Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Thermoplastic polyester (TP) homopolymers and copolymers Ingestion-build-159183 ISO 4491‑4 specifies a method

ISO 4491‑4 specifies a method for the determination of the total oxygen content of metallic powders by reduction-extraction at high temperatures

the gravimetric procedure is recommended and

If the layer is thicker than the water suction height of the aggregate used

BS EN ISO 14343 specifies the requirements for classification of wire electrodes

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

Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Thermoplastic polyester (TP) homopolymers and copolymers Ingestion-build-159183 ISO 4491‑4 specifies a method1 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