About BETTIN Horst
About Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, DEU
About TOTH Hans
About Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, DEU
About WASEDA Atsushi
About National Inst. Advanced Industrial Sci. and Technol., Ibaraki, JPN
About FUJII Kenichi
About National Inst. Advanced Industrial Sci. and Technol., Ibaraki, JPN
About IEEE Transactions on Instrumentation and Measurement
About silicon
About molecular volume
About Measuring methods and instruments of mass,density,specific gravity
About PTB
About 密度差