And in theory, this is actually a really good idea, and something the Western nations
should be doing. China's human rights and environment records are abysmal. It would be to the advantage of western nations to be more unified for their common benefit, and force China to catch up. However the TTIP/TPP are going the wrong way: they're trying to water down or eliminate environmental and consumer protections in favor of large corporations' profits. In other words, they're trying to lower the bar rather than to raise it as they should be.
We really could use a standardized international trade treaty, but it has to be done in the open, and with input from more parties than just big corporations interested only in their profits, it needs input from environmental groups, workers' groups/unions, consumer rights advocates, food-safety organizations, etc.