Construction Glass floor in my house in uk

Hi all, i want to construct a glass floor in my bathroom it will only sit 1 foot off the soild wood floor, ive got a supplier from china for the frame and glass panels however what im worried about is there any regulations i need to follow regarding the glass panels..they are made from 12mm laminated glass size 600mm*600mm and then sit on a 2mm acrylic board what if i want to sell this product will i be able to,what are the glass regulations for the sizes of glass that im using, and the glass if from china does it need some kind safty stamp ive tryed to purchase a floor from uk far to expensive...any help would be great im new to all this as im in the building trade, ive tryed building control they dont want respond as they dont know etc Thanks to all that answer