Figure 2 shows the subset of WGFS CFVs that are calibrated on the 26 m3 PVTt flow standard.
The sizes of these CFVs were selected so that the lower and upper limits of their flow ranges
overlap. The smallest three CFVs in Fig. 2 have a portion of their flow ranges that can be
calibrated on both the 677 L and the 26 m3 PVTt.