British Standards Institution

Source:: ISO
Committee:: STI/21 - Paint systems and surface preparation for metallic substrates
Categories:: Paint coating processes
Comment period start date:: 13/03/2025
Comment period end date:: 06/05/2025
Number of comments:: 0

Comment by:

6th May

Scope

This International Standard specifies procedures for detecting the presence of porosity in a protective paint system of any thickness on a steel or other metallic substrate. The procedures given in this International Standard are based on methods using two different types of test equipment, the choice of equipment depending on the dry film thickness. These procedures are only applicable to the testing of electrically non-conductive parts of a paint system.

The test methods specified are mainly intended for use with new coatings, but can also be used for coatings which have been in service for some time. In the latter case, it is important to bear in mind that the coating might have been penetrated by substances in contact with the coating during service.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

10/01/2025

3. Public Comments

Public Comments start date:

13/03/2025

Public Comments end date:

06/05/2025

Learn more about the standards development process

Standards Development

BS EN ISO 29601 ISO 29601 Paints and varnishes. Corrosion protection by protective paint systems. Assessment of porosity in a dry film

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