BS EN 13900-3:2003 PDF

Scope: This part of this European Standard specifies a method of determining in polyethylene (PE) the colouristic properties of a test pigment relative to a standard, and the ease of dispersion DHPE of pigments from the differences in colour strength on dispersing colouring materials under various conditions. Method A is appropriate for use with organic powder pigments and carbon black pigments in powder form, many of which are subject to compaction (reagglomeration under pressure), for inorganic pigments in powder form and for pigment preparations in powder or flake form. Method B is appropriate for testing pigments and pigment preparations in granular form and for inorganic pigments in any form. 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 DHPE is therefore used to designate the value obtained as specified in this part of this European Standard.

BS EN 13900-3:2003 history

2018 BS EN ISO 23900-3:2018 Pigments and extenders. Methods of dispersion and assessment of dispersibility in plastics - Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll milling
2003 BS EN 13900-3:2003 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll milling