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ISO 307

Plastics - Polyamides - Determination of viscosity number

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Organization: ISO
Publication Date: 1 July 1977
Status: inactive
Page Count: 9
ICS Code (Thermoplastic materials): 83.080.20
scope:

SCOPE AND FIELD OF APPLICATION

This International Standard specifies a method for the determination of the viscosity number (see annex A) of a dilute solution of polyamide in formic acid or metacresol. This method is applicable only to those resins that give stable solutions and reproducible results under the specified conditions of test.

If a monomerl ) is known to be present in the sample, the amount should be determined by the procedure described in ISO/R 599 and reported. The presence of monomer affects considerably the determination of viscosity number of certain types of polyamide. If the sample contains an additive or a filler, which would affect the viscosity measurement, it should be removed by a procedure agreed between the interested parties.

This method is meant to give an insight into the molecular structure of polyamides and to allow the comparison of different types.

Document History

April 1, 2019
Plastics - Polyamides - Determination of viscosity number
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...
April 15, 2013
Plastics - Polyamides - Determination of viscosity number AMENDMENT 1: Corrections, and update to reference to JIS K 6920-2
A description is not available for this item.
May 15, 2007
Plastics - Polyamides - Determination of viscosity number
This International Standard specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents. Polyamide samples must be completely...
August 15, 2003
Plastics - Polyamides - Determination of Viscosity Number
A description is not available for this item.
January 1, 1994
Plastics - Polyamides - Determination of Viscosity Number
A description is not available for this item.
May 15, 1984
Plastics - Polyamides - Determination of viscosity number
Scope and field of application This International Standard specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents. The...
ISO 307
July 1, 1977
Plastics - Polyamides - Determination of viscosity number
SCOPE AND FIELD OF APPLICATION This International Standard specifies a method for the determination of the viscosity number (see annex A) of a dilute solution of polyamide in formic acid or...
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