BS 2782-7:Method 722B:1996
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 the fluidity of plastics using capillary and slit-die rheometers
Hardcopy , PDF
English
15-07-1996
23-03-2005
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
Gives methods to determine fluidity of plastic melts subjected to shear stresses at rates and temperatures approximating to those arising in plastic processing.
| Committee |
PRI/21
|
| DevelopmentNote |
DRAFT FOR COMMENT 92/45392 DC
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 11443:2014 | Identical |
| ISO 11443:1995 | Identical |
| ISO 6507-1:2005 | Metallic materials — Vickers hardness test — Part 1: Test method |
| ISO 468:1982 | Surface roughness — Parameters, their values and general rules for specifying requirements |
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