There are many issues when having a lab do the experiments from long distance. The main difficulty would getting everything done in time. Many factors play into this when outsourcing. You must keep in mind the holidays observed if the university is in a different country and also the laws there. Another main issue is that this lab may have other companies have to its testing there. If they get a bigger project than yours, they will push it aside to the bigger one. Another factor would be cost. It maybe cheaper to get it done elsewhere but it will take longer. If it is done closer to the company, they can keep an eye on the university and make sure everything is done on time. The quicker the labs are done, the faster the product can be in the market.