श्वेतं स्निग्धं मृदु च श्रेष्ठम् ॥ कZ_०२.१३.११ ॥
śvetaṃ snigdhaṃ mṛdu ca śreṣṭham
最好的(银)应当洁白、光润(似带油泽),且柔软(可锻)。
They provide field-ready inspection criteria for officials, enabling consistent acceptance/rejection without specialized devices.