Corrosion of metals and alloys — Overview of metal corrosion protection when using disinfectants

This document provides an overview of the corrosivity of disinfectants and corrosion protection when using disinfectants, including an overview of test methods that can be used to determine their corrosivity. This document is generic and applicable to organizations of all sizes in all industries, as well as to families and individuals, and it is intended to assist in determining appropriate health and safety measures regarding the use of disinfectants. The resolution of security issues related to the use of disinfectants is outside the scope of this document.

Corrosion des métaux et alliages — Vue d'ensemble de la protection contre la corrosion des métaux lors de l'utilisation de désinfectants

General Information

Status
Published
Publication Date
15-Mar-2022
Current Stage
6060 - International Standard published
Start Date
16-Mar-2022
Due Date
18-Dec-2022
Completion Date
16-Mar-2022
Ref Project

Buy Standard

Technical report
ISO/TR 7655:2022 - Corrosion of metals and alloys — Overview of metal corrosion protection when using disinfectants Released:3/16/2022
English language
42 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


TECHNICAL ISO/TR
REPORT 7655
First edition
2022-03
Corrosion of metals and alloys —
Overview of metal corrosion
protection when using disinfectants
Corrosion des métaux et alliages — Vue d'ensemble de la protection
contre la corrosion des métaux lors de l'utilisation de désinfectants
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Overview . 2
5 Corrosivity and main properties of commonly used disinfectants .2
6 Good practice for metal corrosion protection when using disinfectants .6
6.1 General . 6
6.2 Corrosion hazards . 6
6.3 Corrosion protection measures. 6
Annex A (informative) Overview of test methods to determine the corrosivity of
disinfectants . 9
Annex B (informative) Commonly used disinfectants for disinfection of infectious disease .10
Bibliography .42
iii
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
This document provides information on protection against metal corrosion risks when disinfectants
are used in response to infectious diseases.
Governments, regulatory agencies and other professional organizations around the world have issued
guidelines in response to pandemics, but these contain no specific information on metal corrosion
protection when using disinfectants.
This document provides supplementary information intended to help organizations, families and
individuals, as well as other stakeholders, take more effective actions to prevent users from being
injured and reduce or avoid possible risks of metal corrosion during the use of disinfectants.
v
TECHNICAL REPORT ISO/TR 7655:2022(E)
Corrosion of metals and alloys — Overview of metal
corrosion protection when using disinfectants
1 Scope
This document provides an overview of the corrosivity of disinfectants and corrosion protection
when using disinfectants, including an overview of test methods that can be used to determine their
corrosivity.
This document is generic and applicable to organizations of all sizes in all industries, as well as to
families and individuals, and it is intended to assist in determining appropriate health and safety
measures regarding the use of disinfectants.
The resolution of security issues related to the use of disinfectants is outside the scope of this document.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
organization
company, corporation, firm, enterprise, authority or institution, person or persons or part or
combination thereof, whether incorporated or not, public or private, that has its own functions and
administration
[SOURCE: ISO 30000:2009, 3.10]
3.2
risk
combination of the probability of occurrence of harm and the severity of that harm
[SOURCE: ISO 15188:2001, 3.6]
3.3
disinfectant
agent capable of causing disinfection
[SOURCE: ISO 15190:2020, 3.8]
3.4
corrosivity
ability of an environment to cause corrosion of a metal in a given corrosion system
[SOURCE: ISO 8044:2020, 3.14]
3.5
corrosion protection
modification of a corrosion system so that corrosion damage is reduced
[SOURCE: ISO 8044:2020, 5.1]
3.6
common areas
spaces and amenities provided for the use of more than one person
Note 1 to entry: Canteens, lifts/elevators, stairs, reception areas, meeting rooms, areas of worship, toilets,
gardens, fire escapes, kitchens, fitness facilities, store rooms, laundry facilities.
[SOURCE: ISO/PAS 45005:2020, 3.11]
4 Overview
4.1 Disinfecting is an important process of defending against infectious diseases, which can corrode
metals. When disinfecting, avoid corrosion, injury and, if possible, discomfort to individuals, damage
to the environment that can affect public health and damage to baggage, cargo, containers, vehicles,
articles and mailbags.
4.2 Guidance on disinfection for the prevention of infectious diseases provided by public health
agencies can include information on the corrosivity to metals.
4.3 Professional disinfectant-related institutions can provide detection methods of metal corrosion
caused by various types of disinfectants under different testing or application conditions, and reports
on corrosion tests for commonly used metals for public use or reference.
4.4 Disinfectant manufacturers can test the corrosivity of their products to metals and clearly note
it on their instructions, provide corrosion data of their products to commonly used metals and put
forward protective measures for reference.
4.5 When disinfecting, organizations, families or individuals, use disinfectants according to the
relevant guidance documents and product specifications on metal corrosivity. Corrosion risks cannot
be neglected and effective measures are important to avoid corrosion hazards; disinfection service
providers are commonly required to receive training in the safe and effective use of disinfectants to
avoid corrosion.
5 Corrosivity and main properties of commonly used disinfectants
Commonly used disinfectants can be classified by active ingredients into alcohol disinfectants, halogen
disinfectants, peroxide disinfectants, guanidine disinfectants, phenol disinfectants, quaternary
ammonium disinfectants and other disinfectants; classified by use into object surface disinfectants,
disinfectants for medical items, air disinfectants, hand disinfectants, skin disinfectant, mucous
membrane disinfectants, and disinfectants for infectious focus; classified by the microorganism killing
ability into high-level disinfectants, intermediate-level disinfectants and low-level disinfectants.
Annex B provides an overview of the physical and chemical properties, types, disinfection mechanisms,
application scope and methods of disinfectants commonly used in infectious disease disinfection.
Usually, peroxide disinfectants and halogen disinfectants are highly corrosive to metals in the range
of their disinfection concentration. In general, the corrosivity increases with the strength of oxidation
and acidity.
The corrosivity, active ingredients, main properties, uses, application methods, etc., of commonly used
disinfectants are shown in Table 1.
Table 1 — Corrosivity and main properties of commonly used disinfectants
Active ingredi-
Oxi-
ents of com- Alkalinity Corrosivity to Application
Type diz-abil- Main uses
a b
monly used or acidity metals methods
ity
products
The presence of
small amount of Disinfection of ob-
Immersion
formic acid in for- ject surfaces and
Formaldehyde No Acidic
maldehyde solu- medical devices,
Fumigation
tions can corrode etc.
Aldehyde
metals.
Disinfection of
Immersion
Acid, neutral Corrosive to car-
Glutaraldehyde No medical devices,
or alkaline bon steel
Wiping
etc.
Slightly corrosive
to stainless steel,
Immersion
alloy steel and Disinfection of
chrome-plated object surfaces,
Wiping
Peracetic acid Yes Acidic metal, and heavily medical devices,
Spraying
corrosive to com- air and infectious
mon metals such focuses, etc.
Fumigation
as iron, copper
and aluminium.
Peroxide Disinfection of
object surfaces, Immersion
Hydrogen per- Corrosive to met- medical devices,
Yes Acidic Wiping
oxide als skin and mucosa,
air and infectious Spraying
focuses, etc.
Disinfection of Immersion
Corrosive to met- object surfaces,
Ozone Yes Neutral Wiping
als medical devices,
air and water, etc. Spraying
Strong corrosive
to aluminium, low Disinfection of
Immersion
alloy steel and object surfaces,
Chlorine dioxide Yes Acidic carbon steel, and medical devices, Wiping
moderately cor- air and infectious
Spraying
rosive to stainless focuses, etc.
steel.
Corrosive to cop- Disinfection of
per, aluminium object surfaces, Immersion
Electrolyzed
and carbon steel, medical devices,
oxidizing water Yes Acidic Wiping
and not obviously skin, hands and
(EOW)
corrosive to stain- infectious focus- Spraying
less steel es, etc.
Disinfection of
object surfaces, Immersion
Potassium Corrosive to met- medical devices,
Yes Acidic Wiping
monopersulfate als skin, water and
infectious focus- Spraying
es, etc.
a
Alkalinity or acidity refers to that of commonly used disinfectant products.
b
Metal corrosivity is usually graded as no obvious corrosion, mild corrosion, moderate corrosion and heavy corrosion;
there is no unified corrosion classification standard for disinfectants so far, which will be developed in the future; in the
table, "corrosive to metals" only indicates the existence of metal corrosion, as a warning when using disinfectants; the
specific corrosion classification is related to the standards used in the test, the type of metal materials used, test conditions
and the basis for evaluation.
Table 1 (continued)
Active ingredi-
Oxi-
ents of com- Alkalinity Corrosivity to Applic
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.