i agree with the previous post. Who needs 26 years worth of anything?

I support the idea of selling pre-diluted smaller quantities. If the idea of selling a reference solution is to make it easier and more accurate for us, why stop half way. Make it fully ready to use and more people will use it.

If shipping weight is an issue, they can sell smaller 100ml bottles as well that would last more than a year. Nothing wrong with reordering once a year - and it's better business for the seller.