EN ISO 7142:2023 PDF

Name: EN ISO 7142:2023 — Binders for paints and varnishes - Epoxy resins - General methods of test (ISO 7142:2023)
SKU: EN ISO 7142:2023
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Binders for paints and varnishes - Epoxy resins - General methods of test (ISO 7142:2023)

Название (английский):

EN ISO 7142:2023

Binders for paints and varnishes - Epoxy resins - General methods of test (ISO 7142:2023)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 22 февраля 2023 г.
Издание:: CEN EN 7142 edition 2 version 1
ICS:: 87.060.20

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Описание (английский):

This document specifies general methods of test for epoxy resins for use in paints, varnishes and similar products. It is also applicable to those solutions made from epoxy resins that are intended for use as binders for paints and varnishes. The test methods described in this document are not intended for epoxy esters.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 7142:2023 - published by CEN and identical to ISO 7142:2023 - defines general methods of test for epoxy resins used as binders for paints and varnishes. The standard specifies sampling, a set of agreed test methods, and reporting requirements for liquid epoxy resins, epoxy resin solutions and resins intended as binders. It explicitly excludes epoxy esters. This edition supersedes EN ISO 7142:2007 and contains editorial updates and a revised normative method for hydroxyl value determination.

Key topics and requirements

Scope and sampling: Representative sampling is required according to ISO 15528.

Mandatory properties and test methods (see Table 1 in the standard):

Colour - ISO 4630 (Gardner) or ISO 6271 (platinum‑cobalt).
Viscosity - ISO 3219‑2 (rotational/oscillatory rheometry) or agreed alternative.
Non‑volatile matter - ISO 3251.
Flash point - ISO 1523 or ISO 3679.
Epoxy equivalent - ISO 3001.
Hydroxyl value - normative Annex A (detailed titrimetric procedure).
Total chlorine / easily saponifiable chlorine - ISO 4615 and ISO 21627‑2.
Melting point - ISO 3146.
Softening point - ISO 4625‑1 (ring‑and‑ball) or ISO 4625‑2 (cup‑and‑ball).

Special provisions: Solid resins should be tested in a standard test solution (40 % mass fraction in diethylene glycol mono‑n‑butylether) and the solvent/concentration must be reported.

Test report requirements: include product identification, reference to ISO 7142:2023, test results and methods, any deviations or anomalies, and test dates.

Practical applications and users

Who uses it:

Paint, varnish and coating manufacturers
Raw material suppliers and resin producers
Quality control and R&D laboratories
Procurement and specification engineers
Regulatory and certification bodies

Practical value:

Standardized quality control of epoxy resins and binder solutions
Clear acceptance criteria for supplier contracts and specifications
Reliable data for formulation, processing and safety assessments
Consistent test reporting to support compliance and product development

Related standards

EN ISO 7142:2023 references several ISO methods commonly used in coatings testing, including:

Use EN ISO 7142:2023 when you need harmonized, industry‑recognized test procedures for epoxy binders in paints and varnishes.

EN ISO 7142:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications and users

Related standards

Технические детали

ISO 7142:2023

Binders for paints and varnishes — Epoxy resins — General methods of test

ISO 7142:2007

Binders for paints and varnishes — Epoxy resins — General methods of test

BS EN ISO 15528:2020

Paints, varnishes and raw materials for paints and varnishes. Sampling.

SIST EN ISO 4630:2016

Clear liquids - Estimation of colour by the Gardner colour scale (ISO 4630:2015)

SIST EN ISO 6271:2016

Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)

SIST EN ISO 3219-2:2021

Rheology - Part 2: General principles of rotational and oscillatory rheometry (ISO 3219-2:2021)

SIST EN ISO 3233-2:2019

Paints and varnishes - Determination of the percentage volume of non-volatile matter - Part 2: Method using t…

BS EN ISO 15236-2:2017

Steel cord conveyor belts. Preferred belt types.