Dr. Verwey's Tank Cleaning Guide, 10th Edition

Published Date

December 2019

Dr. Verwey's Tank Cleaning Guide, 10th Edition

(Excludes any applicable taxes)

This guide outlines procedures for the cleaning of cargo tanks on chemical and petroleum tankers. It contains a tank cleaning cross table, which provides cleaning guidelines for more than 400 bulk liquid cargoes. Tank cleaning procedures are listed for some 170,000 previous to next cargo combinations.

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The cargoes in this guide have been selected from the products listed in the IBC Code and in the HM (Hydrocarbon Management) 50 Guidelines of the Energy Institute.


• Use of the Cleaning Cross Table

• Cleaning Machines

• Cleaning Additives

• Coating.


• Wall Wash Analysis

• Safety

• Abbreviations


Cleaning from to Cross Table


Cleaning Procedures


Cargo Details

• Physical Properties of Cargoes


Synonym Search Table

The facts and information you find are collected from a global network of cleaning experts and feedback on procedures that was received from many shipping companies.

We invite you to send any information, suggestions or constructive criticisms to enable us to keep this book up to date and to increase its scope.

Please send them to email: [email protected]

Our suggestions are merely a blueprint, although well thought out, and should not overrule better knowledge and experience. Often several different cleaning procedures will lead to the desired knowledge.

Whilst both the advice and information in this book are believed to be true and accurate at the date of publication, ChemServe GmbH cannot accept any legal responsibility for any errors or omissions that may be made.

ChemServe GmbH shall assume no warranty and no liability in context with any use of this publication.

Statutory tank washing requirements according to MARPOL Annex I and Annex II are not included in the cleaning procedures. All applicable pollution prevention steps according to MARPOL must be executed prior to tank cleaning.

If the cargo to be cleaned has a flash point of less than 60°C, the ROB (remaining on board) could create a flammable atmosphere inside the cargo tank. Therefore, before commencing tank cleaning, in accordance with the cleaning procedures in this guide, the cargo tank atmosphere must be either inert (oxygen concentration below 8%), or the cargo vapour concentration must be so low that the LFL is below 10%. The applicable procedures can be found in ISGOTT or CTSG.

Whenever procedures or activities recommended in this guide appear to conflict statutory and industry guidelines such as MARPOL, SOLAS, ISGOTT, CTSG, etc, the statutory and industry guidelines must always take priority.

The cargoes in this guide have been selected from the products listed in the IBC-Code and in the HM (Hydrocarbon Management) 50 Guidelines of the Energy Institute.

Dr. A. Verwey has been part of AGROLABGROUP since 2011.

Started in 1901, Dr. A. Verwey has been acting successfully for more than 100 years as an independent and innovative laboratory, based in the harbour of Rotterdam.

Coming from the edible oils and fats industry and with specialisation in the international trade business and in the process industry, Dr. A. Verwey is now serving customers worldwide within the food and feed sector.

Dr. A. Verwey is accredited/certified according to ISO/IEC 17025 and ISO 14001 and recognised by FOSFA, NOFOTA, GAFTA, GMP+, QS, FEDIOL and VERNOF.

Title: Dr. Verwey's Tank Cleaning Guide, 10th Edition
Number of Volumes: 1
Edition: Tenth
Number of Pages: 504
Product Code: WS1735K
ISBN: ISBN 13: 9783000637216, ISBN 10: 3000637214
Published Date: December 2019
Binding Format: Hardback
Book Height: 300 mm
Book Width: 210 mm
Book Spine: 30 mm
Weight: 2.00 kg
Author: Dr. A. Verwey

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