Part B - Verifications and approval requirements 
85 
[Doc. No. 541] Corrosion protection - verification of the proper implementation (application) 
and the processing quality demanded 
Verifications can be made on the basis of acceptance tests according to DIN 
EN ISO 12944-8, incl. the Annex hereto (form), or according to the corres 
ponding Additional Technical Terms of Contract 
[Doc. No. 542] Verification report of the appointed inspector with respect to Doc. No. 541 on 
the basis of the verification reports of the approval holder according to DIN 
10204 
[Doc. No. 543] As-built report 
[Doc. No. 544] Inspection report pertaining to Doc. No. 543 
[Doc. No. 545] Project certificate 
5.5 Operation 
5.5.1 Preliminary remarks 
The requirements of the operating phase are described in chapter B1.3.5 and chapter 
B2.5.1. 
For offshore stations, the position of the parts to be inspected and their different qualities (e. g. 
design safety factors) mean the inspections have different inspection intervals. On the basis of 
the test and inspection results and after a suitable operating period and number of inspec 
tions, these inspection intervals can be adjusted by applying for a deviation. This does not 
apply to intervals which are subject to statutory provisions or ordinances. 
The following areas shall be included according to the intervals of their periodic inspection. 
• All load-bearing structural elements of the offshore station which are crucial for the stability 
against collapse 
• Other supporting elements which are crucial for the stability against collapse (e. g. structural 
bolts) 
• The seabed composition 
• Marine growth and 
• Corrosion protection (coatings and anodes). 
Which parts of the support structure must be inspected in each case depends on the type of 
structure. A distinction shall be made here between concrete and steel structures, for exam 
ple. For the test and inspection plan, only the parts of the structure which ensure stability 
against collapse shall be taken into account. 
5.5.2 Technical codes of practice 
The technical codes of practice are listed in chapter B2.5.2. 
5.5.3 Requirements and necessary verifications 
The requirements and necessary verifications are regulated in chapter B1.3.5 and chapter 
B2.5.3.