Comparison between the National Prototype of the kilogram and stainless steel mass standards

International Journal of Metrology and Quality Engineering

Adriana Vâlcu¹ 

[1] National Institute of Metrology, Bucharest, Romania

关键词: International Journal;    Metrology;    Quality Engineering;    IJMQE;    EDP Sciences;   

DOI  :  10.1051/ijmqe/2016010

学科分类：工程和技术（综合）

来源: EDP Sciences

【 摘 要 】

In 2013, the National Prototype of the Kilogram (NPK) No. 2 belonging to Romania, together with stainless steel kilogram standard Ni 81, received an updated mass value from BIPM. Therefore, the first task after their receiving from BIPM was to perform comparisons between NPK and reference kilograms stainless steel standards. In the paper are described mass standards, weighing scheme used for comparisons, calculations of mass and associated uncertainties, as the mass change for all weights involved. It is also presented a comparison between Romanian CMC(s) and other countries for this important stage of dissemination of mass unit.

【 授权许可】

CC BY