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SRPS EN ISO 307:2019

Plastics - Polyamides - Determination of viscosity number (ISO 307:2019)

Oct 31, 2019

General information

60.60     Oct 31, 2019

ISS

G061

European Norm

83.080.20  

English  

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Scope

This document specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents.
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 defined in ISO 16396-1, 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.
The viscosity number is determined by the general procedure specified in ISO 1628‑1, observing the particular conditions specified in this document.

Life cycle

PREVIOUSLY

WITHDRAWN
SRPS EN ISO 307:2012/A1:2014

WITHDRAWN
SRPS EN ISO 307:2012

NOW

PUBLISHED
SRPS EN ISO 307:2019
60.60 Standard published
Oct 31, 2019

REVISED BY

PROJECT
prSRPS EN ISO 307:2024

Related project

Adopted from EN ISO 307:2019

Adopted from ISO 307:2019