Examples of map difference consistency tests at 217GHz with the f_sky ≃ 0.30 mask, derived from that used in the primary cosmological analysis (see the text). The range of multipoles shown and the binning used are identical to those described in Fig. 29. We again show in each bin the variance of the C_ℓ distribution from the simulations, and in black the binned sample variance for our mask. “Left” and “Right” refer to the two halves of the focal plane, whereas “In” and “Out” refer to detectors toward the centre and the periphery of the focal plane. Unlike in the survey difference test shown in Fig. 29, no significant null test failure is detected here. The detector combinations used in the example plots above are (5−8) × (1−4), (7−8) × (3−4), and (ds1−3) × (ds2−4) for, respectively, the (Left−Right), (In−Out), and (PSB−SWB) tests. As in Fig. 29, these power spectra are divided by four to allow for a direct comparison of the amplitude of the residuals to that of the components in the nominal mission power spectrum.