Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Thermoplastic polyester (TP) homopolymers and copolymers Ingestion-build-159183 PD CEN/TS 16931-3-1 is a

PD CEN/TS 16931-3-1 is a technical specification describing the methodology for the preparation and publication of syntax bindings that link the information elements in the core semantic model to the relevant syntax or machine-readable language

the gravimetric procedure is recommended and

The standard then explains the requirements for materials that are used for both pressure and non-pressure parts

Drying of the test portion in the air at approximately 105 °C and recording of the loss of mass

Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Thermoplastic polyester (TP) homopolymers and copolymers Ingestion-build-159183 PD CEN/TS 16931-3-1 is a1 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 (cyclohexylenedimethylene terephthalate) (PCT), and poly(ethylene naphthalate) (PEN), as well as to copolyesters and other