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BS 2782-7:Method 722B:1996
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Methods of testing plastics. Rheological properties Determination of the fluidity of plastics using capillary and slit-die rheometers
Hardcopy , PDF
23-03-2005
English
15-07-1996
Committees responsible
National foreword
Method
1 Scope
2 Normative references
3 Definitions
4 General principles
5 Apparatus
6 Sampling
7 Procedure
8 Expression of results
9 Precision
10 Test report
Tables
1 Designation of test methods
2 Maximum allowable temperature differences as a function of
distance and as a function of time
3 Typical test temperatures
Figures
1 Typical example of an extrusion rheometer used with
capillary die
2 Typical example of an extrusion rheometer used with a slit
die
3 Application of the Bagley correction method
4 Schematic Bagley plot for capillary dies
5 Schematic Bagley plot for slit dies
A.1 Shear-rate ratio versus thickness-to-width ratio H/B
Annexes
A (informative) Method of correcting for the influence of H/B
on the apparent shear rate
B (informative) Measurement errors
C (informative) Effect of flow conditions on measurement
accuracy
D (informative) Bibliography
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