SIST EN ISO 1628-3:2012

Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 3: Polyethylenes and polypropylenes (ISO 1628-3:2010)

ISO 1628-3:2010 defines particular conditions for determining the reduced viscosity (also known as viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 °C in dilute solution.
The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced viscosity determined by this method may therefore be unreliable if the sample contains fillers or other additives.

Kunststoffe - Bestimmung der Viskosität von Polymeren in verdünnter Lösung durch ein Kapillarviskosimeter - Teil 3: Polyethylen und Polypropylen (ISO 1628-3:2010)

Dieser Teil von ISO 1628 legt die speziellen Bedingungen für die Bestimmung der reduzierten Viskosität (auch
bekannt als Viskositätszahl) und der Intrinsic-Viskosität von Polyethylen und Polypropylen in verdünnter Lösung
bei 135 °C fest.
Die Viskosität von Polymerlösungen kann durch in der Probe vorhandene Zusätze beeinflusst werden. Der nach
diesem Verfahren ermittelte Wert einer reduzierten Viskosität kann deshalb unzuverlässig sein, wenn die Probe
Füllstoffe oder andere Zusätze enthält.
ANMERKUNG Die reduzierte Viskosität ist auch als Staudinger-Funktion (Jv) und die Intrinsic-Viskosität als Staudinger-
Index (Jg) bekannt.

Plastiques - Détermination de la viscosité des polymères en solution diluée à l'aide de viscosimètres à capillaires - Partie 3: Polyéthylènes et polypropylènes (ISO 1628-3:2010)

L'ISO 1628-3:2010 définit les conditions spécifiques de détermination de la viscosité réduite (également appelée indice de viscosité) et de la viscosité intrinsèque des polyéthylènes et des polypropylènes en solution diluée à 135 °C.
La viscosité des solutions de polymère peut être affectée par les additifs contenus dans l'échantillon. La valeur d'une viscosité réduite obtenue par cette méthode peut, par conséquent, ne pas être fiable si l'échantillon contient des charges ou d'autres additifs.

Polimerni materiali - Ugotavljanje viskoznosti polimernih materialov v razredčeni raztopini z uporabo kapilarnega viskozimetra - 3. del: Polietileni in polipropileni (ISO 1628-3:201)

Ta del ISO 1628 opredeljuje konkretne pogoje za ugotavljanje reducirane viskoznosti (znane tudi kot viskoznostno število) in intrinzične viskoznosti polietilenov in polipropilenov pri 135 °C v razredčeni raztopini. Velja za polietilene z majhno, srednjo in veliko gostoto in za širok razpon polipropilenov, vključno s čistimi izotaktičnimi polimeri, polimeri v stereobloku in ataktičnimi polimeri. Na viskoznost polimernih raztopin lahko vplivajo aditivi, prisotni v vzorcu. Vrednost reducirane viskoznosti, določene s to metodo, je zato lahko nezanesljiva, če vzorec vsebuje polnila ali druge aditive.

General Information

• Status: Published
• Publication Date: 22-Nov-2011
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Nov-2011
• Due Date: 21-Jan-2012
• Completion Date: 23-Nov-2011
• Ref Project: EN ISO 1628-3:2010 - Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 3: Polyethylenes and polypropylenes (ISO 1628-3:2010)

Relations

• Replaces: SIST EN ISO 1628-3:2003 - Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 3: Polyethylenes and polypropylenes (ISO 1628-3:2001)
• Effective Date: 01-Jan-2012

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2012
1DGRPHãþD
SIST EN ISO 1628-3:2003
3ROLPHUQLPDWHULDOL8JRWDYOMDQMHYLVNR]QRVWLSROLPHUQLKPDWHULDORYYUD]UHGþHQL
UD]WRSLQL]XSRUDERNDSLODUQHJDYLVNR]LPHWUDGHO3ROLHWLOHQLLQSROLSURSLOHQL
,62
Plastics - Determination of the viscosity of polymers in dilute solution using capillary
viscometers - Part 3: Polyethylenes and polypropylenes (ISO 1628-3:2010)
Kunststoffe - Bestimmung der Viskosität von Polymeren in verdünnter Lösung durch ein
Kapillarviskosimeter - Teil 3: Polyethylen und Polypropylen (ISO 1628-3:2010)
Plastiques - Détermination de la viscosité des polymères en solution diluée à l'aide de
viscosimètres à capillaires - Partie 3: Polyéthylènes et polypropylènes (ISO 1628-3:2010)
Ta slovenski standard je istoveten z: EN ISO 1628-3:2010
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 1628-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2010
ICS 83.080.20 Supersedes EN ISO 1628-3:2003
English Version
Plastics - Determination of the viscosity of polymers in dilute
solution using capillary viscometers - Part 3: Polyethylenes and
polypropylenes (ISO 1628-3:2010)
Plastiques - Détermination de la viscosité des polymères Kunststoffe - Bestimmung der Viskosität von Polymeren in
en solution diluée à l'aide de viscosimètres à capillaires - verdünnter Lösung durch ein Kapillarviskosimeter - Teil 3:
Partie 3: Polyéthylènes et polypropylènes (ISO 1628- Polyethylen und Polypropylen (ISO 1628-3:2010)
3:2010)
This European Standard was approved by CEN on 29 April 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1628-3:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 1628-3:2010) has been prepared by Technical Committee ISO/TC 61 "Plastics" in
collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by November 2010, and conflicting national standards shall be withdrawn
at the latest by November 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 1628-3:2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 1628-3:2010 has been approved by CEN as a EN ISO 1628-3:2010 without any modification.

INTERNATIONAL ISO
STANDARD 1628-3
Third edition
2010-05-01
Plastics — Determination of the viscosity
of polymers in dilute solution using
capillary viscometers —
Part 3:
Polyethylenes and polypropylenes
Plastiques — Détermination de la viscosité des polymères en solution
diluée à l'aide de viscosimètres à capillaires —
Partie 3: Polyéthylènes et polypropylènes

Reference number
ISO 1628-3:2010(E)
©
ISO 2010
ISO 1628-3:2010(E)
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ii © ISO 2010 – All rights reserved

ISO 1628-3:2010(E)
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Principle.1
4 Solvent.2
5 Apparatus.2
6 Test sample.4
7 Procedure.4
7.1 Cleaning the viscometer.4
7.2 Measurement of efflux time of solvent.4
7.3 Choice of polymer solution concentration .4
7.4 Preparation of the solution.5
7.5 Measurement of efflux time of solution .5
8 Expression of results.6
8.1 Reduced viscosity, I.6
8.2 Intrinsic viscosity, [h].6
8.3 Precision.7
9 Test report.7

ISO 1628-3:2010(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 1628-3 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic
materials.
This third edition cancels and replaces the second edition (ISO 1628-3:2001), which has been technically
revised. The main changes relate to the way in which the solution of the polymer under test is prepared and
introduced into the viscometer.
ISO 1628 consists of the following parts, under the general title Plastics — Determination of the viscosity of
polymers in dilute solution using capillary viscometers:
⎯ Part 1: General principles
⎯ Part 2: Poly(vinyl chloride) resins
⎯ Part 3: Polyethylenes and polypropylenes
⎯ Part 4: Polycarbonate (PC) moulding and extrusion materials
⎯ Part 5: Thermoplastic polyester (TP) homopolymers and copolymers
⎯ Part 6: Methyl methacrylate polymers

iv © ISO 2010 – All rights reserved

INTERNATIONAL STANDARD ISO 1628-3:2010(E)

Plastics — Determination of the viscosity of polymers in dilute
solution using capillary viscometers —
Part 3:
Polyethylenes and polypropylenes
1 Scope
This part of ISO 1628 defines particular conditions for determining the reduced viscosity (also known as
viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 °C in dilute solution.
The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced
viscosity determined by this method may therefore be unreliable if the sample contains fillers or other
additives.
NOTE Reduced viscosity is also known as the Staudinger function (J ) and intrinsic viscosity as the Staudinger index (J ).
v g
2 Normative references
The following referenced documents are indispensable for the application 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 1628-1:2009, Plastics — Determination of the viscosity of polymers in dilute solution using capillary
viscometers — Part 1: General principles
ISO 3105:1994, Glass capillary kinematic viscometers — Specifications and operating instructions
3 Principle
The times of flow of a solvent and a solution of polymer at a specified concentration in that solvent are
measured at 135 °C. The reduced viscosity and intrinsic viscosity are calculated from these measurements
and from the known concentration of the solution.
Ethylene polymers and isotactic polypropylenes are not soluble at room temperature in any known solvents.
Precautions must therefore be taken during the test to avoid any precipitation of polymer, which would give an
incorrect solution concentration.
ISO 1628-3:2010(E)
4 Solvent
4.1 Decahydronaphthalene, analytical-reagent grade, redistilled at a temperature not higher than 65 °C
and a pressure of approximately 500 Pa; its peroxidation shall be prevented by suitable means, for example
distilling in the presence of hydroquinone.
Immediately after redistillation of the decahydronaphthalene, 0,2 % by mass of antioxidant shall be added to
inhibit oxidation during the viscosity determination. Antioxidants which have been found satisfactory include:
⎯ 4,4′-thio-bis-(6-tert-butyl-3-methyl)phenol;
⎯ bis-(2-hydroxy-3-tert-butyl-5-methyl)phenylmethane;
⎯ octadecyl-3
...