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ČSN EN ISO 1628-5 (640355)
Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 5: Thermoplastic polyester (TP) homopolymers and copolymers
Automatically translated name:
Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 5: Homopolymers and copolymers of thermoplastic polyesters (TP) ( standard for direct use as CSN ).
STANDARD published on 1.9.2015
The information about the standard:
Designation standards: ČSN EN ISO 1628-5
Classification mark: 640355
Catalog number: 97778
Publication date standards: 1.9.2015
SKU: NS-614185
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN ISO 1628-5 (640355):
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- (cyclohexylenedimethylene terephthalate) (PCT), and poly(ethylene naphthalate) (PEN), as well as to copolyesters and other polyesters, defined in ISO 7792-1, that are soluble in one of the specified solvents under the specified conditions.
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
Preview of the standard ČSN EN ISO 1628-5 (640355)
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