श्यावो नीलश्चाप्राप्तकः ॥ कZ_०२.१३.२७ ॥
śyāvo nīlaś cāprāptakaḥ
暗褐色または青みがかっているなら、受け取ってはならない(不適格である)。
It means the treasury/mint should not accept such metal as standard bullion—preventing loss from impure or debased gold.