ISO 7784-1:2023 PDF

Name: ISO 7784-1:2023 — Paints and varnishes — Determination of resistance to abrasion — Part 1: Method with abrasive-paper covered wheels and rotating test specimen
SKU: ISO 7784-1:2023
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Paints and varnishes — Determination of resistance to abrasion — Part 1: Method with abrasive-paper covered wheels and rotating test specimen

Название (английский):

ISO 7784-1:2023

Paints and varnishes — Determination of resistance to abrasion — Part 1: Method with abrasive-paper covered wheels and rotating test specimen

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 3 февраля 2023 г.
Издание:: ISO IS 7784 edition 3 version 1
ICS:: 87.040

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Описание (английский):

This document specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive-paper covered wheels affect the coating of the rotating test specimen.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 7784-1:2023 - "Paints and varnishes - Determination of resistance to abrasion - Part 1" specifies a laboratory test method to measure the abrasion resistance of coatings using two loaded, freely rotatable abrasive-paper covered wheels acting on a rotating test specimen. The method quantifies coating wear by measuring the mass loss after a defined number of cycles and is one part of the ISO 7784 series for abrasive-wheel abrasion testing.

Key topics and technical requirements

Test principle: Two abrasive-paper covered rubber wheels press against a rotating specimen with an eccentric arrangement, producing a ring-shaped wear zone; mass loss is measured after testing.

Apparatus: Turntable abrasion tester with two pivoting arms, ball-bearing mandrels, and a suction device for dust removal. Key parameters:

Turntable speed: 60 ± 2 min⁻¹
Offset between wheel axis and specimen axis: 19.05 ± 0.3 mm
Suction distance from specimen: (3 ± 1) mm
Balance accuracy: 0.1 mg

Abrasive wheels:

Rubber wheel dimensions: diameter 50.5 ± 0.5 mm, thickness 12.7 ± 0.2 mm, axial bore 16.0 ± 0.1 mm
Abrasive paper: self-adhesive strips 12.7 ± 0.2 mm wide (min. length 160 mm; 173 mm if cut at 45°). Grain sizes per FEPA 43-1 / 43-2.
Rubber hardness and abrasive grain selection are agreed between parties.

Test loads: Apparatus provides a minimum load (~2.5 N per arm) and additional weights allow ~4.9 N and 9.8 N per arm. Agreed test load must be specified.

Specimens and conditioning:

Test panels: plane specimens ≥ 100 × 100 mm, prepared per ISO 1514.
Film thickness: measured per ISO 2808.
Conditioning: 23 ± 2 °C, 50 ± 5 % RH for at least 16 h (ISO 3270).

Procedure and reporting:

Replace abrasive paper for each single determination.
Perform triplicate determinations on separate specimens.
Report mass loss, test parameters (abrasive type, load, cycles, environmental conditions).

Applications and users

Practical for coating manufacturers, quality control labs, R&D teams, and third‑party testing facilities evaluating coating durability, comparative product performance, or formulation changes.

Useful across industries: automotive, industrial protective coatings, flooring, marine, and consumer goods where abrasion resistance is critical.

Helps specify materials, validate claims, support product development, and ensure compliance with contract or procurement requirements.

Related standards

ISO 7784 series (other parts): methods with different abrasive wheels/movements (e.g., ISO 7784-2, ISO 7784-3)

Normative references: ISO 1514, ISO 2808, ISO 3270, ISO 4618, ISO 48-4 / ISO 48-5, FEPA Standards 43-1 / 43-2

Keywords: ISO 7784-1:2023, resistance to abrasion, paints and varnishes, abrasive-paper covered wheels, rotating test specimen, turntable abrasion tester, abrasion testing, coating durability.

ISO 7784-1:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

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