तद् येनाप्राप्तकं तच्चतुर्गुणेन सीसेन शोधयेत् ॥ कZ_०२.१३.०६ ॥
tad yenāprāptakaṃ taccaturguṇena sīsena śodhayet
凡“取得不当”(即不能正确出产/出料)的金属/矿石,应以四倍比例加入铅来精炼。
It creates a repeatable state-standard process so treasury inputs (bullion/metal) meet uniform purity, reducing fraud and variability in minting.