Chilogrammo: differenze tra le versioni

 

== Collegamenti esterni ==

* {{cita web|http://www.metrologia-legale.it|www.metrologia-legale.it}}

* {{cita web|url=http://www.npl.co.uk/engineering-measurements/mass-force-pressure/mass/research/redefining-the-kilogram|titolo=National Physical Laboratory FAQ on kilogram definition, the need for a new definition, and some alternatives|lingua=en|accesso=9 febbraio 2012|urlarchivio=https://web.archive.org/web/20120109072029/http://www.npl.co.uk/engineering-measurements/mass-force-pressure/mass/research/redefining-the-kilogram|urlmorto=sì}}