For all those looking for proof, here are two papers similar to the work I'm doing, but on PVC. The data is a bit lower on CPVC, but again I can't release numbers.:
http://www.sciencedirect.com/science/article/pii/S0021967397002641#secx15
http://onlinelibrary.wiley.com/doi/10.1002/aoc.246/pdf
I'd like to quote on toxicity:
"Specifically, dibutyltin (DBT) has been shown to cause significant neurotoxicity in immature brain cell cultures at 30 ppb, to cause 100% suppression of natural killer lymphocytes function at approximately 3 ppm and 30% suppression at 150 ppb, and to be a potent teratogen if exposure is during the period of organogenesis"
Is this good enough? (Seriously, not sarcasm.)
By the way, Itellectual Property (IP) is just that,
property. Giving it away is not just a fireable offense, it comes with severe litigation and possible jail-time (up to 10 years I believe). It's not a whistleblower issue, because this info (that organotin is extractable from CPVC) is well know in the scientific community. What I can't release is how to get the material cleaner or the data related to washing of the material, efficiency, etc. It crosses many polymers so is applicable to things like BPA, MDA, Zn, Cu and other materials known to be toxic.
Let me know if these do not satisfy your quest for indisputable proof.