https://www.techstreet.com/sa/standards ... id=2048299
https://www.techstreet.com/sa/standards ... id=2068452
or head across to the Steel Reinforcement Institute of Australia website
and download this presentation
which probably has enough detail for you. Take a look a Page 54 and you will your slab itself looks consistent with a Class M / Articulated full masonry construction (albeit with 3-L12TM in your case)
As per the other opinions expressed, if it was for my house, I would query the number of piles proposed.
Thank you so so much I will take a look at those resources!