DNV DNV CLASSIFICATION NOTES 33.1 PDF

General

This Classification Note describes the quality levels in regard to coating systems and their applicability.in cargo tanks, holds and spaces. The Classification Note is, in general, referred to in the rules, when applicable.

The philosophy of the rules, applied in this Classification Note, is briefly described below:

The rules for main class 1A1 reflect regulations contained in the International Convention for Safety of Life at Sea (SOLAS) and in the guidelines issued by the International Maritime Organisation (IMO) and the International Association of Classification Societies (IACS). In 1999 this included:

- Ballast water tanks shall in general be coated.

- Coating specifications for seawater ballast tanks in oil tankers and bulk carriers, constructed on or after I July 1998, are subject to approval. The requirements are based on the June 1996 amendments of SOLAS Reg. IJ- 1/3-2 Corrosion prevention of seawater ballast tanks, IMO Res. A.798(19) and IACS Unified Interpretation (UI) SC 122. The rules define the minimum content of a specification describing the corrosion protection system for the ballast tanks.

- Cargo holds of bulk carriers shall be coated.

This Classification Note supports and further elaborates the rule requirements related to additional class notations COAT-1 and COAT-2. The code for the application of the different coating systems is given in the rules for the additional notations. The Classification Note is intended to be a supplement to those rules.