thi | | 100 1000 10,000 Hitt | Hitt | | 148 ° Witt} | | 3ZIS Q3LVOIGNI HOV3Z YOs YH NOYDIN 2id/S3IDILaVd JO Y3GNNN ° 4 5 6 7 8 TSD (HR) 9 10 v 12 3 14 Figure 4.14 Comparative particle-size variation with time, YAG 39, Shot Tewa. 3 —_— ee INCREMENTAL COLLECTORS C-24, C-33 TEWA-~ YAG 39 re 15 16 17 18