ASTM-D5422 › Historical Revision Information
Measurement of Properties of Thermoplastic Materials by Screw-Extrusion Capillary Rheomete
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Scope
1.1 This test method covers the use of a screw-extrusion-type capillary rheometer for the measurement of flow properties of thermoplastics and thermoplastic compounds. The measured flow properties, which are obtained through laboratory investigation, may help to describe the material behavior that occurs in factory processing.
1.2 Since a screw-type capillary rheometer imparts shear energy to the material during testing, the measurements will usually differ from those obtained with a piston-type capillary rheometer (see Test Method D3835).
1.3 Capillary rheometer measurements for thermoplastics and thermoplastic compounds are described in Test Method D3835.
1.4 The values stated in SI units are to be regarded as standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1--There is currently no equivalent ISO standard.
Keywords
capillary rheometer; flow properties; material properties; molecular properties; rheological properties; rheology; screw extrusion; ICS Number Code 83.080.20 (Thermoplastic materials)
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83.080.20 (Thermoplastic materials)
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Document Number
ASTM-D5422-93
Revision Level
1993 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
June 15, 1993
Document Type
Test Method
Page Count
6 pages
Committee Number
D20.30