import { Unit } from "./Unit";
export declare class UnitConcentrationMass extends Unit {
    static gramsPerLiter: UnitConcentrationMass;
    static milligramsPerDeciliter: UnitConcentrationMass;
    static millimolesPerLiter: (gramsPerMole: number) => UnitConcentrationMass;
    constructor(name: string, symbol: string, description: string, baseUnitConversionFactor: number);
}