श्वेतं स्निग्धं मृदु च श्रेष्ठम् ॥ कZ_०२.१३.११ ॥
śvetaṃ snigdhaṃ mṛdu ca śreṣṭham
最上の(銀)は、白く、つややか(油のような光沢)で、柔らかい(可鍛性がある)。
They provide field-ready inspection criteria for officials, enabling consistent acceptance/rejection without specialized devices.