if(prefixes.AUTO!==undefined){throw new Error('The \'AUTO\' unit prefix is not supported for unit'+'prefix scales and cannot be added to scale \''+name+'\'');}
UnitPrefixScale[name]=prefixes;}
UnitScale.defineUnitScale=function(name,unitScale){if(UnitScale[name]!==undefined){throw new Error('Unit scale \''+name+'\' already exists');}