DefinitionA <SCALAR MAGNETIC POTENTIAL> is a <Property> that is a measure of the strength of a <MAGNETIC FIELD>. For an irrational <MAGNETIC FIELD> the value may be calculated as H = -grad V_m where H is <MAGNETIC FIELD STRENGTH> and V_m is the <SCALAR MAGNETIC POTENTIAL>. Defined in ISO 80000-6 (2008) 6-37.1