VOLUME DETERMINATION FOR 2 kg~20 kg IN NIM

Yao Hong, Wang Jian, Ding Jing’an, Guo Lixiong, Zhong Ruilin

Abstract

In NIM, it has already set up the volume determination system from 20 kg to 1 g. But regarding the weights from 2 kg to 20 kg, it is taken method A3 in OIML R111 to measure the volume of weights. Comparing the other two methods mentioned in OIML R111 and the volume comparator VC1005 at mass lab in NIM, the measuring accuracy couldn’t meet the requirements of national secondary standard weight set.<BR />A new volume measuring system is being set up at mass lab in NIM, to replace the old mechanical system. There are two working positions not only in the liquid but in the air as well. The weighing method to determine the volume of weights from 2 kg to 20 kg is taken method A1 mentioned in OIML R111.

Keywords

volume of weight, volume comparison, solid density, measurement

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IMEKO-WC-2012-TC3-O37.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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