DNV DNVGL-CP-0254 [ Revised ]

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 DNVGL 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:

grade i.e. VL K1, VL K2 and VL 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. VL K3, may cover a lower grade, e.g. VL 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 DNVGL 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.