ISO 16276-1:2007 outlines procedures for assessing the fracture strength of protective paint coatings on steel via pull-off testing for quality control. The standard defines requirements for test equipment, sampling, and acceptance criteria to ensure adhesion and cohesion strength. Purchase the full standard from the ISO - International Organization for Standardization
If you specify or perform adhesion testing on structural steel coatings without referencing ISO 16276-1 (or an equivalent like NORSOK M-501’s pull-off criteria), you are missing half the story. The coating that passes at 7 MPa with glue failure is a waste of money. The coating that passes at 4 MPa with cohesive failure in the mid-coat might give 15 years of service. pdf iso -16276-1
It applies to:
Essential for high-stress environments like offshore rigs, bridges, and industrial plants. No Type A failure at the steel interface
Field vs. Lab: Unlike some theoretical standards, this is specifically designed for on-site field testing on actual structures like bridges or offshore platforms, rather than just in a controlled laboratory. If you specify or perform adhesion testing on
When steel is prepared for the application of paints or related products, it is critical that the surface cleanliness is up to standard to ensure proper adhesion and corrosion resistance. ISO 16276-1 provides a method for:
Sampling Plans: Defines how many tests are needed based on the size of the inspection area.
