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ÖNORM EN ISO 1628-5

Issue date: 2015 04 15

Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 5: Thermoplastic polyester (TP) homopolymers and copolymers (ISO 1628-5:1998)

This part of ISO 1628 specifies a method for the determination of the viscosity number (also referred to as “reduced viscosity”) of dilute solutions of thermoplastic polyesters (TPs) in certain specified solvents. The method is applicable to poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT), poly- (cyclohexylenedimethylene terephthalate) (PCT), and poly(ethylene naphthalate) (PEN), as well as to copolyesters and other polyesters, defined in ISO 7792-1, that are soluble in one of the specified solvents under the specified conditions. The viscosity number is determined by the general procedure specified in ISO 1628-1, observing the particular conditions specified in this part of ISO 1628. The determination of the viscosity number of a thermoplastic polyester provides a measure of the relative molecular mass of the polymer.

General information on ÖNORM EN ISO 1628-5

Format
Paper | 14 Pages
Language
German | English
Publisher
Austrian Standards International

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Normative References

Here you will find an extract of the normative references. Please refer to the document itself for the full list.

Dokumentnummer Titel Ausgabedatum Art Link
Dokumentnummer
ISO 1628-1:2021
Titel
Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 1: General principles
Ausgabedatum
2021 02 26
Art
Standard
Dokumentnummer
ISO 3105:1994
Titel
Glass capillary kinematic viscometers — Specifications and operating instructions
Ausgabedatum
1994 12 01
Art
Standard
Dokumentnummer
ISO 3451-2:1984
Titel
Plastics — Determination of ash — Part 2: Polyalkylene terephthalates
Ausgabedatum
1984 05 01
Art
Standard
Dokumentnummer
ISO 7792-1:1997
Titel
Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications
Ausgabedatum
1997 12 18
Art
Standard

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