Dear Laurence,

Turkish Safety Standarts are designated by Institute of Turkish Standarts(T.S.E.)

TS 9041, refers to the Minimum Thickness of Glass Safety for recreational use.which is 4 to 6.5 mm.
There are no other specifications refer to the child safety or hotel windows and glass specifications.

However If the window complex is based on horizontal pulling system, then the minimum glass thickness should be 5,5 mm with double sided glass support.

Also If the stoned glasses are prefered to use then the standarts are changing again. (TS 6500)

You may also check the Institute of Turkish Standarts(T.S.E.) website. I hope this information fullfill your needs.

Take Care,
Dundar Sahin