SIST ISO 4574:2023

Plastics - PVC resins for general use - Determination of hot plasticizer absorption

This document specifies a method for determining the hot plasticizer absorption of PVC polymers intended for general use (designated "G" in ISO 1060-1) by hot mixing in a planetary mixer and measuring the amount of plasticizer absorbed.

Plastiques — Résines de polychlorure de vinyle à usages généraux — Détermination de la prise de plastifiant à chaud

Polimerni materiali - PVC za splošno uporabo - Določanje absorpcije mehčal v vročem

Ta dokument določa metodo za določanje absorpcije vročega mehčala polimerov PVC, namenjenega splošni uporabi (v standardu ISO 1060-1 označen kot "G"), z vročim mešanjem v planetarnem mešalniku, ter merjenje količine absorbiranega mehčala.

General Information

• Status: Published
• Publication Date: 13-Mar-2023
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-Mar-2023
• Due Date: 12-May-2023
• Completion Date: 14-Mar-2023
• Ref Project: ISO 4574:2019 - Plastics — PVC resins for general use — Determination of hot plasticizer absorption

Relations

• Revises: SIST ISO 4574:1996 - Plastics -- PVC resins for general use -- Determination of hot plasticizer absorption
• Effective Date: 12-Dec-2015

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ISO 4574:2023
01-april-2023
Polimerni materiali - PVC za splošno uporabo - Določanje absorpcije mehčal v
vročem
Plastics - PVC resins for general use - Determination of hot plasticizer absorption
Plastiques — Résines de polychlorure de vinyle à usages généraux — Détermination de
la prise de plastifiant à chaud
Ta slovenski standard je istoveten z: ISO 4574:2019
ICS:
83.080.20 Plastomeri Thermoplastic materials
SIST ISO 4574:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 4574:2023

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SIST ISO 4574:2023
INTERNATIONAL ISO
STANDARD 4574
Second edition
2019-05
Plastics — PVC resins for general use
— Determination of hot plasticizer
absorption
Plastiques — Résines de polychlorure de vinyle à usages généraux —
Détermination de la prise de plastifiant à chaud
Reference number
ISO 4574:2019(E)
©
ISO 2019

---------------------- Page: 3 ----------------------
SIST ISO 4574:2023
ISO 4574:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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SIST ISO 4574:2023
ISO 4574:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagent . 1
6 Apparatus . 1
7 Procedure. 5
7.1 Preliminary regulation of thermostat . 5
7.2 Measurement of mass of DOP absorbed by the cotton wool . 6
7.3 Determination . 6
8 Calculation and expression of results . 7
9 Test report . 7
Annex A (informative) Reasons for the choice of temperature and time . 9
Bibliography .10
© ISO 2019 – All rights reserved iii

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SIST ISO 4574:2023
ISO 4574:2019(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 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 9,
Thermoplastic materials.
This second edition cancels and replaces the first edition (ISO 4574:1978), of which it constitutes a
minor revision. The changes compared to the previous edition are as follows:
— Clause 2 has been updated;
— Clause 3 has been added and the subsequent clauses have been renumbered;
— the document has been editorially revised.
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 2019 – All rights reserved

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SIST ISO 4574:2023
ISO 4574:2019(E)

Introduction
A need exists to evaluate the amount of plasticizer absorbed by a PVC polymer which is to be used in
dry blending operations. This document specifies a standardized technique under set conditions and is
intended to supplement the results obtained using ISO 4608.
Since these tests do not correspond in detail to particular industrial processes used for the manufacture
of dry blends from PVC polymer and plasticizer, the test results are empirical and need interpretation
in the light of experience.
© ISO 2019 – All rights reserved v

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SIST ISO 4574:2023

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SIST ISO 4574:2023
INTERNATIONAL STANDARD ISO 4574:2019(E)
Plastics — PVC resins for general use — Determination of
hot plasticizer absorption
1 Scope
This document specifies a method for determining the hot plasticizer absorption of PVC polymers
intended for general use (designated “G” in ISO 1060-1) by hot mixing in a planetary mixer and
measuring the amount of plasticizer absorbed.
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 4608:1998, Plastics — PVC resins for general use — Determination of hot plasticizer absorption
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Principle
Conditioning of 200 parts of plasticizer in the bowl of a planetary mixer at a temperature of 75 ± 0,2 °C.
Addition of 100 parts of the resin to be tested and mixing with the plasticizer. Taking of samples of
this mixture at various times (systematically from 1 min to 30 min), removal of excess plasticizer by
centrifuging, and determining the quantity of plasticizer absorbed by the polymer. Plotting of a graph of
quantity of plasticizer absorbed versus time, from which can be determined, for the polymer under test,
— the mean rate of plasticizer absorption (RPA);
— the hot plasticizer absorption (HPA) at 75 °C and 30 min (see Annex A).
5 Reagent
5.2.1 Di-(2-ethylhexyl) phthalate (DOP).
6 Apparatus
6.1 Planetary mixer, having the shape and general dimensions shown in Figures 1 and 2, and
comprising the following items:
6.1.1 Jacketed stainless-steel bowl.
© ISO 2019 – All rights reserved 1

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SIST ISO 4574:2023
ISO 4574:2019(E)

6.1.2 Thermostat and pump, for circulating demineralized water in the jacket (see note 1) to regulate
the temperature in the bowl at 75 ± 0,2 °C.
6.1.3 Beater.
6.1.4 Motor, sufficiently strong to produce the required frequency of rotation and to maintain it
throughout the mixing procedure.
6.1.5 Rotating wiper or scraper, for cleaning the inside of the bowl.
If the test is carried out at a temperature other than that specified and in particular at a temperature
exceeding 85 °C, it is necessary to use oil in the jacket instead of demineralized water.
NOTE It might be of interest to record the resistance to torque during the preparation of the mixture. A
suitable mixer for this purpose is obtai
...

INTERNATIONAL ISO
STANDARD 4574
Second edition
2019-05
Plastics — PVC resins for general use
— Determination of hot plasticizer
absorption
Plastiques — Résines de polychlorure de vinyle à usages généraux —
Détermination de la prise de plastifiant à chaud
Reference number
ISO 4574:2019(E)
©
ISO 2019

---------------------- Page: 1 ----------------------
ISO 4574:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 4574:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagent . 1
6 Apparatus . 1
7 Procedure. 5
7.1 Preliminary regulation of thermostat . 5
7.2 Measurement of mass of DOP absorbed by the cotton wool . 6
7.3 Determination . 6
8 Calculation and expression of results . 7
9 Test report . 7
Annex A (informative) Reasons for the choice of temperature and time . 9
Bibliography .10
© ISO 2019 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 4574:2019(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 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 9,
Thermoplastic materials.
This second edition cancels and replaces the first edition (ISO 4574:1978), of which it constitutes a
minor revision. The changes compared to the previous edition are as follows:
— Clause 2 has been updated;
— Clause 3 has been added and the subsequent clauses have been renumbered;
— the document has been editorially revised.
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 2019 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 4574:2019(E)

Introduction
A need exists to evaluate the amount of plasticizer absorbed by a PVC polymer which is to be used in
dry blending operations. This document specifies a standardized technique under set conditions and is
intended to supplement the results obtained using ISO 4608.
Since these tests do not correspond in detail to particular industrial processes used for the manufacture
of dry blends from PVC polymer and plasticizer, the test results are empirical and need interpretation
in the light of experience.
© ISO 2019 – All rights reserved v

---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 4574:2019(E)
Plastics — PVC resins for general use — Determination of
hot plasticizer absorption
1 Scope
This document specifies a method for determining the hot plasticizer absorption of PVC polymers
intended for general use (designated “G” in ISO 1060-1) by hot mixing in a planetary mixer and
measuring the amount of plasticizer absorbed.
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 4608:1998, Plastics — PVC resins for general use — Determination of hot plasticizer absorption
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Principle
Conditioning of 200 parts of plasticizer in the bowl of a planetary mixer at a temperature of 75 ± 0,2 °C.
Addition of 100 parts of the resin to be tested and mixing with the plasticizer. Taking of samples of
this mixture at various times (systematically from 1 min to 30 min), removal of excess plasticizer by
centrifuging, and determining the quantity of plasticizer absorbed by the polymer. Plotting of a graph of
quantity of plasticizer absorbed versus time, from which can be determined, for the polymer under test,
— the mean rate of plasticizer absorption (RPA);
— the hot plasticizer absorption (HPA) at 75 °C and 30 min (see Annex A).
5 Reagent
5.2.1 Di-(2-ethylhexyl) phthalate (DOP).
6 Apparatus
6.1 Planetary mixer, having the shape and general dimensions shown in Figures 1 and 2, and
comprising the following items:
6.1.1 Jacketed stainless-steel bowl.
© ISO 2019 – All rights reserved 1

---------------------- Page: 6 ----------------------
ISO 4574:2019(E)

6.1.2 Thermostat and pump, for circulating demineralized water in the jacket (see note 1) to regulate
the temperature in the bowl at 75 ± 0,2 °C.
6.1.3 Beater.
6.1.4 Motor, sufficiently strong to produce the required frequency of rotation and to maintain it
throughout the mixing procedure.
6.1.5 Rotating wiper or scraper, for cleaning the inside of the bowl.
If the test is carried out at a temperature other than that specified and in particular at a temperature
exceeding 85 °C, it is necessary to use oil in the jacket instead of demineralized water.
NOTE It might be of interest to record the resistance to torque during the preparation of the mixture. A
suitable mixer for this purpose is obtainable commercially. Details can be obtained from the Secretariat of ISO/
TC 61 or from the ISO Central Secretariat.
6.2 Centrifuge, the rotor of which turns in a horizontal plane, having an acceleration under the
4 −2 4 −2
conditions of test of 2,5 × 10 ms to 3,0 × 10 ms measured at the level of the bottom of the tube,
and equipped, if necessary, with a cooling system to prevent the temperature of the mixture at the end of
centrifuging from exceeding
...