وحدة النظام الأساسية لقياس كمية المادة تسمى. وحدة النظام الأساسية لقياس كمية المادة تسمى..

The seven and the interdependency of their definitions The and , once given special status, are now considered dimensionless derived units
It was renamed the " kelvin" symbol "K"; "kelvin" spelt with a lower case "k" in 1967 9747 of the for 1900 January 0 at 12 hours

نظام الوحدات الدولي

Clockwise from top: , , , , , and.

11
وحدة النظام الأساسية لقياس كمية المادة تسمى
Being one thousandth of a cubic metre, the litre is not a coherent unit of measure with respect to SI
مفهوم المول
Interim 1954 : The 0
شارح الدرس: تعريفات وحدات النظام الدولي
March 1976 [First published October 1963]
012 kilogram of carbon 12 012 kilogram of carbon 12
The ordering of this table is such that any derived unit is based only on base units or derived units that precede it in the table Interim 1960 : 1 650 763

النظام الدولي للوحدات (SI)

Interim definitions are given only when there has been a significant difference in the definition.

شارح الدرس: تعريفات وحدات النظام الدولي
United Kingdom and the former Empire Logo of the American National Metrication Council, an organization set up by to coordinate the country's transition to the metric system
النظام الدولي للوحدات (SI)
Online Categorised Metric Conversion Calculator• The [CGS] electromagnetic unit of current is that current, flowing in an arc 1 cm long of a circle 1 cm in radius creates a field of one at the centre
نظام الوحدات الدولي
: National Bureau of Standards