CARBON BLACK DISPERSION STANDARDS VISUAL ANALYSIS OF TORN VULCANIZATES 1 2 3 MAGNIFICATION X 10 4 5-I I-1 mm l American Society for Testing and Materials 1916 Race Street Philadelphia,PA 19103 ASTM Designation:D 2663 PCN:12-426630-20 ASTM International 100 Barr Harbor Drive,PO Box C700 West Conshohocken,PA 19428-2959 ASTM Designation:D 2663 ASTM Stock Number:ADJD266301-E-PDF 20212 2021