Thank you for your answers.
For example :
Stiffened Raft Class S Articulated Full Masonry: AS2870 Figure 3.1=500mm vs NCC 2019 Table 3.2.5.4b = 400mm
Another example:
Stiffened Raft Class M Full Masonry: AS2870 Figure 3.1=950mm vs NCC 2019 Table 3.2.5.5a = 800mm
There are others but I gave two examples. Another thing is that the standard is in "Pending Revision" status, and this makes things more confusing.