Classificaton _________________ | Sieve Size Minimums _________________________ |
Fine-sized | 95% through a 20 mesh sieve |
60% through a 60 mesh sieve | |
50% through a 100 mesh sieve | |
Medium-sided | 90% through a 20 mesh sieve |
50% through a 60 mesh sieve | |
30% through a 100 mesh sieve | |
Coarse-sized | 80% through a 20 mesh sieve. |
20% through a 100 mesh sieve. |
330 CMR, § 15.04