It depends on who owns the air pump. They can set whatever policy they want. I don’t know how common it is but I know a filler that won’t fill aluminum tanks over 20 years old. They don’t care what tests you have run on them. Right or wrong it’s their pump and they decide what tanks they will fill. I’d check on who you will expect will be filling your tanks most of the time to see if they are one of the restrictive facilities.