विंशतिद्रोणिकः कुम्भः ॥ कZ_०२.१९.३२ ॥
viṃśatidroṇikaḥ kumbhaḥ
কুম্ভ বিশ দ্ৰোণৰ সমান।
To make capacity legally testable and consistent across regions and manufacturers.