परिमाणीद्रोणयोरर्धपलहीनातिरिक्तमदोषः ॥ कZ_०४.२.०३ ॥
parimāṇīdroṇayor ardhapalahīnātiriktam adoṣaḥ
For the standard measuring-vessel (parimāṇī) and the droṇa measure, a deviation up to half a pala—whether short or excess—is not treated as an offence.
To define an enforceable tolerance band that accounts for practical measurement error while reserving punishment for meaningful fraud.