BSI BS EN ISO 1628-5:2015

Current Consolidated

Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers -- Thermoplastic polyester (TP) homopolymers and copolymers

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BSI BS EN ISO 1628-5:2015

Name: BSI BS EN ISO 1628-5:2015 – Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers -- Thermoplastic polyester (TP) homopolymers and copolymers
Brand: British Standards Institution
SKU: BSI BS EN ISO 1628-5:2015
Price: 190.21 USD
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Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers -- Thermoplastic polyester (TP) homopolymers and copolymers

PUBLISH DATE 2015

PAGES 14

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),
poly(ethylene naphthalate) (PEN),
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.