Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Polyethylenes and polypropylenes algolia-search-ignore mooring winches

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that the nuts constituting the batch satisfy the requirements of BS EN 4048

1 Number and dimensions of the test specimens

the method specified

Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Polyethylenes and polypropylenes algolia-search-ignore mooring winches1 Scope This part of ISO 1628 defines particular conditions for determining the reduced viscosity (also known as viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 C in dilute solution. The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced viscosity determined by this method may therefore be unreliable if the sample contains fillers or other additives. NOTE