ISO 16790:2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
Plastics Determination of drawing characteristics of thermoplastics in the molten state
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
02-17-2021
English, French
06-23-2005
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ISO 16790:2005 specifies a method for determining the drawing and break characteristics of molten plastics. The method involves the measurement of the force generated in deforming a molten filament under defined extrusion temperature and drawing conditions.
Data is generated under non-isothermal and non-homogeneous deformation conditions. However, it is useful for the interpretation of polymer behaviour in extensional flow.
The method is suitable for thermoplastics moulding and extrusion materials that can be extruded using a capillary extrusion rheometer, or an extruder with capillary rod die or other extrusion devices, and have sufficient melt strength to be handled without difficulty.
Such materials should be chemically stable and produce a uniform extrudate free from heterogeneities, bubbles, unmelted impurities, etc.
This method may provide information on:
- processability for all extrusion techniques;
- the effect of mechanical and thermal history;
- the effect of chemical structure, such as branching, entanglements and molecular mass.
| DevelopmentNote |
Supersedes ISO/DIS 16790 (07/2005)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| NEN ISO 16790 : 2005 | Identical |
| NF ISO 16790 : 2006 | Identical |
| BS ISO 16790:2005 | Identical |
| ISO 11443:2014 | Plastics Determination of the fluidity of plastics using capillary and slit-die rheometers |
| ISO 291:2008 | Plastics Standard atmospheres for conditioning and testing |
| ISO 1133:2005 | Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics |
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