ISO 17710:2023

ISO/FDIS 17710:2023(E)
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ISO TC 61/SC 12/WG 6
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Date: YYYY-MM-DD2023-03-17
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Plastics — Polyols for use in the production of polyurethanes — Determination of degree of
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unsaturation by microtitration
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WD/CD/DIS/FDIS stage
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Warning for WDs and CDs
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This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard. Style Definition
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Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
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which they are aware and to provide supporting documentation.
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A model manuscript of a draft International Standard (known as “The Rice Model”) is available at
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https://www.iso.org/iso/model_document-rice_model.pdf .
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© ISO #### – All rights reserved

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© ISO 20XX

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ISO /FDIS 17710:2023(E)
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© ISO 2023 Formatted
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of
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this publication may be reproduced or utilized otherwise in any form or by any means, electronic or
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ISO copyright officeCopyright Office
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CP 401 • Ch. de Blandonnet 8
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CH-1214 Vernier, Geneva
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Phone: + 41 22 749 01 11
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Email: copyright@iso.org
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Website: www.iso.orgwww.iso.org
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Published in Switzerland.
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ISO/FDIS 17710:2023(E)
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Contents
Foreword . 7
Introduction . 8
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Application . 2
6 Interferences . 2
7 Reagents . 2
8 Apparatus . 3
9 Sampling . 3
10 Procedure . 3
11 Expression of results . 4
12 Precision and bias . 6
13 Test report . 7
Bibliography . 9
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Application . 2
6 Interferences . 2
7 Reagents . 2
8 Apparatus . 3
9 Sampling . 3
10 Procedure . 3
11 Expression of results . 4
12 Precision and bias . 4
13 Test report . 5 Formatted: Font: 11 pt
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ISO /FDIS 17710:2023(E)
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Bibliography . 7

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ISO/FDIS 17710:2023(E)
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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 documentsdocument should be noted. This document was drafted in accordance
with the editorial rules of the ISO/IEC Directives, Part 2 (see
www.iso.org/directiveswww.iso.org/directives).
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse of (a) patent(s). ISO takes no position concerning the evidence,
validity or applicability of any claimed patent rights. in respect thereof. As of the date of publication of
this document, ISO had not received notice of (a) patent(s) which may be required to implement this
document. However, implementers are cautioned that this may not represent the latest information,
which may be obtained from the patent database available at www.iso.org/patents. 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.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 12,
Thermosetting materials.
This second edition cancels and replaces the first edition (ISO17710:2002), of which it constitutes a
minor revision.
The changes are as follows:
— the title has been changed to plural form to read: "Plastics — Polyols for use in the production of
polyurethanes — Determination of degree of unsaturation by microtitration"
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.htmlwww.iso.org/members.html. Formatted: Font: 11 pt
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© ISO 2023 – All rights reserved 7
© ISO 2023 – All rights reserved vii

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ISO /FDIS 17710:2023(E)
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Introduction
Standards have been published which deal with the measurement of the degree of unsaturation in polyols
used for the production of polyurethane plastics (ASTM D 4671, JIS K 1557, part 6.7). These standards
are based on the reaction of mercuric acetate with the unsaturation present in the molecule. The method
described in this document relies on the same chemistry, but is a microtitration method which uses less
reagent and therefore reduces the disposal problems associated with mercury compounds. It is based
primarily on ASTM D 4671.
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8 © ISO #### – All rights reserved
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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 17710:2023(E)

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Plastics — Polyols for use in the production of polyurethanes —
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Determination of degree of unsaturation by microtitration
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WARNING — Persons using this document should be familiar with normal laboratory practice. This
document does not purport to address all of the safety problems, if any, associated with its use. It is the Formatted
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responsibility of the user to establish appropriate safety and health practices, and to ensure compliance
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with anydetermine applicable national regulatory conditions prior to the application of this
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standarddocument.
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1 Scope
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This document specifies a microtitration method to measure the degree of unsaturation in polyether
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polyols used in the production of polyurethanes. It is based on the reaction of mercuric acetate with
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double bonds in the polyol. It does not apply to compounds in which the unsaturation is conjugated with
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carbonyl, carboxyl or nitrile groups. The product being measured must be essentially dry and free of .
inorganic salts, especially halides.
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2 Normative references
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The following documents are referred to in the text in such a way that some or all of their content .
constitutes requirements of this document. For dated references, only the edition cited applies. For Formatted
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undated references, the latest edition of the referenced document (including any amendments) applies.
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ISO 3696:1987, Water for analytical laboratory use — Specification and test methods
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ISO 4787:1984, Laboratory glassware — Volumetric glassware — Methods for use and testing of capacity .
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ISO 6353--1:1982, Reagents for chemical analysis — Part 1: General test methods
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ISO 6353--2:1983, Reagents for chemical analysis — Part 2: Specifications — First series Formatted
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ISO 6353--3:1987, Reagents for chemical analysis — Part 3: Specifications — Second series
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3 Terms and definitions
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For the purposes of this document, the following terms and definitions apply. .
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ISO and IEC maintain terminology databases for use in standardization at the follow
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FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 17710
ISO/TC 61/SC 12
Plastics — Polyols for use in the
Secretariat: JISC
production of polyurethanes
Voting begins on:
2023-04-03 — Determination of degree of
unsaturation by microtitration
Voting terminates on:
2023-05-29
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 17710:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 17710
ISO/TC 61/SC 12
Plastics — Polyols for use in the
Secretariat: JISC
production of polyurethanes
Voting begins on:
— Determination of degree of
unsaturation by microtitration
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 17710:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 17710:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Application .2
6 Interferences . 2
7 Reagents . 2
8 Apparatus . 3
9 Sampling . 3
10 Procedure .3
11 Expression of results . 4
12 Precision and bias .5
12.1 Precision . . . 5
12.2 Bias . 5
13 Test report . 6
Bibliography . 7
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/FDIS 17710:2023(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 non­governmental, 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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
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 61, Plastics, Subcommittee SC 12,
Thermosetting materials.
This second edition cancels and replaces the first edition (ISO17710:2002), of which it constitutes a
minor revision.
The changes are as follows:
— the title has been changed to plural form to read: "Plastics — Polyols for use in the production of
polyurethanes — Determination of degree of unsaturation by microtitration"
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
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/FDIS 17710:2023(E)
Introduction
Standards have been published which deal with the measurement of the degree of unsaturation in
polyols used for the production of polyurethane plastics (ASTM D 4671, JIS K 1557, part 6.7). These
standards are based on the reaction of mercuric acetate with the unsaturation present in the molecule.
The method described in this document relies on the same chemistry, but is a microtitration method
which uses less reagent and therefore reduces the disposal problems associated with mercury
compounds. It is based primarily on ASTM D 4671.
v
© ISO 2023 – All rights reserved

---------------------- Page: 5 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 17710:2023(E)
Plastics — Polyols for use in the production of
polyurethanes — Determination of degree of unsaturation
by microtitration
WARNING — Persons using this document should be familiar with normal laboratory practice.
This document does not purport to address all of the safety problems, if any, associated with its
use. It is the responsibility of the user to establish appropriate safety and health practices, and
to determine applicable national regulatory conditions prior to the application of this document.
1 Scope
This document specifies a microtitration method to measure the degree of unsaturation in polyether
polyols used in the production of polyurethanes. It is based on the reaction of mercuric acetate with
double bonds in the polyol. It does not apply to compounds in which the unsaturation is conjugated with
carbonyl, carboxyl or nitrile groups.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 4787, Laboratory glassware — Volumetric glassware — Methods for use and testing of capacity
ISO 6353-1, Reagents for chemical analysis — Part 1: General test methods
ISO 6353-2, Reagents for chemical analysis — Part 2: Specifications — First series
ISO 6353-3, Reagents for chemical analysis — Part 3: Specifications — Second series
...