षट्त्रिंशदङ्गुलमञ्जनवर्णं सामूरम् ॥ कZ_०२.११.८९ ॥
ṣaṭtriṃśadaṅgulamañjanavarṇaṃ sāmūram
সামূর (পরিমাপে) ছত্রিশ অঙ্গুল এবং অঞ্জন/সুরমার রঙের (গাঢ় কালো)।
It standardizes acceptance and pricing, prevents under-delivery, and simplifies auditing of storehouse issues and workshop consumption.
Color is a quick inspection proxy for processing method, dyeing, and grade; it helps detect substitution or defective curing.