Here is a good guide to identifying.
Check tassie laws around home owners and asbestos. I’ve looked closely at setting up an asbestos removal business here in Melbourne but too many cowboys undercutting and illegally dumping, plus here home owner can do themselves if less then 10sq meters.
Cement sheet snaps, often makes a noise. Low density asbestos sheet, like what I think you have, tears.
Get the garden hose in there, towels on top. Plastic sheet up like a slaughter room, negative pressure, fan blowing outwards to outdoors.
If you are going to remove yourself, 3M coveralls, 3M full face mask, treat everything like it’s got wet paint as far as transfer goes. Wet wipes to clean mask before removal, garden hose to hose yourself down, coveralls into a sealed bag, goes to the asbestos transfer station/landfill along with the actual asbestos.
Min call out fee in Melbourne for under 10sq m from a licenses removalist was $1200 ish when I last looked. Tipping fees and insurance eat up much of that.