RO
SR EN ISO 307:2007
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 speci
Status :
Withdrawn
Approval date : 7/27/2007
Publish date : 7/29/2007
Withdrawal date : 9/30/2019
Number of pages : 36
ICS : 83.080.20 Thermoplastic materials
Technical Committee : 108 - Plastics, codification and analysis methods
- Replaces SR EN ISO 307:2004
- Normative reference SR EN ISO 3451-4:2001
- Normative reference SR EN ISO 1042:2002
- Normative reference SR EN ISO 1628-1:2009
- Normative reference SR EN ISO 15512:2004
- Normative reference SR ISO 3105:1998
- Normative reference SR EN ISO 1874-1:2001
- Replaced by SR EN ISO 307:2019
- Amended by SR EN ISO 307:2007/A1:2013