Question

Define standard kilogram. SI system is accepted by all nations in the world, why

Answer 1

Answer:

For 130 years, the kilogram has been defined as the exact weight of a cylinder of platinum-iridium held in a triple-locked vault in Paris. Metrologists — experts in the science of measurement — refer to the metal lump as the International Prototype Kilogram, or IPK. Others call it “Le Grand K.” It is the one true kilogram in the world, upon which all measures of mass on Earth depend

Answer 2

Answer:

kilogram is the base unit of mass in the international system of units.

SI system of units is preferred all over the world because it has only one unit for each quantity hence no confusion in unit conversion.