ISO 19699-1:2017

INTERNATIONAL ISO
STANDARD 19699-1
First edition
2017-08
Superabsorbent polymer — Sodium
polyacrylate resin for absorbing
blood —
Part 1:
Test methods
Résines super-absorbantes — Polyacrylate de sodium pour
l’absorption du sang —
Partie 1: Méthodes d’essai
Reference number
ISO 19699-1:2017(E)
©
ISO 2017

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ISO 19699-1:2017(E)

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ii © ISO 2017 – All rights reserved

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ISO 19699-1:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test methods . 2
4.1 General . 2
4.2 Determination of amount of residual monomers . 2
4.3 Determination of volatile content . 3
4.4 Determination of pH . 3
4.5 Determination of particle size distribution . . 3
4.6 Determination of bulk density. 3
4.7 Determination of whiteness . 3
4.8 Determination of simulated blood absorption capacity . 3
4.8.1 General principle . 3
4.8.2 Reagents . 3
4.8.3 Apparatus . 3
4.8.4 Sampling. 3
4.8.5 Procedure . 4
4.8.6 Calculation and expression of results . 4
4.9 Determination of simulated blood absorption rate . 5
4.9.1 General principle . 5
4.9.2 Reagents . 5
4.9.3 Apparatus . 5
4.9.4 Sampling. 5
4.9.5 Procedure . 5
4.9.6 Calculation . 6
Annex A (normative) Preparation of simulated blood . 7
Annex B (informative) Comparison of human blood and simulated blood absorption
capacity of SAP . 9
Bibliography .10
© ISO 2017 – All rights reserved iii

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ISO 19699-1:2017(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.
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 on 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 the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11,
Products.
A list of all parts in the ISO 19699 series can be found on the ISO website.
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ISO 19699-1:2017(E)

Introduction
The test methods described in this document have been practically used by relevant production
enterprises for several years and have proven to be reliable with respect to common criteria of quality
of test methods (validity, repeatability, etc.). They are applicable to testing superabsorbent polymer of
sodium polyacrylate used in hygiene products (such as sanitary towels and pads) and medical products
(such as tourniquets and surgery coats).
The International Organization for Standardization (ISO) draws attention to the fact that it is claimed
that compliance with this document may involve the use of a patent concerning test methods of
simulated blood absorption capacity and simulated blood absorption rate given in 4.8 and 4.9.
ISO takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured ISO that he/she is willing to negotiate licences under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In
this respect, the statement of the holder of this patent right is registered with ISO. Information may be
obtained from:
Jinan Haoyue Resin Co., Ltd
Bucun District, Zhangqiu City, Shandong Province
China
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those identified above. ISO shall not be held responsible for identifying any or
all such patent rights.
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INTERNATIONAL STANDARD ISO 19699-1:2017(E)
Superabsorbent polymer — Sodium polyacrylate resin for
absorbing blood —
Part 1:
Test methods
1 Scope
This document specifies the testing methods for the properties of superabsorbent polymer (SAP) of
sodium polyacrylate used in physical hygiene and medical products for absorbing blood. It also gives a
formulation for simulated blood, a kind of viscous liquid, for replacing blood when testing the properties
of the superabsorbent polymer.
The test methods and simulated blood in this document apply to sodium polyacrylate resin, as raw
material, and apply to SAP for the final products used for absorbing blood.
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 758, Liquid chemical products for industrial use — Determination of density at 20 °C
ISO 2470-2, Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 2: Outdoor
daylight conditions (D65 brightness)
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 6353-1, Reagents for chemical analysis — Part 1: General test methods
ISO 6388, Surface active agents — Determination of flow properties using a rotational viscometer
ISO 17190-1, Urine-absorbing aids for incontinence — Test methods for characterizing polymer-based
absorbent materials — Part 1: Determination of pH
ISO 17190-2, Urine-absorbing aids for incontinence — Test methods for characterizing polymer-based
absorbent materials — Part 2: Determination of amount of residual monomers
ISO 17190-3, Urine-absorbing aids for incontinence — Test methods for characterizing polymer-based
absorbent materials — Part 3: Determination of particle size distribution by sieve fractionation
ISO 17190-4, Urine-absorbing aids for incontinence — Test methods for characterizing polymer-based
absorbent materials — Part 4: D
...