Left panel: comparison between KINGFISH (Dale et al. 2012) and HRS flux densities of six common galaxies: NGC 4254 (HRS 102), NGC 4321 (HRS 122), NGC 4536 (HRS 205), NGC 4569 (HRS 217), NGC 4579 (HRS 220) and NGC 4725 (HRS 263) in the three SPIRE bands. Blue diamonds, green triangles and red squares are for the 250, 350 and 500 μm measurements respectively. The dashed lines give the linear fits. Right panel: the flux density ratio obtained in this work to those given by Dale et al. (2012) (crosses), as well as to those that we have extracted using our own procedure from the public KINGFISH images (diamonds).