International System of Units

International System of Units OverviewFormats, expressions and symbolsDetails Abbreviation SI units Synonym Metric system of units Definition A set of measurement units defined accordance to the corresponding International System of Quantities (ISQ) Scope The system...

Rules for use of SI-prefixes

Rules for use of SI-prefixes in laboratory medicine OverviewSI prefix table (modified)Various expressions of SI unitsVarious expressions of SI factors units Definition SI prefixes are a set of multiples and submulitples within the SI system Purpose of the use of...

Non-SI units

Non-SI units OverviewExamples of non-SI unitsWHO International Unit (IU)Procedure defined unit (p.d.u.)Details Definition Measurement unit that is outside the SI system Note: Non-SI units have magnitudes (values) that do not belong to the 7 physical dimensions or...