DIGITAL NIST: An examination of the obstacles and opportunities in the digital transformation of NIST's reference materials [0.03%]
数字化NIST：对NIST标准参考数据数字化转型之机遇与障碍的探讨分析
William Dinis Camara,Steven Choquette,Katya Delak et al.
William Dinis Camara et al.
Early in 2022, NIST embarked on a pilot project to produce digital calibration reports and digital certificates of analysis for reference materials. The goal is to produce examples of digital reports and certificates to assess the scope and...
CCM PILOT STUDY OVERVIEW: GEOMETRICAL MEASUREMENT OF THE ROCKWELL DIAMOND INDENTER [0.03%]
CCM 试点研究概述：Rockwell 金刚石压头的几何测量
R R Machado,S Low,A Germak
R R Machado
This paper describes an overview of the capability of the NMIs that participated on the CCM Pilot Study measurement systems, conducted by the CIPM/CCM/Working Group on Hardness, to characterize the Rockwell hardness diamond indenter geometr...
Progress on vacuum-to-air mass calibration system using magnetic suspension to disseminate the Planck-constant realized kilogram [0.03%]
基于磁悬浮的真空到空气质量链接装置实现并传播Kibble天平千克单元取得进展
Eric C Benck,Corey Stambaugh,Edward C Mulhern et al.
Eric C Benck et al.
The kilogram is the unit of mass in the International System of units (SI) and has been defined as the mass of the International Prototype Kilogram (IPK) since 1889. In the future, a new definition of the kilogram will be realized by fixing...