उद्गतचूलिकमच्छं भ्राजिष्णु दधिवर्णं च शुद्धम् ॥ कZ_०२.१३.१४ ॥
udgatacūlikam acchaṃ bhrājiṣṇu dadhivarṇaṃ ca śuddham
Purified (silver) shows an emerged crest/bead, is clear, shining, and has the color of curd (milk-white).
They allow supervisors to verify purity quickly on-site, strengthening compliance without complex instrumentation.