I don't know the answer to the following question. This is not my field of expertise, but I'm sure there are a lot people in the e-cig industry that are very interested after reading the Houston thread. In Small Business (SB), the cost of doing business is ALWAYS a factor. The first question probably asked by a SB owner that buys and sells nic in any form and wants to implement QC testing procedures is, "What is it going to cost?". This is a valid question because a SB owner usually doesn't initially see the benefit of spending time and money on something that they may think is not directly related to improving production. Let's put aside the time it takes to set-up QC procedures, investigate testing equipment, and perform the actual test(s), and consider only the initial cost of acceptable testing equipment with training and the cost to maintain the equipment. A SB owner can estimate the labor cost to operate and maintain equipment before buying the equipment, so a comparison of in-house testing cost versus an outside lab cost can be made with reasonable accuracy. Please chime in if you have any knowledge on this matter.