I'm sorry for my misunderstanding.
In that subject the client store de product in the same way, in a deposit with not controlled or monitored temperature.
That's way I know there is a problem in summer with the product that its stored because its disposed.
But when I see the legend in the box of the supplier, I though "Great, there its a way to take care of the product and avoid that scrap of material".
But, when I go to the supplier they dont control the temperature and says that the legend value of temperature limit its just a recommended value.
So again, I am in conflict, I know its a problem to the client, I know its in the legend on the box, but its not write as a requirement in any document (nor by the client, nor by the supplier).
Its a problem that its see but not recognised by any party.