So their response was helpful....not!
I asked: I have a question. On TSC Apparel's web site they have the I am guessing 2013 discharge chart and it show the Black as an "A" rating but on the 2018 the Black has a "C" rating. Can you please explain why the change from "A" to "C" and why a black would have a "C" rating?
Their response: Anvil was bought by Gildan in 2012, its likely that this information was carried over from the old Anvil. The discharge rating we sent has been in place for the last 3 years and is the most accurate information.
I asked for the Gildan chart waiting on it. Do you think they use the same dye for the black on Gildan and Anvil or would the chemistry be different?