BS 2782-7.732C(1991) : 1991 AMD 10831
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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METHODS OF TESTING PLASTICS - RHEOLOGICAL PROPERTIES - DETERMINATION OF VISCOSITY NUMBER OF POLYETHYLENES AND POLYPROPYLENES
15-11-2000
23-11-2012
National foreword
Committees responsible
Method
1. Scope
2. Normative references
3. Principle
4. Solvent
5. Apparatus
6. Test sample
7. Procedure
8. Expression of results
9. Test report
Table
1. Concentration C to be used as a function of the
viscosity number to be measured
Figure
1. Ubbelohde viscometer modified for high-temperature
tests
States particular conditions for determining the viscosity number (Staudinger function Jv) and limiting viscosity number (Staudinger index Jg) of polyethylenes and polypropylenes at 135 Degree C in dilute solution. Suitable for low, medium and high-density polyethylenes and a wide range of polypropylenes. Viscosity of polymer solutions may be affected by additives present in the sample. The results could be unreliable of the sample contains fillers or other additives. Illustrates ubbelohde viscometer modified for high-temperature tests.
| Committee |
PRM/21
|
| DevelopmentNote |
Renumbered and superseded by BS EN ISO 1628-3. (06/2004)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 1628-3:2010 | Identical |
| BS 7825-3.7:1998 | Calibration of rubber and plastics test equipment. Calibration schedules Rheological properties |
| ISO 1628-1:2009 | Plastics Determination of the viscosity of polymers in dilute solution using capillary viscometers Part 1: General principles |
| ISO 3105:1994 | Glass capillary kinematic viscometers — Specifications and operating instructions |
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