UNE-EN ISO 1628-5:2015
Current
The latest, up-to-date edition.
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)
Hardcopy , PDF
Spanish, Castilian, English
13-05-2015
This part of ISO 1628 specifies a method for the determination of the viscosity number (also referred toas 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- (cyclohexylenedimethylene terephthalate) (PCT), and poly(ethylene naphthalate) (PEN), as well asto copolyesters and other polyesters, defined in ISO 7792-1, that are soluble in one of the specifiedsolvents under the specified conditions.
The viscosity number is determined by the general procedure specified in ISO 1628-1, observing theparticular conditions specified in this part of ISO 1628.
The determination of the viscosity number of a thermoplastic polyester provides a measure of therelative molecular mass of the polymer.
| Committee |
CTN 53/SC 6
|
| DevelopmentNote |
Supersedes UNE ISO 1628-5. (05/2015)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| ISO 1628-5:1998 | Identical |
| EN ISO 1628-5:2015 | Identical |
| ISO 3451-2:1998 | Plastics — Determination of ash — Part 2: Poly(alkylene terephthalate) materials |
| ISO 1628-1:2009 | Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 1: General principles |
| ISO 7792-1:2012 | Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications |
| ISO 3105:1994 | Glass capillary kinematic viscometers — Specifications and operating instructions |
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