標準號：BS EN ISO 8781-2-1991
中文標準名稱：顏料和稀釋劑.色散特性評定方法.第2部分:研磨細度變化評定
英文標準名稱：Pigments and extenders. Methods of assessment of dispersion characteristics. Assessment from the change in fineness of grind
標準類型：G54
發(fā)布日期：1991/4/30 12:00:00
實施日期：1991/4/30 12:00:00
中國標準分類號：G54
國際標準分類號：87.060.10
適用范圍：The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The pigment is dispersed in stages under specified conditions in an agreed binder system. After each stage, a portion of the mill base is taken and its fineness of grind is determined as described in ISO 1524. The fineness-of-grind values are plotted graphically as a function of the dispersion work done (expressed as time, number of revolutions, etc.). From the graph, the work necessary to obtain an agreed fineness of grind is determined.