DNV DNV-CP-0253 PDF

Scope and application

This programme is applicable for the approval of material manufacturers of:

— Non–ferrous tubes,

as referred in the Society's rules and standards. For a description of general requirements, conditions and procedures related to the approval, please refer to DNV-CP-0346 which shall be applied in combination with this programme.

The product(s) used for approval testing (see Sec.3) will place limitations on the range of approval. The approval will be limited to the manufacture of each grade or, where appropriate, type of material of non– ferrous tubes. Approval may be given for other grades not mentioned here upon request. The requests for approval of other grades shall include a justification (classification requirement such as rule basis or approved drawing etc.) for seeking approval.

The approval is limited to the manufacturing method, maximum/minimum diameter and maximum wall thickness of the tubes subjected to approval testing.

When appropriate testing is carried out and where applicable, a remark will be given on the approval certificate specifying ‘Including automatic non-destructive testing in lieu of hydraulic testing according to relevant standard’.