EN ISO 16784-2:2008

Corrosion of metals and alloys - Corrosion and fouling in industrial cooling water systems - Part 2: Evaluation of the performance of cooling water treatment programmes using a pilot-scale test rig (ISO 16784-2:2006)

ISO 16784-2:2006 applies to corrosion and fouling in industrial cooling water systems
ISO 16784-2:2006 describes a method for preliminary evaluation of the performance of treatment programmes for open recirculating cooling water systems. It is based primarily on laboratory testing but the heat exchanger testing facility can also be used for on-site evaluation. ISO 16784-2:2006 does not include heat exchangers with cooling water on the shell-side (i.e. external to the tubes).

Korrosion von Metallen und Legierungen - Korrosion und Fouling in industriellen Kühlwassersystemen - Teil 2: Bewertung der Leistung von Kühlwasser-Behandlungsprogrammen unter Anwendung eines Modell-Prüfstands (ISO 16784-2:2006)

Dieser Teil von ISO 16784 gilt für Korrosion und Fouling in industriellen Kühlwassersystemen.
Dieser Teil von ISO 16784 beschreibt ein Verfahren zu einer Vorbewertung der Leistung von Behandlungs¬programmen für offene Kühlwasserrezirkulationssysteme. Das Verfahren basiert primär auf Laborprüfungen, der Prüfstand, der einen Wärmetauscher simuliert, kann aber auch für eine Bewertung vor Ort (am Standort der Anlage) verwendet werden. In diesem Teil von ISO 16784 werden keine Wärmetauscher mit mantel¬seitigem Kühlwasser (d. h. Kühlwasser außerhalb der Rohre) erfasst.

Corrosion des métaux et alliages - Corrosion et entartrage des circuits de refroidissement à eau industriels - Partie 2: Évaluation des performances des programmes de traitement d'eau de refroidissement sur banc d'essai pilote (ISO 16784-2:2006)

L'ISO 16784-2:2006 s'applique à la corrosion et à l'entartrage des circuits de refroidissement à eau industriels
L'ISO 16784-2:2006 décrit une méthode d'évaluation préalable des performances des programmes de traitement destinés aux circuits de refroidissement à eau à recirculation ouverts. Elle repose principalement sur des essais en laboratoire mais l'installation d'essai d'échangeur thermique peut également servir à une évaluation sur site. L'ISO 16784-2:2006 ne traite pas des échangeurs thermiques dans lesquels l'eau est côté virole (c'est-à-dire externe aux tubes).

Korozija kovin in zlitin - Korozija in obraščanje v industrijskih vodnih hladilnih sistemih - 2. del: Vrednotenje učinkovitosti programov obdelovanja s hladilno tekočino z uporabo opreme za preskuševališča pilotne serije (ISO 16784-2:2006)

General Information

• Status: Withdrawn
• Publication Date: 22-Apr-2008
• Withdrawal Date: 10-Dec-2024
• ICS: 77.060 - Corrosion of metals
• Technical Committee: CEN/TC 262 - Metallic and other inorganic coatings
• Drafting Committee: CEN/TC 262 - Metallic and other inorganic coatings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 23-Apr-2008
• Completion Date: 23-Apr-2008
• Ref Project: SIST EN ISO 16784-2:2008 - Corrosion of metals and alloys - Corrosion and fouling in industrial cooling water systems - Part 2: Evaluation of the performance of cooling water treatment programmes using a pilot-scale test rig (ISO 16784-2:2006)

Relations

• Replaced By: EN ISO 16784-2:2024 - Corrosion of metals and alloys - Corrosion and fouling in industrial cooling water systems - Part 2: Evaluation of the performance of cooling water treatment programmes using a pilot-scale test rig (ISO 16784-2:2024)
• Effective Date: 23-Jun-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2008
.RUR]LMDNRYLQLQ]OLWLQ.RUR]LMDLQREUDãþDQMHYLQGXVWULMVNLKYRGQLKKODGLOQLK
VLVWHPLKGHO9UHGQRWHQMHXþLQNRYLWRVWLSURJUDPRYREGHORYDQMDVKODGLOQR
WHNRþLQR]XSRUDERRSUHPH]DSUHVNXãHYDOLãþDSLORWQHVHULMH,62
Corrosion of metals and alloys - Corrosion and fouling in industrial cooling water systems
- Part 2: Evaluation of the performance of cooling water treatment programmes using a
pilot-scale test rig (ISO 16784-2:2006)
Corrosion des métaux et alliages - Corrosion et entartrage des circuits de
refroidissement a eau industriels - Partie 2: Évaluation des performances des
programmes de traitement d'eau de refroidissement sur banc d'essai pilote (ISO 16784-
2:2006)
Ta slovenski standard je istoveten z: EN ISO 16784-2:2008
ICS:
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 16784-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 77.060
English Version
Corrosion of metals and alloys - Corrosion and fouling in
industrial cooling water systems - Part 2: Evaluation of the
performance of cooling water treatment programmes using a
pilot-scale test rig (ISO 16784-2:2006)
Corrosion des métaux et alliages - Corrosion et entartrage Korrosion von Metallen und Legierungen - Korrosion und
des circuits de refroidissement à eau industriels - Partie 2: Fouling in industriellen Kühlwassersystemen - Teil 2:
Évaluation des performances des programmes de Bewertung der Leistung von Kühlwasser-
traitement d'eau de refroidissement sur banc d'essai pilote Behandlungsprogrammen unter Anwendung eines Modell-
(ISO 16784-2:2006) Prüfstands (ISO 16784-2:2006)
This European Standard was approved by CEN on 21 March 2008.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16784-2:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
The text of ISO 16784-2:2006 has been prepared by Technical Committee ISO/TC 156 “Corrosion of metals
and alloys” of the International Organization for Standardization (ISO) and has been taken over as EN ISO
16784-2:2008 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of
which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at
the latest by October 2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 16784-2:2006 has been approved by CEN as a EN ISO 16784-2:2008 without any
modification.
INTERNATIONAL ISO
STANDARD 16784-2
First edition
2006-01-15
Corrosion of metals and alloys —
Corrosion and fouling in industrial
cooling water systems —
Part 2:
Evaluation of the performance of cooling
water treatment programmes using a
pilot-scale test rig
Corrosion des métaux et alliages — Corrosion et entartrage des circuits
de refroidissement à eau industriels —
Partie 2: Évaluation des performances des programmes de traitement
d'eau de refroidissement sur banc d'essai pilote

Reference number
ISO 16784-2:2006(E)
©
ISO 2006
ISO 16784-2:2006(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2006
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2006 – All rights reserved

ISO 16784-2:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle. 3
5 Reagents and materials . 3
5.1 Water characteristics. 4
5.2 Preparation of synthetic test waters using mother solutions. 4
6 Apparatus . 5
6.1 Temperature measurement. 5
6.2 Circulation-rate monitor. 5
6.3 Make-up, evaporation and blow-down measurement. 5
6.4 Cooling tower. 5
7 Test method. 6
7.1 Procedure . 6
7.1.1 Cleaning of the test assembly. 6
7.1.2 Test tube preparation and pre-treatment . 6
7.1.3 System water content. 6
7.1.4 Procedure to fill the cooling water system . 6
7.1.5 Heating the test tubes . 7
7.1.6 Flow rate . 7
7.1.7 Blow-down and half-life. 8
7.1.8 Biocide treatment. 8
7.1.9 Make-up water for cooling-tower use . 8
7.2 Determination of analytical and control parameters. 8
7.3 Test data reporting . 9
7.4 Test termination. 9
8 Assessment of results. 9
8.1 Recording of cooling water quality. 9
8.2 Treatment of the test tubes. 9
8.3 Assessment of results on deposition and fouling . 9
8.4 Assessment of results on corrosion . 10
9 Test report . 11
Annex A (informative) Test data sheet on the performance of cooling water treatment
programmes . 12
Annex B (informative) Further information on some methods of measurement and test. 15
Bibliography . 19

ISO 16784-2:2006(E)
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 16784-2 was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys.
ISO 16784 consists of the following parts, under the general title Corrosion of metals and alloys — Corrosion
and fouling in industrial cooling water systems:
— Part 1: Guidelines for conducting pilot-scale evaluation of corrosion and fouling control additives for open
recirculating cooling water systems
— Part 2: Evaluation of the performance of cooling water treatment programmes using a pilot-scale test rig
iv © ISO 2006 – All rights reserved

ISO 16784-2:2006(E)
Introduction
Due to more stringent environmental requirements and escalating costs of water, there is an industria
...