1-2 5) templates for belt sampling. sample reduction equipment required for aashto t 248 1) mechanical splitters 2) buckets sieve analysis equipment required for aashto t 27 1) sieves - for coarse aggregates 15 in. x 23 in. or 14 in. x 14 in. screens,a glossary of the most common mining terms,may 04, 2018 dso (direct shipping ore) high grade hematite is often referred to as dso because it is mined and beneficiated using a relatively simple crushing and screening process before being exported for use in steel mills. enterprise value market cap plus debt, minority interest and preferred shares, minus total cash and cash equivalents.