It will be close. Get some testing strips off of ebay, they should only take a few days to get. I would also follow the dillution sticky to a "T", and you should be fine, but don't guess and worry, get the test strips and know for sure. If you don't want to stop smoking , and this is a pre-employment test, then smoke up and get some quick fix and follow the substitution sticky and you will be good.

Good luck.