This International Standard specifies a qualitative, rapid comparative visual test method for evaluating the degree of macroscopic dispersion of carbon black and carbon black/silica in rubber. Grading is based on a set of standard pictures divided into 1-10 levels, and the results are expressed in numbers. In addition, this standard also specifies a numerical scale (1 to 10) to describe the method of large lumps.
GB/T 6030-2006 Referenced Document
GB/T 6039 Rubber physical tests and chemical tests--Terms
GB/T 6030-2006 history
2006GB/T 6030-2006 Rubber. Assessment of carbon black and carbon black/ silica dispersion. Rapid comparative methods
1985GB/T 6030-1985 Vulcanized rubber--Determination of carbon black dispersion--Micrographic method