Kilogramområden

Kilogramområden is a term used in Swedish metrology to describe defined mass intervals centered on a kilogram value. The concept serves as a descriptive label for ranges of mass that calibration laboratories and manufacturers use when testing and certifying weighing instruments. It is not an official SI term; rather, it functions as a practical way to discuss acceptable mass ranges within calibration procedures.

Typically, a kilogramområde is specified by a target mass and a tolerance, expressed as m0 ± Δm. For example, a 1-kilogramområde might cover masses from 0.999 kg to 1.001 kg. The exact limits depend on the calibration class, instrument accuracy, and the standards in use. Kilogramområden are used in calibration workflows to assign test weights to particular ranges, to document measurement uncertainty, and to plan routine checks during instrument servicing.

Relation to standards and traceability is an important aspect. Weights used for calibration are manufactured to defined classes with specified tolerances, and these weights are employed within kilogramområden to verify a scale’s performance across a mass range. By organizing tests into kilogramområden, laboratories can ensure traceability to the kilogram and assess how a balance or scale behaves near and across key mass values.

Limitations and usage vary by institution. The term kilogramområde is descriptive rather than a standardized concept, and its exact definition can differ between laboratories or industries. Understanding local practice and referencing official guidelines from metrology authorities is important when employing kilogramområden in calibration and quality assurance.

See also: Kilogram, Mass, Metrology, Calibration, Mass standard.