(a) Comparison chart for sorting and sorting classes. (Modified from Pettijohn et al. 1987.) (b) Comparison chart for roundness and sphericity. (Modified from Powers, 1953.) Category:Laboratory methods
(a) Comparison chart for sorting and sorting classes. (Modified from Pettijohn et al. 1987.) (b) Comparison chart for roundness and sphericity. (Modified from Powers, 1953.)