ISO 2812-1-2017 PDF

Full title and description

ISO 2812-1:2017 — Paints and varnishes — Determination of resistance to liquids — Part 1: Immersion in liquids other than water. This international standard specifies general methods for determining the resistance of single- or multi-layer coating systems to the effects of liquids (other than water) and to paste-like products implicitly covered by the test liquids described in the standard.

Abstract

ISO 2812-1:2017 provides immersion test procedures that enable laboratories and manufacturers to expose coated specimens to specified liquids, observe and record effects on the coating and, where relevant, assess any damage to the substrate. The standard describes general test arrangements, specimen preparation and evaluation criteria for immersion exposures to liquids other than water.

General information

• Status: Published (confirmed as current following systematic review).
• Publication date: 10 November 2017.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 87.040 (Paints and varnishes).
• Edition / version: Edition 3 (2017).
• Number of pages: 8.

Scope

This part of ISO 2812 establishes general immersion methods for assessing the resistance of coating materials to liquids other than water (including paste-like products implicitly contained in the listed test liquids). It applies to single-layer and multi-layer coating systems and is intended for use in quality control, comparative testing and R&D to determine the effect of specific liquids on coating appearance, adhesion and the state of the substrate following exposure.

Key topics and requirements

• Definition of immersion test arrangements and specimen orientation for exposures to non‑aqueous liquids.
• Requirements for specimen preparation and coating application to produce representative test panels.
• Selection and description of test liquids (liquids other than water, including paste-like substances where applicable).
• Control of exposure conditions (time, temperature and containment) and safe handling of test liquids.
• Evaluation criteria and reporting: visual inspection, rating of blistering, discoloration, softening, loss of adhesion and any substrate attack; recommended reporting elements for repeatability and traceability.
• Guidance to interpret results for quality control, comparative assessments and material selection decisions.

Typical use and users

Used by coatings manufacturers, independent test laboratories, specification writers, quality control personnel, R&D teams and certification bodies to assess how paints and varnishes perform when exposed to oils, solvents, fuels, chemicals and other non‑aqueous liquids. Typical applications include durability screening, formulation development, acceptance testing and failure analysis.

Related standards

ISO 2812 is a multi‑part series. Closely related parts include ISO 2812-2 (water immersion method, revised 2018), ISO 2812-3 (method using an absorbent medium, revised 2019), ISO 2812-4 (spotting/spot-test methods, 2017) and ISO 2812-5 (temperature‑gradient oven method, 2018). These parts together cover a range of liquid‑exposure test methods for coatings.

Keywords

paints and varnishes; resistance to liquids; immersion test; coating durability; test method; non‑aqueous liquids; coating evaluation; ISO 2812; laboratory test.

FAQ

Q: What is this standard?

A: ISO 2812-1:2017 is an international test method standard that specifies immersion procedures to determine how coatings resist exposure to liquids other than water.

Q: What does it cover?

A: It covers general immersion test arrangements, specimen preparation, selection/description of test liquids (excluding water), exposure control and procedures for evaluating and reporting effects on the coating and any substrate damage.

Q: Who typically uses it?

A: Coating manufacturers, independent test labs, quality control and R&D teams, specifiers and certification bodies that need to assess or compare coating performance against non‑aqueous liquids.

Q: Is it current or superseded?

A: ISO 2812-1:2017 is the current (3rd) edition; it was published on 10 November 2017 and was reviewed and confirmed as current in 2023.

Q: Is it part of a series?

A: Yes — ISO 2812 is a multi‑part series. Other parts cover water immersion (Part 2), absorbent‑medium methods (Part 3), spotting methods (Part 4) and temperature‑gradient oven methods (Part 5).

Q: What are the key keywords?

A: Resistance to liquids, immersion test, paints and varnishes, coating durability, non‑aqueous liquids, test method, ISO 2812.