code: def _Conductivity(rho, T):
      
      # FIXME: Dont work
      rho_ = rho/1000
      kw = 10**-_Kw(rho, T)
  
      A = [1850., 1410., 2.16417e-6, 1.81609e-7, -1.75297e-9, 7.20708e-12]
      B = [16., 11.6, 3.26e-4, -2.3e-6, 1.1e-8]
      t = T-273.15
  
      Loo = A[0]-1/(1/A[1]+sum([A[i+2]*t**(i+1) for i in range(4)]))      # Eq 5
      rho_h = B[0]-1/(1/B[1]+sum([B[i+2]*t**(i+1) for i in range(3)]))    # Eq 6
  
      # Eq 4
      L_o = (rho_h-rho_)*Loo/rho_h
  
      # Eq 1
      k = 100*1e-3*L_o*kw**0.5*rho_
      return k
docs: Equation for the electrolytic conductivity of liquid and dense
      supercrítical water
  
      Parameters
      ----------
      rho : float
          Density, [kg/m³]
      T : float
          Temperature, [K]
  
      Returns
      -------
      K : float
          Electrolytic conductivity, [S/m]
  
      Notes
      ------
      Raise :class:`NotImplementedError` if input isn't in limit:
  
          * 600 ≤ ρ ≤ 1200
          * 273.15 ≤ T ≤ 1073.15
  
      Examples
      --------
      >>> _Conductivity(1000, 373.15)
      1.13
  
      References
      ----------
      IAPWS, Electrolytic Conductivity (Specific Conductance) of Liquid and Dense
      Supercritical Water from 0°C to 800°C and Pressures up to 1000 MPa,
      http://www.iapws.org/relguide/conduct.pdf