Chapter 2: Units and Standards of Measurement
Abstract: The International System of Units (SI) is a system of measurement that defines standard units for all physical quantities: Base units The SI is based on seven base units that define the fundamental quantities of measurement: Length: Meter (\(m\)) Mass: Kilogram (\(kg\)) Time: Second (\(s\)) Electric current: Ampere (\(A\)) Temperature: Kelvin (\(K\)) Amount of substance: Mole (\(mol\)) Luminous intensity: Candela (\(cd\)) Derived units In addition to the base units, there are derived units whose values are based on one or more base units Traceability The traceability of measurement standards and instruments to the SI is established by a chain of calibrations or comparisons that link them to the SI's primary standards International Bureau of Weights and Measures (BIPM) The BIPM is responsible for ensuring that measurements are uniform...