BS 3900-F11:1985

This standard BS 3900-F11:1985 Methods of test for paint. Durability tests on paint films is classified in these ICS categories:

• 87.040 Paints and varnishes

This Part describes a method of test for determining the resistance to cathodic disbonding of a single coating or multi-coat system of paint, varnish or other organic coating applied to metallic substrates when the surface coating covering the metal substrate may contain or develop discontinuities. It is applicable to coatings that are to be applied to land-based structures, such as buried pipelines.

NOTE 1 For coatings that are to be used in marine environments on ships or partially exposed marine structures, the conditions of the test differ from those for coatings to be used in land-based applications. BS 3900-F10 describes a method suitable for assessing coatings applied to marine structures.

NOTE 2 The test result may be influenced not only by the properties of the coating system under test, but also by the nature and preparation of the substrate, the method of application of the coating system and other factors.

NOTE 3 The titles of the publications referred to in this standard are listed on the inside back page.

Describes a procedure, based on British Gas method, for evaluating coatings that are for use with cathodic protection systems on sub-soil structures.