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

Standard No.

EN ISO 307:2007

Release Date

2007

Published By

European Committee for Standardization (CEN)

Status

Be replaced

Replace By

EN ISO 307:2007/A1:2013

Latest

EN ISO 307:2019

Scope

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 soluble in the solvents mentioned. Additives such as flame-retardants and modifiers often interfere with the viscosity measurement, having an increasing effect on the viscosity number in formic acid and a decreasing effect on the viscosity number in sulfuric acid. The extent of the effect for polyamide compounds depends on the additive, the quantity of the additive, the presence of other additives and the compounding conditions.For pure polyamides or polyamides conta

EN ISO 307:2007 history

• 2019 EN ISO 307:2019 Plastics - Polyamides - Determination of viscosity number (ISO 307:2019)
• 2013 EN ISO 307:2007/A1:2013 Plastics - Polyamides - Determination of viscosity number - Amendment 1: Corrections, and update to reference to JIS K 6920-2 (ISO 307:2007/Amd 1:2013)
• 2007 EN ISO 307:2007 Plastics - Polyamides - Determination of viscosity number (ISO 307:2007)
• 2003 EN ISO 307:2003 Plastics - Polyamides - Determination of viscosity number ISO 307: 2003
• 1997 EN ISO 307:1997 Plastics - Polyamides - Determination of Viscosity Number ISO 307: 1994