ƒ hi goingtobebiginasia,
I also found this just by googling ''cot standards Australia".... hope it helps.

# Spaces between vertical bars must measure between 5cm and 9.5cm in width in
order to prevent head entrapment.
# There should not be any gaps in the cot that measure between 3cm and 5cm in
width, in order to prevent arm or leg entrapment.
# There should not be any gaps in the cot that measure between 5mm and 12mm in
width, in order to prevent finger and toe entrapment.
# The distance between the top of the mattress and the top of the cot sides should be
at least 50cm.
# The inside of the cot must be free from horizontal bars or other features that may
allow your baby to climb over the side of the cot.
# There should be no protruding parts or screws that clothing may get caught on.
# Protrusions must not measure more than 8mm and bolts must not measure more
than 5mm in height.
* source The Children?s Hospital at Westmead, 2008 fact sheet.