शौम्ब्यानामर्धं सारः त्रिभागोनो मसूराणाम् ॥ कZ_०२.१५.३१ ॥
śaumbyānām ardhaṃ sāraḥ tri-bhāga-ono masūrāṇām
For śaumbyas, the usable kernel (sāra) is one-half; for lentils (masūra), it is one-third less.
It is a ‘net edible’ benchmark—useful for audits, ration equivalence, and detecting shrinkage beyond normal processing loss.