ताम्रपिण्डो दशभागक्षयः ॥ कZ_०४.१.३६ ॥
tāmrapiṇḍo daśabhāgakṣayaḥ
For a copper ingot/lump, the allowable loss (wastage) is one-tenth.
It creates an audit benchmark to distinguish normal process loss from pilferage or fraud, enabling predictable enforcement.