Responsible Minerals Initiative (RMI) - Responsible Minerals Assurance Process T-5: 3TG: internal material control and mass balance within 10 percent

What does T-5 require?

The facility must identify and date every material receipt, calculate inventory including work in progress, monitor processing losses and investigate unreasonable gains or losses in writing, reconcile receipts, inventory, losses and sales, investigate discrepancies, and produce a mass balance in which declared and calculated closing inventory differ by less than 10 percent of material processed (a shortfall beyond 10 percent needs investigation and justification).