double getTotalContent_lbs() const;
double getTotalContent_kg() const;
double getTotalContent_gal_us() const;
double getTotalContent_gal_imp() const;
double getTotalContent_m3() const;
double getTotalContent_norm() const;
double getTotalContent_lbs() const;
double getTotalContent_kg() const;
double getTotalContent_gal_us() const;
double getTotalContent_gal_imp() const;
double getTotalContent_m3() const;
double getTotalContent_norm() const;