DNV DNV CLASSIFICATION NOTES 72.1 PDF

Introduction

The purpose of the present Classification Notes is to provide the user with general infom1ation and a tool for assessing the acceptance level of deterioration in hull structures.

A ship's original scantlings are normally based on minimum requirements according to the Rules for Classification of Ships applicable at the time of construction but may also include additions due to the initial owner's requirements or special building practices. However, there has been an extensive development in ship design and optimization of scant lings during the last 20-30 years, and this development has in general contributed to reduced corrosion margins. Provision of a good corrosion protection system is, therefore, now more important than ever. As not all designs or circumstances can be covered, the instructions herein should be used with particular caution. Acceptance of repair extent and method must he given by the Society.