Standard for Amount of Substance

The Standard for Amount of Substance:

a) Realizes the fundamental SI unit – the mole (mol). The mole is the key unit in chemistry, representing the quantity of substance, which defines the number of elementary entities in a given system.

b) Is based on measuring the electric charge required for the direct or indirect electrochemical transformation of a given substance (coulometry), where the relationship between charge and amount of substance is expressed by Faraday’s law.

Importance of Substance Quantity Measurements

Measurements of the amount of substance are crucial not only in chemistry and the chemical industry, but also in a wide range of fields, including:

• Geology,
• Metallurgy,
• Food industry,
• Healthcare,
• Trade,
• Environmental protection (ecology).

This standard ensures the accuracy and consistency of measurements in these fields, contributing to scientific research, industrial applications, and regulatory compliance.

Documents for download

• Osvedčenie (certifikát) (pdf, 901.8 kB)