ISO 24829:2026

International
Standard
ISO 24829
First edition
Plastics — Polyether polyols and
2026-06
polymer polyols — Determination
of aldehydes and ketones
Plastiques — Polyols de polyéther et polyols de polymère —
Détermination des aldéhydes et des cétones
Reference number
© ISO 2026
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 Principle . 1
5 Reagents and materials . 2
6 Apparatus . 2
7 Procedure . 4
7.1 Preparation of calibration solutions .4
7.2 Preparation of sample .4
7.3 Preparation of calibration curve .4
7.4 Analysis of sample .5
8 Calculation of results . 6
9 Precision . 6
9.1 Repeatability .6
9.2 Recovery .6
10 Performance criteria and quality assurance . 7
10.1 HPLC system performance .7
10.2 Sample loss .7
11 Test report . 7
Bibliography . 8

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 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.
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
Polyether polyols and polymer polyols are the main raw materials of polyurethane, which are widely used
in fields such as sofas, mattresses, car seats and headrests, adhesives, etc. In recent years, environmental
policies have become increasingly strict, with the rapid development of the automobile industry, the demand
of high-quality polyether and polymer polyols will increase greatly.
Automotive OEMs have limited requirements for formaldehyde, acetaldehyde and acrolein in the whole
vehicle and interior parts and materials. Therefore, the manufacturers of vehicle interior require the test
report of aldehydes and ketones content (generally including formaldehyde, acetaldehyde and acrolein)
in polyether polyols. In order to meet the high requirements of environmental policies and the needs of
sustainable development of the industry, it is necessary to establish a method for the determination of
aldehydes and ketones content in polyether polyols and polymer polyols.

v
International Standard ISO 24829:2026(en)
Plastics — Polyether polyols and polymer polyols —
Determination of aldehydes and ketones
1 Scope
This document specifies the determination of aldehydes and ketones content in polyether polyols and
polymer polyols by high performance liquid chromatography (HPLC).
This document is applicable to the determination of formaldehyde (HCHO), acetaldehyde (CH CHO), acrolein
(CH =CHCHO) and acetone (CH COCH ) in polyether polyols and polymer polyols.
2 3 3
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 648, Laboratory glassware — Single-volume pipettes
ISO 1042, Laboratory glassware — One-mark volumetric flasks
ISO 16000-3, Indoor air — Part 3: Determination of formaldehyde and other carbonyl compounds in indoor and
test chamber air — Active sampling method
3 Terms and definitions
For the purpose 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
derivatization
quantitative conversion of target compounds that are difficult to detect in the sample in
...