First, I had a brief, but good conversation with the HR manager. Then, I met two chemistry department managers who were extremely relaxed and made me feel very positive throughout the entire interview. I was then called back by the HR manager for a lab demo. I toured their three facilities and everyone seemed very pleasant. Finally, one of the managers I interviewed with put me to practice some basic lab skills, which included pipetting, and weighting flasks. Very simple stuff. However, I was annoyed that I was not given a calculator, but after asking for one that was resolved. I can only complain about the first problem. I would recommend knowing the Concentration1 x volume1 = Concentration2 X Volume2 equation. I knew it myself during the time I did the lab demo, I just didn't apply it because I didn't know how to convert grams of water into milliliters, and it turns out that it's was very simple (1 gram = 1 milliliter). I felt so dumb. I could have found the diluted concentration for all six samples. I think this might have jeopardized my opportunity to work for them. Last thing he said: " Thanks for coming, I will evaluate your results with our other candidates, and will pick the candidate with the best results." `I'll just wait and see for now...they might just call me back.