ASTM International

Standard Test Method for Measurement of Properties of Thermoplastic Materials by Screw-Extrusion Capillary Rheometer
 N D5422

Annotation

This test method covers the use of a screw-extrusiontype 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.

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 D 3835).

Capillary rheometer measurements for thermoplastics and thermoplastic compounds are described in Test Method D 3835.

The values stated in SI units are to be regarded as standard.

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 no known ISO equivalent to this standard.

*A Summary of Changes section appears at the end of this standard.

Автоматический перевод:

Метод стандартной пробы для измерения свойств термопластических материалов реометром капилляра вытеснения винта