What are the standards by which we use to measure length, weight, mass etc?

The National Physics Laboratory (NPL) is the UK’s National Measurement Institute, a world-leading scientific centre developing and applying the most accurate measurement standards, science and technology available. These standards underpin the National Measurement System infrastructure throughout the UK and the world to ensures accuracy and consistency of measurement.

We worked with NPL to create an interactive exhibition interpreting the seven SI base units.

• The ampere (A) – unit of measurement of electric current
• The kilogram (kg) – unit of measurement of mass
• The metre (m) – unit of measurement of length
• The second (s) – unit of measurement of time
• The kelvin (K) – unit of measurement of thermodynamic temperature
• The mole (mol)–- unit of measurement of amount of substance
• The candela (cd) – unit of measurement of luminous intensity number of the types of measurements,