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sklademVydáno: 2010-06-30
BS EN ISO 1628-3:2010
Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers Polyethylenes and polypropylenes
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| Označení normy: | BS EN ISO 1628-3:2010 |
| Počet stran: | 14 |
| Vydáno: | 2010-06-30 |
| ISBN: | 978 0 580 57208 1 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 1628-3:2010
This standard BS EN ISO 1628-3:2010 Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers is classified in these ICS categories:
- 83.080.20 Thermoplastic materials
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 Reduced viscosity is also known as the Staudinger function (Jv) and intrinsic viscosity as the Staudinger index (Jg).