Prevention of Corrosion On Board Ships, 2010 Edition (I877M)

Published Date

April 2010

Prevention of Corrosion On Board Ships, 2010 Edition (I877M)

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This publication is an essential reference for shipyards, shipowners, surveyors, flag Administrations and other interested parties with regards to the application, assessment, survey and repair of protective coatings in ballast tanks and void spaces.


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The IMO Assembly, in the 1990s, requested the Maritime Safety Committee (MSC) to develop requirements for the design, construction, operation, maintenance and survey of bulk carriers and specific precautionary measures with respect to type of cargoes. Consequently, a number of measures were considered, including the development of performance standards for protective coatings.

 

This publication contains the following mandatory and non-mandatory performance standards and guidelines developed as a result of the above considerations:

 

• Guidelines for the selection, application and maintenance of corrosion-prevention systems of dedicated seawater ballast tanks (resolution A.798(19)) These Guidelines were adopted by the 19th IMO Assembly in 1995 and, recognizing the importance of correctly applied and maintained corrosion-prevention systems in dedicated seawater ballast tanks (which are more susceptible to corrosion) for the improvement of ship safety, recommend general criteria for the selection, application and maintenance of corrosion-prevention systems of dedicated seawater ballast tanks of bulk carriers and oil tankers.

 

• Performance standard for protective coatings for dedicated seawater ballast tanks in all types of ships and double-side skin spaces of bulk carriers (resolution MSC.215(82))

This performance standard was adopted by the MSC in 2007 and is mandatory under the SOLAS Convention. It took effect on 1 July 2008 upon entry into force of the associated amendments to SOLAS regulations II-1/3-2 and XII/6. It provides technical requirements for protective coatings in dedicated seawater ballast tanks of all types of ships of not less than 500 gross tonnage and double-side-skin spaces arranged in bulk carriers of 150 m in length and upwards.

 

• Performance standard for protective coatings for void spaces on bulk carriers and oil tankers (resolution MSC.244(83))

This performance standard was adopted by the MSC in 2007 and provides technical requirements for protective coatings for void spaces constructed of steel in bulk carriers and oil tankers.

 

• Guidelines for corrosion protection of permanent means of access arrangements (MSC.1/Circ.1279)

 

• Guidelines for maintenance and repair of protective coatings (MSC.1/Circ.1330)

 

These guidelines were approved by the MSC in 2009 and provide relevant recommendations to assist surveyors, shipowners, shipyards, flag Administrations and other interested parties involved in the survey, assessment and repair of protective coatings in ballast tanks.

Introduction

 

Resolution A.798(19): Guidelines for the selection, application and maintenance of corrosion prevention systems of dedicated seawater ballast tanks

1 General

2 Definitions

3 Coating

3.1 General

3.2 Coating selection

3.3 Surface preparation

3.4 Checking of surface preparation

3.5 Coating application

3.6 Ventilation

3.7 Testing of coating

3.8 Inspection

3.9 Safety precaution

4 Cathodic protection

5 Alternative methods

6 Maintenance

 

Resolution MSC.215(82): Performance standard for protective coatings for dedicated seawater ballast tanks in all types of ships and double-side skin spaces of bulk carriers

1 Purpose

2 Definitions

3 General principles

3.4 Coating Technical File

3.5 Health and safety

4 Coating Standard

4.1 Performance standard

4.2 Standard application

4.3 Special application

4.4 Basic coating requirements

5 Coating system approval

6 Coating inspection requirement

6.1 General

6.2 Inspection items

7 Verification requirements

8 Alternative systems

 

Annex 1: Test procedures for coating qualifications for dedicated seawater ballast tank of all types of ships and double-sided skin spaces of bulk carriers

1 Scope

2 Definitions

3 Testing

 

Appendix 1: Test on simulated ballast tank conditions

1 Test conditions

2 Test results

3 Acceptance criteria

4 Test report

 

Appendix 2: Condensation chamber test

1 Test conditions

2 Test results

3 Acceptance criteria

4 Test report

 

Annex 2: Example of daily log and non-conformity report

Annex 3: Dry film thickness measurements

 

Resolution MSC.244(83): Adoption of performance standard for protective coating for void spaces on bulk carriers and oil tankers

1 Purpose

2 Definitions

3 General principles

3.4 Coating Technical File

3.5 Health and safety

4 Coating Standard

4.1 Performance standard

4.2 Standard application

4.3 Special application

4.4 Basic coating requirements

5 Coating system approval

6 Coating inspection requirement

6.1 General

6.2 Inspection items

7 Verification requirements

8 Alternative systems

 

Annex 1: Test procedures for coating qualifications for void spaces of bulk carriers and oil tankers

1 Scope

2 Definitions

3 Testing

3.1 Test conditions

3.2 Test results

3.3 Acceptance criteria

3.4 Test report

 

Annex 2: Example of daily log and non-conformity report

Annex 3: Dry film thickness measurements

 

Guidelines for corrosion protection of permanent means of access arrangements

1 Permanent means of access in dedicated seawater ballast tanks in all types of ships and double-side skin spaces of bulk carriers

1.1 Requirements for permanent means of access (PMAs) that are part of the structural strength elements

1.2 Guidelines for PMAs that are not part of the structural strength elements

2 Permanent means of access in void spaces

2.1 Guidelines for PMAs that are part of the structural strength elements

2.2 Guidelines for PMAs that are not part of the structural strength elements

 

Guidelines for maintenance and repair of protective coatings

1 General

2 Application and definitions

3 Survey recommendations

4 Coating conditions

4.1 “GOOD”, “FAIR”, “POOR”

4.2 Areas under consideration

4.3 In-service condition monitoring

5 Coating maintenance

5.1 Process considerations for maintenance

5.2 Principles for maintenance

5.3 Recommended maintenance

6 Coating repairs

6.1 Process considerations for repairs

6.2 Principles for repairs

7 Coating Technical File (CTF)

8 References

 

Appendix

Good coating condition

Fair coating condition

Poor coating condition

Title: Prevention of Corrosion On Board Ships, 2010 Edition (I877M)
Edition: 2010
Number of Pages: 243
Product Code: MM1269K
ISBN: ISBN 13: 9789280100358, ISBN 10: 9280100351
Published Date: April 2010
Weight: 0.74 kg
Author: IMO

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