SIST EN ISO 2555:2018
(Main)Plastics - Resins in the liquid state or as emulsions or dispersions - Determination of apparent viscosity using a single cylinder type rotational viscometer method (ISO 2555:2018)
Plastics - Resins in the liquid state or as emulsions or dispersions - Determination of apparent viscosity using a single cylinder type rotational viscometer method (ISO 2555:2018)
This document specifies a method of determining apparent viscosity of resins in a liquid state using a
single cylinder type rotational viscometer.
The method can be used for viscosity measurements in the range from 0,02 Pa ⋅ s to 60 000 Pa ⋅ s.
This document is applicable to both Newtonian and non-Newtonian liquids and the measured apparent
viscosity depends on the velocity gradient to which the liquids are subjected during the measurement.
Kunststoffe - Harze im flüssigen Zustand, als Emulsionen oder Dispersionen - Bestimmung der scheinbaren Viskosität mit einem Rotationsviskosimeter mit Einzelzylinder (ISO 2555:2018)
Dieses Dokument legt ein Verfahren zur Bestimmung der scheinbaren Viskosität von Harzen im flüssigen Zustand mittels Rotationsviskosimeter mit Einzelzylinder fest.
Das Verfahren kann für Viskositätsmessungen im Bereich 0,02 Pa × s − 60 000 Pa × s verwendet werden.
Dieses Dokument gilt sowohl für Newtonsche und nicht Newtonsche Flüssigkeiten, wobei die gemessene scheinbare Viskosität abhängig ist vom Geschwindigkeitsgefälle der Flüssigkeiten während der Messung.
Plastiques - Résines à l'état liquide ou en émulsions ou dispersions - Détermination de la viscosité apparente par la méthode du viscomètre rotatif de type à un cylindre (ISO 2555:2018)
Le présent document spécifie une méthode de détermination de la viscosité apparente des résines à l'état liquide à l'aide d'un viscosimètre rotatif de type à un cylindre.
La méthode peut être utilisée pour les mesurages de viscosité entre 0,02 Pa ⋅ s et 60 000 Pa ⋅ s.
Le présent document est applicable à la fois aux liquides newtoniens et non newtoniens, et la viscosité apparente mesurée dépend du gradient de vitesse auquel les liquides sont soumis pendant le mesurage.
Polimerni materiali - Tekoče smole, emulzije ali disperzije - Ugotavljanje navidezne viskoznosti z metodo enovaljnega rotacijskega viskozimetra (ISO 2555:2018)
Ta dokument določa metodo za ugotavljanje navidezne viskoznosti tekočih smol z enovaljnim rotacijskim viskozimetrom.
Metoda se lahko uporablja za meritve viskoznosti v razponu od 0,02 Pa ⋅ s do 60 000 Pa ⋅ s. Ta dokument se uporablja za newtonske in nenewtonske tekočine, pri čemer je izmerjena navidezna viskoznost odvisna od gradienta hitrosti, ki so mu tekočine izpostavljene med meritvijo.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 2555:2018
01-september-2018
1DGRPHãþD
SIST EN ISO 2555:2000
3ROLPHUQLPDWHULDOL7HNRþHVPROHHPXO]LMHDOLGLVSHU]LMH8JRWDYOMDQMHQDYLGH]QH
YLVNR]QRVWL]PHWRGRHQRYDOMQHJDURWDFLMVNHJDYLVNR]LPHWUD ,62
Plastics - Resins in the liquid state or as emulsions or dispersions - Determination of
apparent viscosity using a single cylinder type rotational viscometer method (ISO
2555:2018)
Kunststoffe - Harze im flüssigen Zustand, als Emulsionen oder Dispersionen -
Bestimmung der scheinbaren Viskosität mit einem Rotationsviskosimeter mit
Einzelzylinder (ISO 2555:2018)
Plastiques - Résines à l'état liquide ou en émulsions ou dispersions - Détermination de la
viscosité apparente par la méthode du viscomètre rotatif de type à un cylindre (ISO
2555:2018)
Ta slovenski standard je istoveten z: EN ISO 2555:2018
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 2555:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 2555:2018
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SIST EN ISO 2555:2018
EN ISO 2555
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2018
EUROPÄISCHE NORM
ICS 83.080.01 Supersedes EN ISO 2555:1999
English Version
Plastics - Resins in the liquid state or as emulsions or
dispersions - Determination of apparent viscosity using a
single cylinder type rotational viscometer method (ISO
2555:2018)
Plastiques - Résines à l'état liquide ou en émulsions ou Kunststoffe - Harze im flüssigen Zustand, als
dispersions - Détermination de la viscosité apparente Emulsionen oder Dispersionen - Bestimmung der
par la méthode du viscomètre rotatif de type à un scheinbaren Viskosität mit einem
cylindre (ISO 2555:2018) Rotationsviskosimeter mit Einzelzylinder (ISO
2555:2018)
This European Standard was approved by CEN on 26 May 2018.
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-CENELEC 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-CENELEC 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2555:2018 E
worldwide for CEN national Members.
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SIST EN ISO 2555:2018
EN ISO 2555:2018 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 2555:2018
EN ISO 2555:2018 (E)
European foreword
This document (EN ISO 2555:2018) 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 December 2018, and conflicting national standards
shall be withdrawn at the latest by December 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 2555:1999.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 2555:2018 has been approved by CEN as EN ISO 2555:2018 without any modification.
3
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SIST EN ISO 2555:2018
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SIST EN ISO 2555:2018
INTERNATIONAL ISO
STANDARD 2555
Third edition
2018-05
Plastics — Resins in the liquid state
or as emulsions or dispersions —
Determination of apparent viscosity
using a single cylinder type rotational
viscometer method
Plastiques — Résines à l'état liquide ou en émulsions ou dispersions
— Détermination de la viscosité apparente par la méthode du
viscosimètre rotatif de type à un cylindre
Reference number
ISO 2555:2018(E)
©
ISO 2018
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SIST EN ISO 2555:2018
ISO 2555:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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
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Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
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SIST EN ISO 2555:2018
ISO 2555:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
4.1 General . 1
4.2 Operating principle . 2
4.3 Brief description . 2
5 Apparatus . 3
5.1 Single cylinder type rotational viscometer . 3
5.2 Thermostatic liquid bath . 7
5.3 Additional apparatus . 7
6 Choice of spindle and rotational speed . 7
7 Procedure. 8
8 Expression of results .10
9 Test report .11
Annex A (informative) Choice of test conditions for general application to resins in the
liquid state, emulsions and dispersions .12
Annex B (normative) Spindle and guard stirrup .14
Bibliography .17
© ISO 2018 – All rights reserved iii
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SIST EN ISO 2555:2018
ISO 2555:2018(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: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical-
chemical properties.
This third edition cancels and replaces the second edition (ISO 2555:1989), which has been technically
revised. The main changes compared to the previous edition are as follows:
a) the name of the equipment has been changed to “single cylinder type rotational viscometer” and
the method of determination of viscosity is described with more general terms to avoid reference
to specific brand names;
b) the commercially available main models and spindles have been summarized;
c) digital type viscometer has been added;
d) the accuracy of test method has been added;
e) the calibration method has been added.
iv © ISO 2018 – All rights reserved
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SIST EN ISO 2555:2018
ISO 2555:2018(E)
Introduction
A rotational viscometer is composed of a spindle, a torque measuring device and a spring. There are
three types of rotational viscometers with regard to difference of the spindle:
a) single cylinder type (used in this document, i.e. ISO 2555);
[2]
b) coaxial cylinder type (used in ISO 3219 );
[2]
c) cone-plate type (used in ISO 3219 ).
Single cylinder type rotational viscometers measure viscosity under non-constant shear rate. Coaxial
cylinder type and cone-plate type instruments measure viscosity under constant shear rate.
When using a single cylinder type instrument, the measured viscosity is relative to measuring
conditions. Conditions are therefore intended to be specified for viscosity measurements.
For Newtonian fluids, the viscosity value remains the same even if different viscosity measuring
methods from this document and ISO 3219 are used.
With non-Newtonian fluids the measured viscosity changes depending on shear rate. The viscosity
determined using different measuring methods such as methods from this document and ISO 3219
therefore may differ from each other, depending on shear rates used during measurements.
The Brookfield method has contributed a lot to determination of liquid viscosity. With its simple
measuring low-cost equipment, the principles underlying the Brookfield technique still remain an
important element in determination of viscosity of liquids.
This document is largely based on the Brookfield method established in 1989. However, some of the
instruments mentioned in the previous edition of this document have long been discontinued. Moreover,
although analogue (or the so-called “dial”) type was the predominant viscometer type at that time, the
use has now shifted to digital viscometers in the recent years, increasing the need for this document to
be revised.
[1]
The terms and standards introduced in this new edition are based on ISO 1652 .
Currently, digital viscometer has become the mainstream. However, analogue (or dial) viscometer is
still used and cannot be removed from the method. This document allows the use of both analogue (or
dial) viscometer and digital viscometer.
© ISO 2018 – All rights reserved v
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SIST EN ISO 2555:2018
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SIST EN ISO 2555:2018
INTERNATIONAL STANDARD ISO 2555:2018(E)
Plastics — Resins in the liquid state or as emulsions or
dispersions — Determination of apparent viscosity using a
single cylinder type rotational viscometer method
1 Scope
This document specifies a method of determining apparent viscosity of resins in a liquid state using a
single cylinder type rotational viscometer.
The method can be used for viscosity measurements in the range from 0,02 Pa ⋅ s to 60 000 Pa ⋅ s.
This document is applicable to both Newtonian and non-Newtonian liquids and the measured apparent
viscosity depends on the velocity gradient to which the liquids are subjected during the measurement.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
single cylinder type rotational viscometer
apparatus that determines viscosity by measuring the torque acting on a cylinder or a disc surface
rotating in laminar flow condition at constant angular velocity
3.2
spindle
rotational symmetric object in the form of a cylinder or disc connected to a vertically rotating shaft
3.3
apparent viscosity
viscosity of liquids/fluids determined from the measured torque using predetermined calibration table
Note 1 to entry: For non-Newtonian fluids the apparent viscosity depends on the shear rate. With these types of
viscometer, the velocity gradient is not the same for every point of the spindle. Thus, for a non-Newtonian fluid,
the result is not strictly the true “viscosity at a known velocity gradient” and therefore is conventionally called
the apparent viscosity.
4 Principle
4.1 General
A rotational symmetric spindle is driven at constant rotational speed in the liquid being measured.
© ISO 2018 – All rights reserved 1
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SIST EN ISO 2555:2018
ISO 2555:2018(E)
The resistance exerted by the fluid on the spindle, which depends on the viscosity of the liquid, creates
a torque which is measured by a suitable device.
The apparent viscosity measured using a single cylinder type rotational viscometer is obtained
by multiplying the torque readout with a coefficient which depends on the rotational speed and
characteristics of the spindle. With digital viscometers, viscosity is displayed by setting a certain
rotational speed and entering the correct spindle number.
This method applies to Newtonian and non-Newtonian matter.
4.2 Operating principle
With analogue viscometer, a synchronous mo
...
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