ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Realization of the definition of a given quantity, with stated quantity value and associated measurement
uncertainty, used as a reference.

Example 1: 1 kg mass measurement standard with an associated standard measurement uncertainty of
3 mg.
Example 2: 100 Ω measurement standard resistor with an associated standard measurement
uncertainty of 1 mΩ.
Example 3: Caesium frequency standard with a relative standard measurement uncertainty of 2x10 -15 .
Example 4: Standard buffer solution with a pH of 7.072 with an associated standard measurement
uncertainty of 0.006.