1.1 This International Standard specifies the performance requirements for the protection, by protective paint systems, of new offshore and related structures exposed to the offshore atmosphere, as well as those immersed in sea or brackish water. Such structures are exposed to environments of corrosivity category C5-M and immersion category Im2 as defined in ISO 12944-2:1998, with special stresses as given in 4.3 and Annex B of ISO 12944-2:1998. It can also be used for other structures, provided that the selected paints or protective paint systems comply with this International Standard. Only new work and any repairs necessary before start-up are included.
This International Standard places emphasis on high-durability paint systems, with the aim of minimizing maintenance, and hence reducing safety considerations and environmental impact.
1.2 This International Standard includes the following:
-- the test methods to be used to determine the composition of the separate components of the protective paint system;
-- the laboratory performance test methods for the assessment of the likely durability of the protective paint system;
-- the criteria to be used to evaluate the results of performance tests.
The fields of application are specified in Clause 4. For reference purposes, some typical examples of protective paint systems which have been used successfully offshore are included in Table 3.