2 °C, with water quality meeting ISO 3696 grade 3 specifications. Continuous water circulation and aeration ensure uniform test conditions.

Evaluation Criteria Visual and subjective assessments of coating changes such as blistering, discolouration, or substrate degradation are carried out during interim and final inspections to determine resistance level.

Relevant Definitions and Normative References Incorporates terms defined in ISO 4618 and references related ISO standards covering paint sampling, film thickness measurement (ISO 2808), scribing methods (ISO 17872), and cathodic disbonding resistance testing (ISO 15711).

Applications

Quality Control in Paint and Coating Manufacturing Used by manufacturers to verify coating formulations meet water resistance requirements, ensuring product durability.

Construction and Infrastructure Coatings Applicable for assessing protective paints used on steel and metal substrates exposed to moisture or submerged conditions such as bridges, pipelines, and marine structures.

Automotive and Transportation Industry Useful for evaluating water resistance of automotive paints and protective varnishes, contributing to corrosion protection and appearance retention.

Research and Development Enables R&D teams to compare coating systems objectively and optimize formulations for enhanced water resistance.

Regulatory Compliance and Certification Supports compliance with industry standards requiring demonstration of liquid resistance, aiding product registration and certification processes.

Related Standards

ISO 1513 – Examination and preparation of test samples for paints and varnishes.

ISO 1514 – Standard panels for testing paints and varnishes.

ISO 2808 – Measuring the dry film thickness of coatings.

ISO 3696 – Specification for purified water used in analytical laboratories.

ISO 4618 – Terms and definitions related to paints and varnishes.

ISO 4628-2 – Evaluation of coating degradation, specifically blistering assessment.

ISO 15711 – Resistance to cathodic disbonding of coatings in sea water.

ISO 17872 – Guidelines for scribe mark introduction for coating corrosion tests.

By following SIST EN ISO 2812-2:2019, industry professionals can reliably determine the water resistance performance of coatings, thus enhancing product longevity and maintaining structural integrity in aqueous environments. This method is an essential part of coating evaluation, helping users make informed decisions about coating selection for specific environmental conditions.

SIST EN ISO 2812-2:2019 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

SIST EN ISO 4618:2023

Paints and varnishes - Vocabulary (ISO 4618:2023)

SIST EN ISO 28080:2021

Hardmetals - Abrasion tests for hardmetals (ISO 28080:2021)

SIST EN ISO 17872:2020

Paints and varnishes - Guidelines for the introduction of scribe marks through coatings on metallic panels fo…

SIST EN ISO 15711:2005

Paints and varnishes - Determination of resistance to cathodic disbonding of coatings exposed to sea water (I…

SIST EN ISO 15138:2018

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BS ISO 15142-3:2003

Implants for surgery. Metal intramedullary nailing systems. Connection devices and reamer diameter measuremen…

SIST EN ISO 4628-2:2016

Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, a…