DIN 54811:1984-05
Withdrawn
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TESTING OF PLASTICS; DETERMINING THE FLUIDITY OF PLASTICS MELTS BY THE CAPILLARY RHEOMETER
Hardcopy , PDF
01-12-2013
English
12-01-2013
1 Scope and field of application
2 Principles of the method
3 Designation
4 Number of determinations
5 Apparatus
5.1 Test device
5.2 Temperature control
5.3 Measurement of temperature and calibration
5.4 Measurement of pressure
5.5 Measurement of volumetric throughput of the
sample
6 Sampling
7 Procedure
7.1 Cleaning the test device
7.2 Preparation of samples
7.3 Determining the maximum test duration
7.4 Measuring the volumetric throughput
8 Evaluation
8.1 Volumetric throughput
8.2 Apparent shear rate
8.3 Apparent shear stress
8.4 Flow curves and correction method
8.4.1 Flow curves
8.4.2 Plotting the flow curve
8.4.3 Correction method accordinley for
determining the true shear stress
and flow curve
8.4.3.1 Correction method according
to Bagley
8.4.3.2 Plotting the flow curve
8.4.3.3 Plotting the pressure
correction
8.4.4 Correction method according to
Rabinowitsch for determining the true
shear rate and flow curve
8.4.4.1 Correction method according
to Rabinowitsch
8.4.4.2 Plotting the flow curve
8.5 Viscosity and viscosity curve
8.5.1 Viscosity
8.5.2 Viscosity curve
9 Test report
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