DIN EN ISO 1628-5
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)
| Organization: | DIN |
| Publication Date: | 1 May 2015 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Thermoplastic materials): | 83.080.20 |
scope:
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-
(cyclohexylenedimeth
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.
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