Apply the load smoothly and at a uniform rate (typically at a rate of ≤ 1.0 MPa/s).
ISO 16276-1:2007 (and the updated ISO 16276-1:2025 ) is the international standard for assessing the (adhesion and cohesion) of protective paint coatings on steel structures using pull-off testing . Unlike laboratory-focused standards like ISO 4624, this standard is specifically designed for on-site field assessments. Key Aspects of ISO 16276-1
High adhesion strength directly correlates with the coating's ability to prevent water and corrosive agents from reaching the steel. pdf iso -16276-1
The primary purpose of is to establish uniformity. It ensures that no matter where in the world a structure is being built or inspected, the testing methods and acceptance criteria remain consistent, reproducible, and reliable. Scope and Applications
To perform a test compliant with ISO 16276-1, operators must utilize calibrated equipment and specialized consumables. Apply the load smoothly and at a uniform
While summaries and guides are helpful for understanding the basics, quality assurance and compliance require referencing the exact, unabridged text of the standard.
A small test cylinder (dolly) is glued to the paint surface. Key Aspects of ISO 16276-1 High adhesion strength
ISO 16276-1:2007(en), Corrosion protection of steel structures by protective paint systems — Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating — Part 1: Pull-off testing
A break at the interface between two distinct layers (e.g., between the primer and the steel, or between the primer and the mid-coat).
The internal strength of the coating layer itself.
