prEN ISO 182-3
(Main)Plastics - Determination of the tendency of compounds and products based on vinyl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevated temperatures - Part 3: Conductometric method (ISO/FDIS 182-3:2025)
Plastics - Determination of the tendency of compounds and products based on vinyl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevated temperatures - Part 3: Conductometric method (ISO/FDIS 182-3:2025)
This document specifies a method for the determination of the thermal stability at elevated temperature of compounds and products based on vinyl chloride homopolymers and copolymers (in the following text abbreviated as PVC) which undergo dehydrochlorination (the evolution of hydrogen chloride).
This document is applicable to the characterization of PVC compounds and products, especially with regard to the effectiveness of their heat-stabilizing systems.
It is applicable to coloured PVC compounds and products where a discolouration test under the action of heat may be unsatisfactory.
This document is applicable to compounded PVC materials and products. It can be applicable to polymers in powder form under appropriate conditions, to be agreed upon between the interested parties.
This document does not apply to PVC compounds in the form of dry blends, since such materials can be not sufficiently homogeneous.
This document does not apply to PVC compounds and products which evolve other decomposition products, in addition to hydrogen chloride, at elevated temperatures that can affect the conductivity of water when they are absorbed into it. In this case, a method suitable for the determination of chloride ion (Cl−) in the absorbing solution shall be used (see ISO 182-4[2]).
This document can also be applied to other plastics materials which can evolve hydrogen chloride or other hydrogen halides when heated under the conditions prescribed by the relevant specifications, or as agreed upon between the interested parties.
Kunststoffe - Bestimmung der Neigung von Formmassen und Erzeugnissen auf der Basis von Vinylchlorid-Homopolymeren und -Copolymeren, bei erhöhten Temperaturen Chlorwasserstoff und andere saure Produkte abzugeben - Teil 3: Leitfähigkeitsverfahren (ISO/FDIS 182-3:2025)
1.1 Dieses Dokument legt ein Verfahren zur Bestimmung der thermischen Stabilität von Formmassen und Erzeugnissen bei erhöhter Temperatur fest, die auf der Basis von Vinylchlorid-Homopolymeren und Copolymeren (im folgenden Text abgekürzt als PVC) hergestellt sind und die eine Dehydrochlorierung (Abspaltung von Chlorwasserstoff) durchlaufen.
1.2 Dieses Dokument ist zur Charakterisierung von Formmassen und Erzeugnissen aus PVC anwendbar, insbesondere hinsichtlich der Wirksamkeit ihrer Wärmestabilisierungssysteme.
Es ist anwendbar für gefärbte PVC-Formmassen und PVC-Erzeugnisse, bei denen eine Verfärbungsprüfung unter Wärmeeinwirkung unbefriedigend sein kann.
1.3 Dieses Dokument ist anwendbar für endgefertigte Werkstoffe und Erzeugnisse aus PVC. Unter bestimmten Bedingungen, in Abhängigkeit von der Vereinbarung zwischen den interessierten Parteien, kann es für Polymere in Pulverform angewendet werden.
Dieses Dokument ist nicht anwendbar für trockene Mischungen von PVC-Formmassen, da solche Werkstoffe möglicherweise nicht homogen genug sind.
1.4 Dieses Dokument ist nicht anwendbar für Formmassen und Erzeugnisse aus PVC, die bei erhöhten Temperaturen andere Zersetzungsprodukte als Chlorwasserstoff abgeben, welche die Leitfähigkeit von Wasser, wenn sie darin absorbiert werden, verändern können.
ANMERKUNG In diesem Fall stellt ISO 182 4 [2] das geeignete Verfahren zur Bestimmung des Chlorid-Ions (Cl−) in der absorbierenden Lösung zur Verfügung.
1.5 Dieses Dokument kann auch für andere Kunststoffe angewendet werden, die bei Erwärmung, entsprechend den in den einschlägigen Spezifikationen festgelegten Bedingungen oder entsprechend den Vereinbarungen zwischen den interessierten Parteien, Chlorwasserstoff oder andere Halogenwasserstoffe abgeben können.
WARNUNG — Die Anwendung dieses Dokuments kann die Anwendung gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Dieses Dokument beansprucht nicht, sämtliche mit seiner Anwendung verbundenen Sicherheitsprobleme zu behandeln. Es liegt in der Verantwortung des Anwenders dieses Dokuments, vor ihrer Anwendung geeignete Maßnahmen für die Sicherheit und den Gesundheitsschutz des Personals zu ergreifen, und dafür Sorge zu tragen, dass behördliche und gesetzliche Maßnahmen eingehalten werden.
Plastiques - Détermination de la tendance des compositions et produits à base d’homopolymères et de copolymères du chlorure de vinyle à dégager du chlorure d’hydrogène et éventuellement d’autres produits acides à températures élevées - Partie 3: Méthode conductimétrique (ISO/FDIS 182-3:2025)
Le présent document spécifie une méthode pour la détermination de la stabilité thermique à températures élevées des compositions et produits à base d’homopolymères et de copolymères du chlorure de vinyle (PVC dans le texte qui suit), qui sont sujets à une déhydrochloruration (dégagement de chlorure d’hydrogène).
Le présent document s’applique à la caractérisation des compositions et produits à base de PVC, en particulier en ce qui concerne l’efficacité de leurs systèmes de stabilisation à la chaleur.
Il est applicable aux compositions et produits à base de PVC colorés, lorsqu’un essai de décoloration sous l’action de la chaleur peut être insatisfaisant.
Le présent document est applicable aux matériaux et produits composés de PVC. Il peut être applicable aux polymères sous forme de poudres dans des conditions appropriées devant faire l’objet d’un accord entre les parties intéressées.
Le présent document ne s’applique pas aux compositions de PVC sous forme de mélanges secs, ces matériaux pouvant ne pas être suffisamment homogénéisés.
Le présent document ne s’applique pas aux compositions et produits à base de PVC qui dégagent, à températures élevées, des produits de décomposition en plus du chlorure d’hydrogène pouvant avoir une incidence sur la conductivité de l’eau lorsqu’ils y sont absorbés. Dans ce cas, une méthode appropriée pour la détermination des ions chlorures (Cl−) dans la solution absorbante doit être employée (voir l’ISO 182-4[2]).
Le présent document peut aussi être appliqué à d’autres matériaux plastiques pouvant dégager du chlorure d’hydrogène ou d’autres halogénures d’hydrogène lorsqu’ils sont chauffés dans des conditions particulières prescrites dans les spécifications appropriées ou convenues entre les parties intéressées.
Polimerni materiali - Ugotavljanje tendence zmesi in proizvodov na osnovi homo- in kopolimerov vinilklorida po sproščanju klorovodika ali drugih kislih produktov pri povišanih temperaturah - 3. del: Konduktometrična metoda (ISO/FDIS 182-3:2025)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Polimerni materiali - Ugotavljanje tendence zmesi in proizvodov na osnovi homo-
in kopolimerov vinilklorida po sproščanju klorovodika ali drugih kislih produktov
pri povišanih temperaturah - 3. del: Konduktometrična metoda (ISO/FDIS 182-
3:2025)
Plastics - Determination of the tendency of compounds and products based on vinyl
chloride homopolymers and copolymers to evolve hydrogen chloride and any other
acidic products at elevated temperatures - Part 3: Conductometric method (ISO/FDIS
182-3:2025)
Kunststoffe - Bestimmung der Neigung von Formmassen und Erzeugnissen auf der
Basis von Vinylchlorid-Homopolymeren und -Copolymeren, bei erhöhten Temperaturen
Chlorwasserstoff und andere saure Produkte abzugeben - Teil 3: Leitfähigkeitsverfahren
(ISO/FDIS 182-3:2025)
Plastiques - Détermination de la tendance des compositions et produits à base
d’homopolymères et de copolymères du chlorure de vinyle à dégager du chlorure
d’hydrogène et éventuellement d’autres produits acides à températures élevées - Partie
3: Méthode conductimétrique (ISO/FDIS 182-3:2025)
Ta slovenski standard je istoveten z: prEN ISO 182-3
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
FINAL DRAFT
International
Standard
ISO/FDIS 182-3
ISO/TC 61/SC 9
Plastics — Determination of
Secretariat: KATS Voting
the tendency of compounds and
begins on:
products based on vinyl chloride
2025-07-04
homopolymers and copolymers to
evolve hydrogen chloride and any
Voting terminates on:
other acidic products at elevated
2025-09-26
temperatures —
Part 3:
Conductometric method
Plastiques — Détermination de la tendance des compositions et
produits à base d’homopolymères et de copolymères du chlorure
de vinyle à dégager du chlorure d’hydrogène et éventuellement
d’autres produits acides à températures élevées —
Partie 3: Méthode conductimétrique
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
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TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 182-3:2025(en) © ISO 2025
FINAL DRAFT
ISO/FDIS 182-3:2025(en)
International
Standard
ISO/FDIS 182-3
ISO/TC 61/SC 9
Plastics — Determination of
Secretariat: KATS
the tendency of compounds and
Voting begins on:
products based on vinyl chloride
homopolymers and copolymers to
Voting terminates on:
evolve hydrogen chloride and any
other acidic products at elevated
temperatures —
Part 3:
Conductometric method
Plastiques — Détermination de la tendance des compositions et
produits à base d’homopolymères et de copolymères du chlorure
de vinyle à dégager du chlorure d’hydrogène et éventuellement
d’autres produits acides à températures élevées —
Partie 3: Méthode conductimétrique
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.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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Published in Switzerland Reference number
ISO/FDIS 182-3:2025(en) © ISO 2025
ii
ISO/FDIS 182-3:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principle . 2
5 Reagents . 2
6 Apparatus . 2
7 Preparation of test samples . 7
7.1 General .7
7.2 PVC plastisols . .7
7.3 PVC pellets, extrudates, mouldings, thick sheet, etc. .7
7.4 PVC film and sheet .7
7.5 PVC coatings .7
7.6 Cable and conductor insulation or sheating .7
8 Number of tests . 7
9 Temperatures for dehydrochlorination . 7
10 Test procedure . 8
10.1 Preparation of test portion .8
10.2 Preliminary operations .8
10.3 Special precautions when using dehydrochlorination cell A .8
10.4 Preparation of the measurement cell .8
10.5 Decomposition of the test portion .8
11 Expression of results . 9
12 Test report . 9
13 Precision . 9
13.1 General .9
13.2 Repeatability .10
13.3 Reproducibility .10
13.4 Comparison with the pH-meter method (ISO 182-2) .10
13.5 Factors affecting the stability time .10
13.6 Conclusions . 12
Annex A (informative) Cleaning of the apparatus .13
Annex B (informative) Calculation of repeatability and reproducibility — Conductometric and
pH-meter methods . 14
Annex C (informative) Interlaboratory test.16
Bibliography .18
iii
ISO/FDIS 182-3:2025(en)
Foreword
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This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic
materials, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 249, Plastics, in accordance with the Agreement on
...
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