DNV DNV-CP-0254 [ Active ]

Scope and application

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

— Anchor chain cables, and/or

— Anchor chain accessories,

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.

Note:

Manufacture of chain cables and accessories for offshore mooring is not covered by this programme, but shall follow the respective approval programme for offshore mooring chain cables and accessories.

The product(s) used for approval testing (see Sec.3) will place limitations on the range of approval. The approval will be limited to:

— grade i.e. NV K1, NV K2 and NV K3

— chain type i.e. stud link and studless chain

— product category:

— anchor chain cables

— cast chain cable accessories

— forged chain cable accessories

— material grade (i.e. material specification)

— product category

— chain type or accessory type

— manufacturing method

— maximum diameter/dimension.

Furthermore, for the approval scope the following limitations apply:

— approval for chain does not cover accessories or vice versa

— approval for stud link chain does not cover studless chain or vice versa

— approval for a higher grade, e.g. NV K3, may cover a lower grade, e.g. NV K2, provided that the same material specification and manufacturing processes and delivery conditions are used in production as were used for the approval testing. Grade(s) approved on this basis will be included in the approval certificate.

Manufacturer’s own heat treatment facilities shall be evaluated and approved by the Society either under this approval programme, or as an approved "heat-treatment workshop" through the separate approval programme DNV-CP-0351.

In case relevant manufacturing steps are performed by a sub supplier, the sub supplier shall be approved by the Society where relevant.

In case starting material i.e. ingots, blooms, billets, bars, forgings or castings are delivered from other manufacturers, it shall be made at works approved by the Society.