M00017055
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ISO DIS 23900-5 2014 Edition, May 5, 2014 PIGMENTS AND EXTENDERS - METHODS OF DISPERSION AND ASSESSMENT OF DISPERSIBILITY IN PLASTICS - PART 5: DETERMINATION BY FILTER PRESSURE VALUE TEST
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Availability date: 07/14/2021
Description / Abstract:
This part of ISO 23900 specifies a method of assessing the
degree of dispersion of a colorant in a thermoplastic polymer.
The method is suitable for testing colorants in the form of
colour concentrates in all polymers used for extrusion and
melt-spinning processes.
The filter pressure value (FPV) determined according to this
method is valid only for the equipment, conditions and test polymer
being used. The use of test conditions differing from those
specified might give different results. The method of preparing the
colour concentrate is not specified in this European Standard. The
results obtained for individual colorants are therefore comparable
only when the same method of preparation for colour concentrates is
used.
Annex A is normative and gives a model for the breaker
plate.
Annex B is informative and provides a model test report
containing a result of the round-robin-tests carried out in
preparing this European Standard.