基本説明
Presents the practical aspects of mass measurements. Gives guidance to practicing metrologists. It describes Metric Convention and International Prototype Kilogram and BIPM standards.
Full Description
Starting with the necessity of redefining the unit kilogram in terms of physical constants, various methods of defining the kilogram in terms of physical constants are described. The kilogram can be defined by Avogadro's constant, ion collection of some heavy elements, levitation, voltage and Watt Balance.
