function T = res2temp625(R)
  
  res2temp625 = @(R) 0.333548856582638109 + 11.7361551595386118 * (1000./R) + -31.32988932320903987 * (1000./R).^2 + 262.878643524833024 * (1000./R).^3 + -704.163538021035492 * (1000./R).^4 + 1056.6040485650301 * (1000./R).^5 + -307.057196729816496 * (1000./R).^6;
  
  T = res2temp625(R);