Design and Licensing Services

Oy U-Cont Ltd manufactures tanks in series, so it is not necessary for the inspection body to perform a structural inspection on every tank produced. Instead, the inspection is carried out as a series inspection. This means that every 20th tank is inspected. The inspection body inspects the first tank in the series, after which U-Cont can manufacture 19 tanks. The next 20th tank is then inspected. These series inspections are conducted separately for each standard.
The series inspection certificate includes the details of the inspected tank (volume, dimensions, material, etc.), so the information on the certificate and the project-specific tank information may differ in many respects. The certificate lists the tank numbers covered by the series inspection, i.e., first the number of the inspected tank, followed by the numbers of the tanks included in the series inspection, for example: “Manufacturing and serial numbers: 10201 (10201–10220).”