K&J 2-Pack Universal Descaling Solution - Compatible with All Coffee Brewers

how do I use this product in the Breville tea kettle? There are no directions!

Is there a safety data sheet for this product? how may i acquire it?

How much of the solution should be used in a K15 single cup brewer? Should it still be half the bottle or a lesser amount?

Mine did not come with instructions. Do I dilute it or use it full strength?