Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
5.1 Extrusion plastometer
5.2 Accessory equipment
6 Test sample
6.1 Sample form
6.2 Conditioning
7 Temperature verification, cleaning and maintenance
of the apparatus
7.1 Verification of the temperature control system
7.2 Cleaning the apparatus
7.3 Vertical alignment of the instrument
8 Procedure A: mass-measurement method
8.1 Selection of temperature and load
8.2 Cleaning
8.3 Selection of sample mass and charging
the cylinder
8.4 Measurements
8.5 Expression of results
9 Procedure B: displacement-measurement method
9.1 Selection of temperature and load
9.2 Cleaning
9.3 Minimum piston displacement distance
9.4 Timer
9.5 Selection of sample mass and charging
the cylinder
9.6 Measurements
9.7 Expression of results
10 Flow rate ratio (FRR)
11 Precision
12 Test report
Annex A (normative) - Test conditions for MFR and
MVR determinations
Annex B (informative) - Conditions specified in International
Standards for the determination of the melt flow rate
of thermoplastic materials
Annex C (informative) - Device and procedure for performing
a compacted charge of material by compression
C.1 General
C.2 Principle
C.3 Apparatus
C.4 Conditioning
C.5 Compaction procedure
C.6 Handling of compacted charge
Annex D (informative) - Precision data for PP obtained
from the intercomparison of MVR and MFR
testing