ISO 19403-1-2022 PDF

Full title and description

Paints and varnishes — Wettability — Part 1: Vocabulary and general principles (ISO 19403-1:2022). This part of the ISO 19403 series defines general terms and definitions used for wettability of coatings and substrates and describes general principles (informative Annex A).

Abstract

Specifies vocabulary and general principles for wettability measurements and related terminology used in the characterization of substrates, coatings and coating materials. It is intended for use together with ISO 4618 (vocabulary for paints and varnishes).

General information

• Status: Published (International Standard).
• Publication date: 09 June 2022.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 87.040 (Paints and varnishes); 01.040.87 (Paint and colour industries — vocabularies).
• Edition / version: Edition 2 (2022).
• Number of pages: 11 (ISO edition).

Technical committee: ISO/TC 35/SC 9 (general test methods for paints and varnishes).

Scope

Defines general terms and definitions related to wettability (e.g., contact angle terminology, surface energy concepts) and sets out high-level principles and considerations for measuring and reporting wettability-related properties of liquids and solid surfaces. It is intended to harmonize vocabulary across the ISO 19403 series and to be used in conjunction with general paints-and-varnishes vocabulary standards such as ISO 4618.

Key topics and requirements

• Standardized vocabulary for wettability and related phenomena (contact angle, advancing/receding angles, roll-off, wetting, dewetting).
• Definitions of surface energy concepts (surface free energy, polar and dispersive contributions) used across the series.
• General principles and informative guidance on measurement conditions and reporting (refer to the specific test-method parts for detailed procedures).
• Cross-reference requirement: use of ISO 4618 terminology for coating-related terms.
• Intended harmonization with the other parts of ISO 19403 that specify specific measurement methods (contact-angle methods, pendant-drop, interfacial-tension methods, dynamic measurements, roll-off/tilt-stage methods).

Typical use and users

Used by paint and coating manufacturers, surface-treatment laboratories, quality-control and R&D teams, instrument manufacturers (tensiometers/contact-angle goniometers), and researchers working on adhesion, surface modification, wetting behavior, and formulation of liquid coatings. Typical applications include method harmonization, specification of test-report terminology, and baseline vocabulary for contract and regulatory documents.

Related standards

ISO 19403-1 is part of the ISO 19403 series (wettability). Other parts of the series specify measurement methods and calculations (for example, surface-tension by pendant-drop and methods to determine polar/dispersive fractions and dynamic contact-angle methods). Several of the method parts have been revised recently (examples: ISO 19403‑3:2024, ISO 19403‑4:2024, ISO 19403‑6:2024). ISO 4618 (Paints and varnishes — Vocabulary) is the general vocabulary standard recommended for cross-reference.

Keywords

wettability; contact angle; surface free energy; surface tension; advancing contact angle; receding contact angle; roll-off angle; paints and varnishes vocabulary; ISO 19403; ISO 4618.

FAQ

Q: What is this standard?

A: ISO 19403-1:2022 is the vocabulary and general-principles part of the ISO 19403 series on wettability for paints and varnishes; it defines terms and gives informative guidance used by the measurement-method parts of the series.

Q: What does it cover?

A: It covers definitions and general principles for wettability-related concepts (contact angles, surface energy concepts, wetting/dewetting) and provides the common vocabulary that the method-specific parts (e.g., contact-angle measurements, pendant-drop surface-tension, dynamic measurements) rely on.

Q: Who typically uses it?

A: Coating manufacturers, test laboratories, instrument vendors, R&D and quality teams, and standards writers—anyone who needs a consistent vocabulary for wetting and surface-energy measurements in coatings contexts.

Q: Is it current or superseded?

A: ISO 19403-1:2022 (Edition 2, published 09 June 2022) is the current published edition and replaces ISO 19403-1:2017. Users should cite the 2022 edition for current terminology.

Q: Is it part of a series?

A: Yes — ISO 19403 is a multipart series on wettability for paints and varnishes (parts include measurement-method documents such as ISO 19403‑2 through ISO 19403‑7). Several of the method parts have been updated recently (editions published in 2024 for some parts).

Q: What are the key keywords?

A: Wettability, contact angle, surface free energy, surface tension, advancing/receding angle, roll-off, paints and varnishes vocabulary (ISO 4618).