अर्पयेत्काचकर्मणः पञ्चभागं काञ्चनं दशभागं कटुमानम् ॥ कZ_०२.१३.४१ ॥
arpayet kāca-karmaṇaḥ pañca-bhāgaṃ kāñcanaṃ daśa-bhāgaṃ kaṭu-mānam
For glass-work, he should allot: five parts of gold, and ten parts of the “kaṭu” measure (as the prescribed additive proportion).
It enables auditing of inputs vs outputs, limits discretionary adulteration, and standardizes quality for state procurement.