Thanks guy´s, this is the way I will do It. I will heaten up small glas bottles in the oven for 250d C 30 minutes or so. Then let the glasbottle cool down then repet the proceduer another 2 times. After this I will fill the bottle with the inj. liquid and seal it with an plastic top(cant find any glasbottles here with a metal head, so have to seal the bottle with a plastic top after cooling down. After this, I will boil the glasbottle with the inj. liquid in it for 30 minutes and repeat this 2 more times. Than I'm ready to go, right? What do U think?
Btw: The plastic top I will clean with boiling wather and alcohol for 10 times.
Ohh...do U think the deca(inj. liquid) will be less effective if heatened(glasbottle with it in will rase a temp of 100d C)??