ISO 19403-7:2017 PDF

Name: ISO 19403-7:2017 — Paints and varnishes — Wettability — Part 7: Measurement of the contact angle on a tilt stage (roll-off angle)
SKU: ISO 19403-7:2017
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Paints and varnishes — Wettability — Part 7: Measurement of the contact angle on a tilt stage (roll-off angle)

Название (английский):

ISO 19403-7:2017

Paints and varnishes — Wettability — Part 7: Measurement of the contact angle on a tilt stage (roll-off angle)

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 28 июня 2017 г.
Издание:: ISO IS 19403 edition 1 version 1
ICS:: 01.040.87

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Описание (английский):

ISO 19403-7:2017 specifies a method for the dynamic measurement of the roll-off angle of a liquid drop on a solid surface. From the dynamic measurement, the advancing and receding angles of the drop rolling off can also be determined. The roll-off angle plays a role when evaluating, for example, easy-to-clean or anti-adherent surfaces.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 19403-7:2017 - Paints and varnishes - Wettability - Part 7 specifies a standardized, dynamic method to measure the roll-off angle (tilt-stage contact angle) of a liquid drop on a solid surface. The method records the inclination at which a drop begins to roll off and derives the advancing and receding contact angles during motion. This measurement is widely used to evaluate easy‑to‑clean, anti‑adherent and self‑cleaning coatings and surfaces.

Key topics and technical requirements

Principle: A droplet is placed on the test surface; the sample is tilted at a constant speed until the drop rolls. The time‑resolved left and right three‑phase points produce advancing and receding angles and the roll‑off angle.

Apparatus: A contact angle measuring system with a tilt stage (camera/image capture preferred) and a precision dosing unit for microlitre drops.

Test liquids: Suggested liquids include water, di‑iodomethane, ethylene glycol, glycerol, hexadecane (see standard for full table). Water for tests should have surface tension ≥ 71.5 mN/m.

Specimens & sampling: Representative, uncontaminated specimens; recommended minimum size of 10 cm × 10 cm. See Annex A for sampling/treatment guidance.

Test conditions & conditioning: Standard atmosphere at (23 ± 2) °C and (50 ± 5) % RH. Panels conditioned for a minimum period at these conditions prior to testing.

Measurement specifics: Position the dosing needle ~3–6 mm above the surface; align image baseline through three‑phase points; tip the specimen at constant speed. Roll‑off is defined when both three‑phase points move a specified distance (Δ ≥ 1 mm).

Data & reporting: From dynamic measurements obtain roll‑off angle plus advancing and receding angles. The standard includes precision, influencing factors (Annex B), and required test‑report content.

Applications

Evaluating easy‑to‑clean and anti‑adhesive coatings (paints, varnishes, protective layers).

Quality control for surface treatments, hydrophobic or oleophobic finishes, and functional coatings (self‑cleaning, anti‑soiling).

R&D for formulators optimizing surface energy, roughness and chemical homogeneity to control droplet mobility.

Surface science research where dynamic wetting behaviour (hysteresis between advancing/receding angles) matters.

Related standards

ISO 19403‑1 (terminology and general principles)

ISO 19403‑2 / ISO 19403‑3 (other wettability/contact angle methods)

ISO 4618 (paints and varnishes - terms and definitions)

Using ISO 19403-7:2017 ensures consistent, reproducible roll‑off angle testing for product development, certification and comparative performance assessment of coatings and surfaces.

ISO 19403-7:2017 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications

Who should use this standard

Related standards

Технические детали

SIST EN ISO 19403-1:2022

Paints and varnishes - Wettability - Part 1: Vocabulary and general principles (ISO 19403-1:2022)

SIST EN ISO 19403-2:2025

Paints and varnishes - Wettability - Part 2: Determination of the surface free energy of solid surfaces by me…

BS EN ISO 19403-3:2024

Paints and varnishes. Wettability. Determination of the surface tension of liquids using the pendant drop met…

SIST EN ISO 4618:2023

Paints and varnishes - Vocabulary (ISO 4618:2023)