Norm

NEN-ISO 1133:1997 en

Kunststoffen - Thermoplasten - Bepaling van de smeltindex op basis van massa (MFR) en volume (MVR)

  • Deze norm is ingetrokken sinds 01-05-1999

48,19

Over deze norm

Status Ingetrokken
Aantal pagina's 11
Commissie Kunststoffen
Gepubliceerd op 01-02-1997
Taal Engels
Specifies a method for the determinaton of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified conditions of temperature and load. Normally, the test conditions for measurement of melt flow rate are specified in the material standard with a reference to this International Standard. The test conditions normally used for thermoplastics are listed in annexes A and B. The melt volume-flow rate will normally be found useful when comparing filled and unfilled thermoplastics. The melt mass-flow rate can now be determined by automatic measurement provided the melt density at the test temperature is known. The melt mass-flow rate and melt volume-flow rate of thermoplastics are dependent on the rate of shear. The rates of shear in this test are much smaller than those used under normal conditions of fabrication, and therefore data obtained by this method for various thermoplastics may not always correlate with their behaviour in actual use. Both methods are useful in quality control.

Details

ICS-code 83.080.20
Nederlandse titel Kunststoffen - Thermoplasten - Bepaling van de smeltindex op basis van massa (MFR) en volume (MVR)
Engelse titel Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
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