कालायसपिण्डः पञ्चभागक्षयः ॥ कZ_०४.१.४१ ॥
kālāyasapiṇḍaḥ pañcabhāgakṣayaḥ
Ang isang tipak (ingot) ng bakal (kālāyasa) ay dapat bawasan ng isang‑ikalima (20%) [bilang pinahihintulutang pagkawala/kakulangan].
The state recognizes material-specific processing loss/impurity risks and encodes them into uniform valuation rules to reduce bargaining and manipulation.