Plastics - Polyamides - Determination of viscosity number (ISO 307:2007)

ISO 307:2007 specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents.
For pure polyamides or polyamides containing additives that do not interfere with the viscosity measurement, the determination of the viscosity number of a polyamide provides a measure of the molecular mass of the polymer. The viscosity number of pure polyamides or polyamides which contain additives that do not interfere with the viscosity measurement can be converted from one solvent to another.
The viscosity number of polyamides containing additives that do interfere with the viscosity measurement is specific to the solvent used and the material composition. In this case, the measured viscosity number cannot be converted from one solvent to another.
The method is applicable to the polyamides designated PA 46, PA 6, PA 66, PA 69, PA 610, PA 612, PA 11, PA 12, PA 6T/66, PA 6I/6T, PA 6T/6I/66, PA 6T/6I, PA 6I/6T/66 and PA MXD6, as well as to copolyamides, compounds of polyamides and other polyamides that are soluble in one of the specified solvents under the specified conditions.
The method is not applicable to polyamides produced by anionic polymerization of lactams or produced with cross-linking agents; such polyamides are normally insoluble in the specified solvents.

Kunststoffe - Polyamide - Bestimmung der Viskositätszahl (ISO 307:2007)

Diese Internationale Norm legt ein Verfahren zur Bestimmung der Viskositätszahl von verdünnten Polyamid¬lösungen in bestimmten, festgelegten Lösemitteln fest.
Die Polyamidproben müssen in den aufgeführten Lösemitteln vollständig löslich sein. Zusatzstoffe, wie z. B. Flammschutzmittel und Modifikatoren, wirken sich oft störend auf die Viskositätsmessung aus, wobei sie in Ameisensäure zu einem größeren und in Schwefelsäure zu einem kleineren Wert der Viskositätszahl führen. Der Grad der Auswirkung hängt bei Polyamid Compounds von dem Zusatzstoff, der Menge an Zusatzstoff, dem Vorliegen weiterer Zusatzstoffe und den Compoundierbedingungen (Aufbereitungsbedingungen) ab.
Bei reinen Polyamiden oder von Polyamiden mit Zusatzstoffen, die die Viskositätsmessung nicht stören, ergibt die Bestimmung der Viskositätszahl eines Polyamids ein Maß für die Molekülmasse des Polymers. Die Viskositätszahl von reinen Polyamiden oder von Polyamiden mit Zusatzstoffen, die die Viskositätsmessung nicht stören, kann von einem Lösemittel auf ein anderes umgewandelt werden.
Die Viskositätszahl von Polyamiden mit Zusatzstoffen, die sich störend auf die Viskositätsmessung auswirken, ist spezifisch für das verwendete Lösemittel und die Werkstoffzusammensetzung. In diesem Fall kann die gemessene Viskositätszahl nicht von einem Lösemittel auf ein anderes umgewandelt werden.
Das Verfahren ist auf Polyamide mit den Bezeichnungen PA 46, PA 6, PA 66, PA 69, PA 610, PA 612, PA 11, PA 12, PA 6T/66, PA 6I/6T, PA 6T/6I/66, PA 6T/6I, PA 6I/6T/66 und PA MXD6, wie in ISO 1847 1 definiert, und Copolyamide, Polyamid Compounds und sonstige Polyamide anwendbar, die unter den festgelegten Bedingungen in einem der festgelegten Lösemittel löslich sind.

Plastiques - Polyamides - Détermination de l'indice de viscosité (ISO 307:2007)

L'ISO 307:2007 spécifie une méthode pour la détermination de l'indice de viscosité de solutions diluées de polyamides dans certains solvants spécifiés.
Pour les polyamides purs ou les polyamides contenant des additifs qui n'affectent pas le mesurage de la viscosité, la détermination de l'indice de viscosité d'un polyamide fournit une mesure de la masse moléculaire du polymère. L'indice de viscosité des polyamides purs ou des polyamides qui contiennent des additifs qui n'affectent pas le mesurage de la viscosité peut être converti d'un solvant à un autre.
L'indice de viscosité des polyamides contenant des additifs qui affectent le mesurage de la viscosité est spécifique au solvant utilisé et à la composition du matériau. Dans ce cas, l'indice de viscosité mesuré ne peut pas être converti d'un solvant à l'autre.
La méthode est applicable aux polyamides désignés PA 46, PA 6, PA 66, PA 69, PA 610, PA 612, PA 11, PA 12, PA 6T/66, PA 6I/6T, PA 6T/6I/66, PA 6T/6I, PA 6I/6T/66 et PA MXD6, ainsi qu'aux copolyamides, aux composés polyamides et aux autres polyamides solubles dans l'un des solvants spécifiés dans les conditions spécifiées.
La méthode n'est pas applicable aux polyamides obtenus par polymérisation anionique des lactames ou produits avec des agents de réticulation; de tels polyamides étant normalement insolubles dans les solvants spécifiés.

Polimerni materiali - Poliamidi - Določanje števila viskoznosti (ISO 307:2007)

General Information

Status
Withdrawn
Publication Date
14-May-2007
Withdrawal Date
28-May-2019
Technical Committee
Drafting Committee
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
29-May-2019

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 307:2007
01-september-2007
1DGRPHãþD
SIST EN ISO 307:2003
3ROLPHUQLPDWHULDOL3ROLDPLGL'RORþDQMHãWHYLODYLVNR]QRVWL ,62
Plastics - Polyamides - Determination of viscosity number (ISO 307:2007)
Kunststoffe - Polyamide - Bestimmung der Viskositätszahl (ISO 307:2007)
Plastiques - Polyamides - Détermination de l'indice de viscosité (ISO 307:2007)
Ta slovenski standard je istoveten z: EN ISO 307:2007
ICS:
83.080.20 Plastomeri Thermoplastic materials
SIST EN ISO 307:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN ISO 307
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2007
ICS 83.080.20 Supersedes EN ISO 307:2003
English Version
Plastics - Polyamides - Determination of viscosity number (ISO
307:2007)
Plastiques - Polyamides - Détermination de l'indice de Kunststoffe - Polyamide - Bestimmung der Viskositätszahl
viscosité (ISO 307:2007) (ISO 307:2007)
This European Standard was approved by CEN on 14 May 2007.
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, 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: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 307:2007: E
worldwide for CEN national Members.

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EN ISO 307:2007 (E)





Foreword


This document (EN ISO 307:2007) 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 2007, and conflicting national
standards shall be withdrawn at the latest by November 2007.

This document supersedes EN ISO 307:2003.

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, 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.


Endorsement notice

The text of ISO 307:2007 has been approved by CEN as EN ISO 307:2007 without any
modifications.

2

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INTERNATIONAL ISO
STANDARD 307
Fifth edition
2007-05-15

Plastics — Polyamides — Determination
of viscosity number
Plastiques — Polyamides — Détermination de l'indice de viscosité




Reference number
ISO 307:2007(E)
©
ISO 2007

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ISO 307:2007(E)
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