Norm

ISO 23900-2:2015 en

Pigmenten en vulstoffen - Methoden van dispersie en beoordeling van dispersie-eigenschappen in kunststoffen - Deel 2: Bepaling van kleureigenschappen en gemak van dispersie in geplastificeerd polyvinylchloride door twee-rolfrezen

48,19

Over deze norm

Status Definitief
Aantal pagina's 8
Commissie Verfwaren
Gepubliceerd op 01-05-2015
Taal Engels
ISO 23900-2 specifies a method of determining the colouristic properties of a test pigment relative to a standard, and the ease of dispersion DHPVC-P of pigments from the differences in colour strength on dispersing colouring materials under various conditions in plasticized polyvinyl chloride (PVC-P) compounds. The method is appropriate for use with organic and inorganic black and colour pigments and for pigment preparations. The ease of dispersion determined in this way is valid only for the dispersion equipment, dispersion conditions and dispersion medium being used. The use of test conditions differing from those specified may give different results; this applies both to the absolute magnitude and to the relation between values of the ease of dispersion of various pigments. The subscript DHPVC-P is therefore used to designate the value obtained as specified in this part of ISO 23900. The principle of this part of ISO 23900 may also be used for routine quality control purposes by reference to the photometric data generated from the sheets milled at 130 °C. For quality control purposes, the ratio of pigment to TiO2 may be agreed between the interested parties. Ratios of 1:10 for organic pigments and 0,2 to 0,5:1 for inorganic pigments are suggested as convenient and widely used standard ratios.

Details

ICS-code 87.060.10
Nederlandse titel Pigmenten en vulstoffen - Methoden van dispersie en beoordeling van dispersie-eigenschappen in kunststoffen - Deel 2: Bepaling van kleureigenschappen en gemak van dispersie in geplastificeerd polyvinylchloride door twee-rolfrezen
Engelse titel Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 2: Determination of colouristic properties and ease of dispersion in plasticized polyvinyl chloride by two-roll milling
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