पञ्चाशद्भागो मानस्रावो द्रवाणाम् ॥ कZ_०२.१९.४४ ॥
pañcāśadbhāgo mānasrāvo dravāṇām
对液体而言,允许的渗漏损耗(māna-srāva)为1/50。
It creates a measurable tolerance band: inspectors can distinguish natural loss from deliberate under-filling, reducing arbitrary enforcement.