ISO 16145-4:2013

INTERNATIONAL ISO
STANDARD 16145-4
First edition
2013-02-01
Ships and marine technology —
Protective coatings and inspection
method —
Part 4:
Automated measuring method for the
total amount of water-soluble salts
Navires et technologie maritime — Revêtements de protection et
méthode d’inspection —
Partie 4: Méthode de mesure automatisée de la quantité totale de sels
solubles dans l’eau
Reference number
©
ISO 2013
© ISO 2013
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ii © ISO 2013 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle of measurement . 2
5 General requirements . 2
5.1 Standard solutions . 2
5.2 Composition of detector . 2
5.3 Conductivity meter . 2
5.4 Water . 2
6 Measurement procedure . 2
6.1 General . 2
6.2 Blank test . 3
6.3 General requirements of extraction of salts from the steel surface . 3
6.4 Conductivity measurement . 3
6.5 Cleaning of the detector . 3
7 Expression of results . 3
7.1 Measurement with direct reading from instrument . 3
7.2 Calculation results . . 3
Bibliography . 5
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 16145-4 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 8, Ship design.
ISO 16145 consists of the following parts, under the general title Ships and marine technology — Protective
coatings and inspection method:
— Part 1: Dedicated sea water ballast tanks
— Part 2: Void spaces of bulk carriers and oil tankers
— Part 3: Cargo oil tanks of crude oil tankers
— Part 4: Automated measuring method for the total amount of water-soluble salts
The following part is under preparation:
— Part 5: Assessment and calculating method for damaged coating areas of ballast tanks
iv © ISO 2013 – All rights reserved

Introduction
The ISO 16145 series addresses qualified coating and inspection works in accordance with the
requirement of IMO PSPC.
Technical Committee ISO/TC 8, Ships and marine technology, SC 8, Ship design, has decided to standardize
a coating and inspection method for the IMO PSPC series.
Coating quality itself depends largely on the surface preparation and coating application. Therefore,
the right application of surface preparation and coating in accordance with the coating manufacturer’s
recommendations, including inspections at each step, are of vital importance.
This part of ISO 16145 is intended to serve as a standard for ship owners, shipyards, coating manufacturers,
coating inspectors and coating applicators in applying IMO PSPC in the new building stage.
...