ताम्रं पीतकं करोति ॥ कZ_०२.१३.५२ ॥
tāmraṃ pītakaṃ karoti
(Cách xử lý này) làm cho đồng (tāmra) ngả vàng (pītaka).
Because yellowed copper can imitate gold; knowing the technique helps officials detect fraud and regulate artisans and traders.